Neurofeedback in Novice Meditators Can Alter Brain Activity like that Observed in Expert Meditators

psyjdc Leave a comment

Neurofeedback in Novice Meditators Can Alter Brain Activity like that Observed in Expert Meditators

 

By John M. de Castro, Ph.D.

 

“Modern researchers and practitioners are finding a possible new solution to these challenges by using EEG biofeedback to increase awareness of subtle states of consciousness and speed the learning process.” – Jeff Tarrant

 

Meditation training has been shown to improve health and well-being. It has also been found to be effective for a large array of medical and psychiatric conditions, either stand-alone or in combination with more traditional therapies. As a result, meditation training has been called the third wave of therapies. But meditation can be challenging to learn and many people become discouraged and drop the practice. But modern neuroscience has developed a tool called neurofeedback that can assist the meditator in improving the meditative experience.

 

In today’s Research News article “Closed-Loop Frontal Midlineθ Neurofeedback: A Novel Approach for Training Focused-Attention Meditation.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7344173/ ) Brandmeyer and Delorme recruited healthy meditation-naïve adults and assigned them to either a neurofeedback group or to an age and gender matched active sham control group. Training occurred over 2 weeks in 8 sessions. All participants had their electroencephalogram (EEG) recorded while performing breath focused meditation while receiving feedback as to the level of theta activity (4-6 hz.) from the frontal midline. They were instructed to try to increase the level of frontal midline theta. The neurofeedback group received feedback based upon their own brain activity while the sham group received the feedback, not from their own brain activity but from the activity of their paired experimental participant. At the beginning and end of the 8 training sessions the participants were measured for executive functioning including memory, sustained attention, and focused attention.

 

They found that the neurofeedback produced a significant progressive increase in frontal midline theta power over the 8 sessions while the sham control had none. The neurofeedback group also had a significant improvement in short-term memory while the sham group had a significant deterioration in short-term memory. While the neurofeedback group was performing the short-term memory task, they had a significant increase in gamma activity in the EEG which was absent in the sham group.

 

A strength of the present study is that the control condition was active and the participants went through the same protocol as the neurofeedback participants with the sole difference being that the neurofeedback participants received feedback on their own brain activity while the sham group did not. This is an excellent control condition that accounts for many potential sources of confounding. So, the results can be interpreted as due to the neurofeedback and not some other spurious cause.

 

High levels of midline frontal theta power in the EEG is characteristic of experienced meditators. It can be speculated that the neurofeedback procedure by increasing midline frontal theta power produce brain activity in novices similar to that produced by years of meditation training. The improved short-term memory is also observed in expert meditators. This suggests that neurofeedback may be used to rapidly improve meditation. It remains for future studies to examine whether the increased midline frontal theta power is associated with increased depth of meditation. If so, this may be a method to rapidly improve meditation in novices.

 

So, neurofeedback in novice meditators can alter brain activity like that observed in expert meditators.

 

“Effective meditation practice is associated with several specific patterns of brain waves. This is one reason why neurofeedback is so effective, you can literally teach your brain to take on the right brain wave pattern for the style of meditation you are trying to practice.” – James V. Hardt

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Google+ https://plus.google.com/106784388191201299496/posts and on Twitter @MindfulResearch

 

Study Summary

 

Brandmeyer, T., & Delorme, A. (2020). Closed-Loop Frontal Midlineθ Neurofeedback: A Novel Approach for Training Focused-Attention Meditation. Frontiers in human neuroscience, 14, 246. https://doi.org/10.3389/fnhum.2020.00246

 

Abstract

Cortical oscillations serve as an index of both sensory and cognitive processes and represent one of the most promising candidates for training and targeting the top-down mechanisms underlying executive functions. Research findings suggest that theta (θ) oscillations (3–7 Hz) recorded over frontal-midline electrodes are broadly associated with a number of higher-order cognitive processes and may serve as the mechanistic backbone for cognitive control. Frontal-midline theta (FMθ) oscillations have also been shown to inversely correlate with activity in the default mode network (DMN), a network in the brain linked to spontaneous thought processes such as mind-wandering and rumination. In line with these findings, we previously observed increased FMθ oscillations in expert meditation practitioners during reported periods of focused-attention meditation practice when compared to periods of mind-wandering. In an effort to narrow the explanatory gap by directly connecting observed neurophysiological activity in the brain to the phenomenological nature of reported experience, we designed a methodologically novel and adaptive neurofeedback protocol with the aim of modulating FMθ while having meditation novice participants implement breath-focus strategies derived from focused-attention mediation practices. Participants who received eight sessions of the adaptive FMθ-meditation neurofeedback protocol were able to significantly modulate FMθ over frontal electrodes using focused-attention meditation strategies relative to their baseline by the end of the training and demonstrated significantly faster reaction times on correct trials during the n-back working memory task assessed before and after the FMθ-meditation neurofeedback protocol. No significant differences in frontal theta activity or behavior were observed in the active control participants who received age and gender matched sham neurofeedback. These findings help lay the groundwork for the development of brain training protocols and neurofeedback applications that aim to train features of the mental states and traits associated with focused-attention meditation.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7344173/

 

Improve the Psychological Health of Cancer Patients with Mindfulness Taught over the Internet

psyjdc Leave a comment

Improve the Psychological Health of Cancer Patients with Mindfulness Taught over the Internet

 

By John M. de Castro, Ph.D.

 

“some of the most difficult elements of the cancer experience are very well-suited to a mindfulness practice.” – Linda Carlson

 

Receiving a diagnosis of cancer has a huge impact on most people. Feelings of depression, anxiety, and fear are very common and are normal responses to this life-changing and potentially life-ending experience. But cancer diagnosis is not necessarily a death sentence. Over half of the people diagnosed with cancer are still alive 10 years later and this number is rapidly increasing. But, surviving cancer carries with it a number of problems. Anxiety, depression, fatigue and insomnia are common symptoms in the aftermath of surviving cancer. These symptoms markedly reduce the quality of life of the patients.

 

Mindfulness training has been shown to help with cancer recovery and help to relieve chronic pain. It can also help treat the residual physical and psychological symptoms, including stress,  sleep disturbance, fear, and anxiety and depression. The vast majority of the mindfulness training techniques, however, require a trained therapist. This results in costs that many clients can’t afford. In addition, the participants must be available to attend multiple sessions at particular scheduled times that may or may not be compatible with their busy schedules and at locations that may not be convenient.

 

As an alternative, mindfulness training over the internet have been developed. These have tremendous advantages in decreasing costs, making training schedules much more flexible, and eliminating the need to go repeatedly to specific locations. In addition, research has indicated that mindfulness training online can be effective for improving the health and well-being of the participants. The research has been accumulating. So, it makes sense to step back and summarize what has been learned about the effectiveness of mindfulness training over the internet in treating the psychological symptoms of cancer patients.

 

In today’s Research News article “Mindfulness-Based Programs for Patients With Cancer via eHealth and Mobile Health: Systematic Review and Synthesis of Quantitative Research.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7704284/ ) Matis and colleagues review, summarize, and perform a meta-analysis on the published research studies on the effectiveness of mindfulness training over the internet in treating the psychological symptoms of cancer patients. They identified 24 published research studies including at least 4 weeks of mindfulness training delivered over the internet.

 

They report that the published research studies found that mindfulness training delivered over the internet to cancer patients produced significant decreases in stress, anxiety, depression, pain, fatigue, and sleep problems, and significant increases in mindfulness, posttraumatic growth, and some parameters of general health. In the few studies where long-term follow-up measures were obtained the effects were maintained.

 

These are very promising results that suggest that mindfulness training over the internet is a safe and effective treatment for the psychological issues common in cancer survivors. Mindfulness training, in general, has been shown in a large number of previous studies o be effective in reducing stress, anxiety, depression, pain, fatigue, and sleep problems, and significant increases in mindfulness, posttraumatic growth, and some parameters of general health. So, the present study simply extends these findings to patients with cancer who receive mindfulness training over the internet.

 

These results are important as good mental health, particularly the ability to cope with stress, are predictors of good health outcomes. In addition, the fact that the interventions were provided over the internet allows for cost-effective and convenient delivery to patients. This makes participation and compliance more likely and effective. Hence, internet-based mindfulness training may help relieve the psychological suffering of patients diagnosed with cancer and should be included in their treatment plan.

 

So, improve the psychological health of cancer patients with mindfulness taught over the internet.

 

“Both MBCT and eMBCT significantly reduced fear of cancer recurrence and rumination and increased mental health–related quality of life, mindfulness skills, and positive mental health.” – Matthew Stenger

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Google+ https://plus.google.com/106784388191201299496/posts and on Twitter @MindfulResearch

 

Study Summary

 

Matis, J., Svetlak, M., Slezackova, A., Svoboda, M., & Šumec, R. (2020). Mindfulness-Based Programs for Patients With Cancer via eHealth and Mobile Health: Systematic Review and Synthesis of Quantitative Research. Journal of medical Internet research, 22(11), e20709. https://doi.org/10.2196/20709

 

Abstract

Background

eHealth mindfulness-based programs (eMBPs) are on the rise in complex oncology and palliative care. However, we are still at the beginning of answering the questions of how effective eMBPs are and for whom, and what kinds of delivery modes are the most efficient.

Objective

This systematic review aims to examine the feasibility and efficacy of eMBPs in improving the mental health and well-being of patients with cancer, to describe intervention characteristics and delivery modes of these programs, and to summarize the results of the included studies in terms of moderators, mediators, and predictors of efficacy, adherence, and attrition.

Methods

In total, 4 databases (PubMed, PsycINFO, Scopus, and Web of Knowledge) were searched using relevant search terms (eg, mindfulness, program, eHealth, neoplasm) and their variations. No restrictions were imposed on language or publication type. The results of the efficacy of eMBPs were synthesized through the summarizing effect estimates method.

Results

A total of 29 published papers describing 24 original studies were included in this review. In general, the results indicate that eMBPs have the potential to reduce the levels of stress, anxiety, depression, fatigue, sleep problems, and pain, and improve the levels of mindfulness, posttraumatic growth, and some parameters of general health. The largest median of Cohen d effect sizes were observed in reducing anxiety and depression (within-subject: median −0.38, IQR −0.62 to −0.27; between-group: median −0.42, IQR −0.58 to −0.22) and facilitating posttraumatic growth (within-subject: median 0.42, IQR 0.35 to 0.48; between-group: median 0.32, IQR 0.22 to 0.39). The efficacy of eMBP may be comparable with that of parallel, face-to-face MBPs in some cases. All studies that evaluated the feasibility of eMBPs reported that they are feasible for patients with cancer. Potential moderators, mediators, and predictors of the efficacy, attrition, and adherence of eMBPs are discussed.

Conclusions

Although the effects of the reviewed studies were highly heterogeneous, the review provides evidence that eMBPs are an appropriate way for mindfulness practice to be delivered to patients with cancer. Thus far, existing eMBPs have mostly attempted to convert proven face-to-face mindfulness programs to the eHealth mode. They have not yet fully exploited the potential of eHealth technology.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7704284/

 

Improve Refractory Depression with Mindfulness

psyjdc Leave a comment

Improve Refractory Depression with Mindfulness

 

By John M. de Castro, Ph.D.

 

“Mindfulness and other meditations, particularly combined with cognitive therapy, work just as well for anxiety or depression as the medications do, but they don’t have those side effects,” – Daniel Goleman

 

Clinically diagnosed depression is the most common mental illness, affecting over 6% of the population. Major depression can be quite debilitating. Depression can be difficult to treat and is usually treated with anti-depressive medication. But, of patients treated initially with drugs only about a third attained remission of the depression. After repeated and varied treatments including drugs, therapy, exercise etc. only about two thirds of patients attained remission. But drugs often have troubling side effects and can lose effectiveness over time. In addition, many patients do not respond to treatment. This is called refractory depression.

 

Mindfulness training has been shown to be an effective treatment for depression and its recurrence and even in the cases where drugs fail. Dialectical Behavior Therapy (DBT)  is a mindfulness-based therapeutic technique that produces behavior change by focusing on changing the thoughts and emotions that precede problem behaviors, as well as by solving the problems faced by individuals that contribute to problematic thoughts, feelings and behaviors. In DBT five core skills are practiced; mindfulness, distress tolerance, emotion regulation, the middle path, and interpersonal effectiveness. DBT has been shown to be effective in treating depression. So, it makes sense, then, to study the effectiveness of Dialectical Behavior Therapy (DBT) for refractory depression.

 

In today’s Research News article “Refractory depression – mechanisms and efficacy of radically open dialectical behaviour therapy (RefraMED): findings of a randomised trial on benefits and harms.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7282863/ ) Lynch and colleagues recruited adults with refractory major depressive disorder and randomly assigned them to either treatment as usual or to receive 29 weekly 1 hour sessions of Dialectical Behavior Therapy (DBT). They were measured before and after treatment and 5 months and 11 months later for depressive symptoms, psychosocial functioning, suicidal ideation, psychological inflexibility, emotional coping, and social support.

 

They found that compared to baseline both groups continuously improved with reduced depressive symptoms, but the group that received Dialectical Behavior Therapy (DBT) demonstrated significantly greater reductions but they were only statistically significant immediately after treatment but not at the 5 and 11 month follow ups. Also remission rates were higher in the DBT group. In addition, the DBT group had significantly greater psychological flexibility, emotional coping after treatment and all follow-up measurements.

 

These are interesting results that suggest that Dialectical Behavior Therapy (DBT) is an effective treatment for refractory major depressive disorder. In other words, it helps the patients who are not helped by any other treatments; the most difficult to treat patients. The fact that the relief of depressive symptoms is not significantly different from the treatment as usual group at the 5 and 11-month follow ups suggests that booster session may be necessary. But it should be recognized that the patients were markedly improved relative to their baselines. It was just that the treatment as usual group improved as well. So, the DBT produced a large and sustained reduction in depression in these refractory patients.

 

So, improve refractory depression with mindfulness.

 

“Meditation helped me realize that the misery I feel is temporary. It sucks, but if I can wade my way through it, I know I’ll probably have a better day tomorrow.” – Stacey Neglia

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Google+ https://plus.google.com/106784388191201299496/posts and on Twitter @MindfulResearch

 

Study Summary

 

Lynch, T. R., Hempel, R. J., Whalley, B., Byford, S., Chamba, R., Clarke, P., Clarke, S., Kingdon, D. G., O’Mahen, H., Remington, B., Rushbrook, S. C., Shearer, J., Stanton, M., Swales, M., Watkins, A., & Russell, I. T. (2020). Refractory depression – mechanisms and efficacy of radically open dialectical behaviour therapy (RefraMED): findings of a randomised trial on benefits and harms. The British journal of psychiatry : the journal of mental science, 216(4), 204–212. https://doi.org/10.1192/bjp.2019.53

 

Abstract

Background

Individuals with depression often do not respond to medication or psychotherapy. Radically open dialectical behaviour therapy (RO DBT) is a new treatment targeting overcontrolled personality, common in refractory depression.

Aims

To compare RO DBT plus treatment as usual (TAU) for refractory depression with TAU alone (trial registration: ISRCTN 85784627).

Method

RO DBT comprised 29 therapy sessions and 27 skills classes over 6 months. Our completed randomised trial evaluated RO DBT for refractory depression over 18 months in three British secondary care centres. Of 250 adult participants, we randomised 162 (65%) to RO DBT. The primary outcome was the Hamilton Rating Scale for Depression (HRSD), assessed masked and analysed by treatment allocated.

Results

After 7 months, immediately following therapy, RO DBT had significantly reduced depressive symptoms by 5.40 points on the HRSD relative to TAU (95% CI 0.94–9.85). After 12 months (primary end-point), the difference of 2.15 points on the HRSD in favour of RO DBT was not significant (95% CI –2.28 to 6.59); nor was that of 1.69 points on the HRSD at 18 months (95% CI –2.84 to 6.22). Throughout RO DBT participants reported significantly better psychological flexibility and emotional coping than controls. However, they reported eight possible serious adverse reactions compared with none in the control group.

Conclusions

The RO DBT group reported significantly lower HRSD scores than the control group after 7 months, but not thereafter. The imbalance in serious adverse reactions was probably because of the controls’ limited opportunities to report these.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7282863/

 

Tai Chi Practice Changes the Brain Differently than Walking

psyjdc Leave a comment

Tai Chi Practice Changes the Brain Differently than Walking

 

By John M. de Castro, Ph.D.

 

“tai chi appears to improve executive function—the ability to multitask, manage time, and make decisions—in people without any cognitive decline.” – Harvard Health

 

The aging process involves a systematic progressive decline in every system in the body, the brain included. The elderly frequently have problems with attention, thinking, and memory abilities, known as mild cognitive impairment. An encouraging new development is that mindfulness practices such as meditation training and mindful movement practices can significantly reduce these declines in cognitive ability. In addition, it has been found that mindfulness practices reduce the deterioration of the brain that occurs with aging restraining the loss of neural tissue. Indeed, the brains of practitioners of meditation,  yoga, and Tai Chi have been found to degenerate less with aging than non-practitioners.

 

Tai Chi has been practiced for thousands of years with benefits for health and longevity. Tai Chi training is designed to enhance function and regulate the activities of the body through regulated breathing, mindful concentration, and gentle movements. Tai Chi practice has been found to be effective for an array of physical and psychological issues. Tai Chi has been shown to help the elderly improve attention, balance, reducing falls, arthritis, cognitive function, memory, and reduce age related deterioration of the brain. So, it makes sense to further study the effects of Tai Chi training on the brains of older adults.

 

In today’s Research News article “Differential Effects of Tai Chi Chuan (Motor-Cognitive Training) and Walking on Brain Networks: A Resting-State fMRI Study in Chinese Women Aged 60.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7151113/ ) Yue and colleagues recruited older women (over 60 years of age) who were long-term practitioners of Tai Chi or walking and scanned their brains with functional Magnetic Imaging (fMRI).

 

They examined 3 brain networks, the Default Mode Network, the Sensory Motor Network, and the Visual Network and found significant differences in the functional connectivity within these networks between the Tai Chi and walking groups. This suggests that the two exercises change the brains information processing in these women. They suggest that the brains of the older women went through neuroplastic changes as a result of their practices with different changes in different systems depending on the exercise.

 

There is evidence that physical fitness reduces the likelihood of dementia and Tai Chi practice has been shown to reduce the likelihood or severity of age-related cognitive decline. The observed changes, particularly in the Default Mode Network, which is known to be associated with memory and thinking, may underlie the effectiveness of these exercises in reducing the incidence of age-related cognitive decline and dementia. It remains for future research to determine which of the observed changes in the brains are responsible for retaining mental ability with aging.

 

Tai Chi practice is not strenuous, involves slow gentle movements, and is safe, having no appreciable side effects, it is appropriate for all ages including the elderly and for individuals with illnesses that limit their activities or range of motion. It can also be practiced without professional supervision and in groups making it inexpensive to deliver and fun to engage in. This makes Tai Chi practice an excellent means to maintain fitness with aging and help maintain a fit mind and body.

 

So, Tai Chi practice changes the brain differently than walking.

 

“Scientists . . . found increases in brain volume and improvements on tests of memory and thinking in Chinese seniors who practiced Tai Chi.” – ScienceDaily

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Google+ https://plus.google.com/106784388191201299496/posts and on Twitter @MindfulResearch

 

Study Summary

 

Yue, C., Zhang, Y., Jian, M., Herold, F., Yu, Q., Mueller, P., Lin, J., Wang, G., Tao, Y., Zhang, Z., & Zou, L. (2020). Differential Effects of Tai Chi Chuan (Motor-Cognitive Training) and Walking on Brain Networks: A Resting-State fMRI Study in Chinese Women Aged 60. Healthcare (Basel, Switzerland), 8(1), 67. https://doi.org/10.3390/healthcare8010067

 

Abstract

Background: This cross-sectional study aimed to investigate whether a long-term engagement in different types of physical exercise may influence resting-state brain networks differentially. In particular, we studied if there were differences in resting-state functional connectivity measures when comparing older women who are long-term practitioners of tai chi chuan or walking. Method: We recruited 20 older women who regularly practiced tai chi chuan (TCC group), and 22 older women who walked regularly (walking group). Both the TCC group and the walking group underwent a resting-state functional magnetic resonance imaging (rs-fMRI) scan. The acquired rs-fMRI data of all participants were analyzed using independent component analysis. Age and years of education were added as co-variables. Results: There were significant differences in default network, sensory-motor network, and visual network of rs-fMRI between the TCC group and walking group (p < 0.05). Conclusions: The findings of the current study suggested that long-term practice of different types of physical exercises (TCC vs. walking) influenced brain functional networks and brain functional plasticity of elderly women differentially. Our findings encourage further research to investigate whether those differences in resting-state functional connectivity as a function of the type of physical exercise have implications for the prevention of neurological diseases.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7151113/

 

Poor Mental Health in Patients with Fibromyalgia is Associated with Brain Systems

psyjdc Leave a comment

Poor Mental Health in Patients with Fibromyalgia is Associated with Brain Systems

 

By John M. de Castro, Ph.D.

 

“practicing mindfulness techniques may be a low-cost, side effect free option for people wishing to reduce the severity of their fibromyalgia.” – Kim Jones

 

Fibromyalgia is a mysterious disorder whose causes are unknown. It is very common affecting over 5 million people in the U.S., about 2% of the population with about 7 times more women affected than men. It is characterized by widespread pain, abnormal pain processing, sleep disturbance, and fatigue that lead to psychological distress. Fibromyalgia may also have morning stiffness, tingling or numbness in hands and feet, headaches, including migraines, irritable bowel syndrome, sleep disturbances, thinking and memory problems, and painful menstrual periods. The symptoms are so severe and debilitating that about half the patients are unable to perform routine daily functions and about a third have to stop work. Although it is not itself fatal, suicide rates are higher in fibromyalgia sufferers. Clearly, fibromyalgia greatly reduces the quality of life of its’ sufferers.

 

There are no completely effective treatments for fibromyalgia. Symptoms are generally treated with pain relievers, antidepressant drugs and exercise. But these only reduce the severity of the symptoms and do not treat the disease directly. Mindfulness practices have also been shown to be effective in reducing pain from fibromyalgia. Some of the effects of mindfulness practices are to alter thought processes, changing what is thought about. In terms of pain, mindfulness training, by focusing attention on the present moment has been shown to reduce worry and catastrophizing. Pain is increased by worry about the pain and the expectation of greater pain in the future. Brain systems are involved in pain processing. It is not known, however, what brain systems may be involved in the psychological effects of fibromyalgia.

 

In today’s Research News article “The Bed Nucleus of the Stria Terminalis as a Brain Correlate of Psychological Inflexibility in Fibromyalgia.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7074535/ ) Feliu-Soler and colleagues recruited adult women who were diagnosed with fibromyalgia and assigned them to either treatment as usual or to receive and 8-week program of Mindfulness-Based Stress Reduction (MBSR). They were measured before and after the program for psychological inflexibility in pain, functional impairment, anxiety, depression, perceived stress, pain catastrophizing, mindfulness, and self-compassion. They also underwent measurements of the gray matter volume in the brain with Magnetic Resonance Imaging (MRI).

 

They found that the higher the levels of psychological inflexibility in pain, the higher the gray matter volume of the bed nucleus of the stria terminalis (BNST). Further they found that the higher the gray matter volume of the BNST the higher the levels of functional impairment, anxiety, depression, perceived stress, and pain catastrophizing and the lower the levels of mindfulness and self-compassion. The Mindfulness-Based Stress Reduction (MBSR) program did not significantly alter the BNST volume or psychological inflexibility in pain.

 

These results are correlative and as such caution must be exercised in causal inferences. It was disappointing that mindfulness training did not produce a change in either psychological inflexibility or BNST volume. But the results are clear that the gray matter volume of the bed nucleus of the stria terminalis (BNST) is associated with poor mental health in patients with fibromyalgia. This brain structure is associated with physiological and psychological responses to stress. Since, the constant pain associated with fibromyalgia is very stressful it is not surprising that enlargement of the BNST would be associated with poor mental health in these patients.

 

So, poor mental health in patients with fibromyalgia is associated with brain systems.

 

“being overly observant of symptoms or trying to avoid pain can actually contribute towards the development of fibromyalgia and worsen the existing symptoms. Mindfulness practice can actually change the way you relate to your pain, . . the mindfulness group showed less avoidant and hypervigilance behaviour, supporting the idea that mindfulness encourages a non-judgemental and accepting relationship with pain, rather than trying to push it away.” – Vidyamala Burch

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Google+ https://plus.google.com/106784388191201299496/posts and on Twitter @MindfulResearch

 

Study Summary

 

Feliu-Soler, A., Martínez-Zalacaín, I., Pérez-Aranda, A., Borràs, X., Andrés-Rodríguez, L., Sanabria-Mazo, J. P., Fayed, N., Stephan-Otto, C., Núñez, C., Soriano-Mas, C., & Luciano, J. V. (2020). The Bed Nucleus of the Stria Terminalis as a Brain Correlate of Psychological Inflexibility in Fibromyalgia. Journal of clinical medicine, 9(2), 374. https://doi.org/10.3390/jcm9020374

 

Abstract

This study explored the brain structural correlates of psychological flexibility (PF) as measured with the Psychological Inflexibility in Pain Scale (PIPS) in patients with fibromyalgia (FM). Structural magnetic resonance imaging data from 47 FM patients were used to identify Gray Matter Volume (GMV) alterations related to PIPS scores. Brain GMV clusters related to PIPS were then correlated with clinical and cognitive variables to further explore how emerged brain clusters were intertwined with FM symptomatology. Longitudinal changes in PIPS-related brain clusters values were assessed by studying pre–post data from 30 patients (15 allocated to a mindfulness-based stress reduction (MBSR) program and 15 to treatment-as-usual). Changes in PIPS-related brain clusters were also explored in participants showing greater/lower longitudinal changes in PIPS scores. PIPS scores were positively associated with GMV in a bilateral cluster in the ventral part of the bed nucleus of the stria terminalis (BNST). Significant associations between BNST cluster with functional impairment, depressive symptomatology, perceived stress and the nonjudging mindfulness facet were observed. Participants reporting greater pre–post increases in PIPS scores showed greater increases in BNST cluster values. These findings contribute to the understanding on the neurobiological bases of PF in FM and encourage further explorations of the role of the BNST in chronic pain.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7074535/

 

Reduce Current Depressive Symptoms with Mindfulness

psyjdc Leave a comment

Reduce Current Depressive Symptoms with Mindfulness

 

By John M. de Castro, Ph.D.

 

“Depression is not only the most common mental illness, it’s also one of the most tenacious. . . But a growing body of research is pointing to an intervention that appears to help prevent relapse by altering thought patterns without side effects: mindfulness-based cognitive therapy, or MBCT.” – Stacy Lu

 

Clinically diagnosed depression is the most common mental illness, affecting over 6% of the population. Depression can be difficult to treat and is usually treated with anti-depressive medication. But, of patients treated initially with drugs, only about a third attained remission of the depression. But drugs often have troubling side effects and can lose effectiveness over time. In addition, many patients who achieve remission have relapses and recurrences of the depression. Even after remission some symptoms of depression may still be present (residual symptoms).

 

Being depressed and not responding to treatment is a terribly difficult situation. The patients are suffering and nothing appears to work to relieve their intense depression. Suicide becomes a real possibility. So, it is imperative that other treatments be identified that can relieve the suffering.

 

Mindfulness training is an alternative treatment for depression. It has been shown to be an effective treatment for depression and its recurrence and even in the cases where drugs fail. Mindfulness-Based Cognitive Therapy (MBCT) was specifically developed to treat depression. MBCT involves mindfulness training, containing sitting, walking and body scan meditations, and cognitive therapy that attempts to teach patients to distinguish between thoughts, emotions, physical sensations, and behaviors, and to recognize irrational thinking styles and how they affect behavior. MBCT has been found to be effective in treating depression. The research is accumulating. So, it makes sense to take a look at what has been learned.

 

In today’s Research News article “Mindfulness-based cognitive therapy for the treatment of current depressive symptoms: a meta-analysis.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6687569/ ) Goldberg and colleagues review, summarize, and perform a meta-analysis of the published randomized controlled trials of the effectiveness of Mindfulness-Based Cognitive Therapy (MBCT) for current depression. They identified 13 published controlled studies.

 

They report that the published studies found that Mindfulness-Based Cognitive Therapy (MBCT)  produced significant improvements in depressive symptoms when compared to non-specific control conditions; those that did not suggest therapeutic effects. On the other hand, compared to control conditions in which the condition was portrayed as therapeutic, MBCT produced equivalent reductions in depressive symptoms. They also report that the improvements do not last and were no longer present at follow-ups as long as 6 months post-treatment.

 

The results suggest that Mindfulness-Based Cognitive Therapy (MBCT)  is a safe and effective treatment for current depressive symptoms. But it does not appear to be superior to other therapies and does not have lasting efficacy. This suggests that further research needs to be performed to determine what are the components of therapy that produce improvements and which do not. They also suggest that booster treatments periodically after the primary treatment may be needed to maintain effectiveness.

 

So, reduce current depressive symptoms with mindfulness.

 

“Mindfulness-Based Cognitive Therapy (MBCT) is designed to help people who suffer repeated bouts of depression and chronic unhappiness. It combines the ideas of cognitive therapy with meditative practices and attitudes based on the cultivation of mindfulness.” – MBCT.com

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Google+ https://plus.google.com/106784388191201299496/posts and on Twitter @MindfulResearch

 

Study Summary

Goldberg, S. B., Tucker, R. P., Greene, P. A., Davidson, R. J., Kearney, D. J., & Simpson, T. L. (2019). Mindfulness-based cognitive therapy for the treatment of current depressive symptoms: a meta-analysis. Cognitive behaviour therapy, 48(6), 445–462. https://doi.org/10.1080/16506073.2018.1556330

 

Abstract

Mindfulness-based cognitive therapy (MBCT) appears to be a promising intervention for the prevention of relapse in major depressive disorder, but its efficacy in patients with current depressive symptoms is less clear. Randomized clinical trials of MBCT for adult patients with current depressive symptoms were included (k = 13, N = 1,046). Comparison conditions were coded based on whether they were intended to be therapeutic (specific active controls) or not (non-specific controls). MBCT was superior to non-specific controls at post-treatment (k = 10, d = 0.71, 95% CI [0.47, 0.96]), although not at longest follow-up (k = 2, d = 1.47, [−0.71, 3.65], mean follow-up = 5.70 months across all studies with follow-up). MBCT did not differ from other active therapies at post-treatment (k = 6, d = 0.002, [−0.43, 0.44]) and longest follow-up (k = 4, d = 0.26, [−0.24, 0.75]). There was some evidence that studies with higher methodological quality showed smaller effects at post-treatment, but no evidence that effects varied by inclusion criterion. The impact of publication bias appeared minimal. MBCT seems to be efficacious for samples with current depressive symptoms at post-treatment, although a limited number of studies tested the long-term effects of this therapy.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6687569/

 

Improve Mental Health and Blood Biomarker Levels with Meditation and Yoga

psyjdc Leave a comment

Improve Mental Health and Blood Biomarker Levels with Meditation and Yoga

 

By John M. de Castro, Ph.D.

 

“The main purpose of meditation is to access, recognize and enhance the positive qualities of mind. The more we can do this, the less we need to rely on external situations for our happiness and the more we can rely on the natural, positive qualities of mind: love, contentment, well-being and peace.” – Trinlay Rinpoche

 

Over the last several decades, research and anecdotal experiences have accumulated an impressive evidential case that the development of mindfulness has positive benefits for the individual’s mental, physical, and spiritual life. Mindfulness appears to be beneficial both for healthy people and for people suffering from a myriad of mental and physical illnesses. It appears to be beneficial across ages, from children to the elderly. And it appears to be beneficial across genders, personalities, race, and ethnicity. The breadth and depth of benefits is unprecedented. There is no other treatment or practice that has been shown to come anyway near the range of mindfulness’ positive benefits.

 

It is not known exactly how mindfulness training produces these benefits. It is possible that one mechanism is by altering blood bourn hormonal levels. In today’s Research News article “Inner Engineering Practices and Advanced 4-day Isha Yoga Retreat Are Associated with Cannabimimetic Effects with Increased Endocannabinoids and Short-Term and Sustained Improvement in Mental Health: A Prospective Observational Study of Meditators.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7293737/ ) Sadhasivam and colleagues recruited healthy adults and had them attend a 4-day intensive training in yoga and meditation. Before and after the training and 1 month later they were measured for mindfulness, happiness, anxiety, depression, and psychological well-being. They also drew blood before and after training and assayed it for the brain-derived neurotrophic factor (BDNF), and the biomarkers of Endocannabinoids, (anandamide, 2-arachidonoylglycerol (2-AG), 1-arachidonoylglycerol (1-AG), docosatetraenoylethanolamide (DEA), and oleoylethanolamide (OLA)).

 

They found that after the training there were significant decreases in anxiety and depression and significant increases in mindfulness, happiness, and psychological well-being. These changes were maintained at the 1-month follow-up. There were also significant increases in all of the blood biomarkers of Endocannabinoids and also brain-derived neurotrophic factor (BDNF).

 

It should be kept in mind that this was a pilot study that did not have a control, comparison, condition. So, the results might have been due to a number of confounding factors rather than the training itself. But previous controlled research has convincingly demonstrated that mindfulness training increases happiness, and psychological well-being and decreases anxiety and depression. So, these changes were likely due to the training.

 

There were also novel findings in the present study that Endocannabinoids and brain-derived neurotrophic factor (BDNF) were significantly increased by the training. These provide objective measures of the subjective reports of psychological improvements. Endocannabinoids in the blood are associated with positive mood states. BDNF is a neurotrophic factor that is thought to signal neuroplastic changes in the nervous system. Mindfulness training has been previously shown to produce neuroplastic changes in the brain. So, the increases in these biomarkers indicate that the training not only improves the psychological health of the participants but also alters the brain, perhaps making the improvements longer lasting. This suggests a potential mechanism for the ability of meditation and yoga to improve mood, by increasing hormones that improve mood.

 

So, improve mental health and blood biomarker levels with meditation and yoga.

 

“The more you practice invoking states of well-being, the more available they are. Use the following practice to teach your mind and body to experience joy in the moment. As you invite happiness into your life in this way, you will have more access to a joyful life.” – Yoga Journal

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Google+ https://plus.google.com/106784388191201299496/posts and on Twitter @MindfulResearch

 

Study Summary

 

Sadhasivam, S., Alankar, S., Maturi, R., Vishnubhotla, R. V., Mudigonda, M., Pawale, D., Narayanan, S., Hariri, S., Ram, C., Chang, T., Renschler, J., Eckert, G., & Subramaniam, B. (2020). Inner Engineering Practices and Advanced 4-day Isha Yoga Retreat Are Associated with Cannabimimetic Effects with Increased Endocannabinoids and Short-Term and Sustained Improvement in Mental Health: A Prospective Observational Study of Meditators. Evidence-based complementary and alternative medicine : eCAM, 2020, 8438272. https://doi.org/10.1155/2020/8438272

 

Abstract

Background

Anxiety and depression are common in the modern world, and there is growing demand for alternative therapies such as meditation. Meditation can decrease perceived stress and increase general well-being, although the physiological mechanism is not well-characterized. Endocannabinoids (eCBs), lipid mediators associated with enhanced mood and reduced anxiety/depression, have not been previously studied as biomarkers of meditation effects. Our aim was to assess biomarkers (eCBs and brain-derived neurotrophic factor [BDNF]) and psychological parameters after a meditation retreat.

Methods

This was an observational pilot study of adults before and after the 4-day Isha Yoga Bhava Spandana Program retreat. Participants completed online surveys (before and after retreat, and 1 month later) to assess anxiety, depression, focus, well-being, and happiness through validated psychological scales. Voluntary blood sampling for biomarker studies was done before and within a day after the retreat. The biomarkers anandamide, 2-arachidonoylglycerol (2-AG), 1-arachidonoylglycerol (1-AG), docosatetraenoylethanolamide (DEA), oleoylethanolamide (OLA), and BDNF were evaluated. Primary outcomes were changes in psychological scales, as well as changes in eCBs and BDNF.

Results

Depression and anxiety scores decreased while focus, happiness, and positive well-being scores increased immediately after retreat from their baseline values (P < 0.001). All improvements were sustained 1 month after BSP. All major eCBs including anandamide, 2-AG, 1-AG, DEA, and BDNF increased after meditation by > 70% (P < 0.001). Increases of ≥20% in anandamide, 2-AG, 1-AG, and total AG levels after meditation from the baseline had weak correlations with changes in happiness and well-being.

Conclusions

A short meditation experience improved focus, happiness, and positive well-being and reduced depression and anxiety in participants for at least 1 month. Participants had increased blood eCBs and BDNF, suggesting a role for these biomarkers in the underlying mechanism of meditation. Meditation is a simple, organic, and effective way to improve well-being and reduce depression and anxiety.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7293737/

 

Improve Attention and the Brain Systems Underlying Attention with Meditation

psyjdc Leave a comment

Improve Attention and the Brain Systems Underlying Attention with Meditation

 

By John M. de Castro, Ph.D.

 

“the primary outcome of meditation may be to control attention and internal state in the face of the barrage of stimuli, negative and otherwise, that we experience everyday.” – Aaron D. Nitzkin

 

One of the primary effects of mindfulness training is an improvement in the ability to pay attention to the task at hand and ignore interfering stimuli. This is an important consequence of mindfulness training and produces improvements in thinking, reasoning, and creativity. The importance of heightened attentional ability to the individual’s ability to navigate the demands of complex modern life cannot be overstated. It helps in school, at work, in relationships, or simply driving a car. As important as attention is, it’s surprising that little is known about the mechanisms by which mindfulness improves attention

 

There is evidence that mindfulness training improves attention by altering the brain. It appears That mindfulness training increases the size, connectivity, and activity of areas of the brain that are involved in paying attention. A common method to study the activity of the nervous system is to measure the electrical signal at the scalp above brain regions. Changes in this activity are measurable with mindfulness training.

 

One method to observe attentional processing in the brain is to measure the changes in the electrical activity that occur in response to specific stimuli. These are called event-related, or evoked, potentials or ERPs. The signal following a stimulus changes over time. The fluctuations of the signal after specific periods of time are thought to measure different aspects of the nervous system’s processing of the stimulus. The P3 response in the evoked potential (ERP) is a positive going electrical response occurring between a 2.5 to 5 tenths of a second following the target stimulus presentation. The P3 component is thought to reflect attentional processing.

 

In today’s Research News article “Focused attention meditation training modifies neural activity and attention: longitudinal EEG data in non-meditators.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7304517/ ) Yoshida and colleagues recruited meditation-naïve college students and randomly assigned them to receive either focused meditation training or relaxation training, listening to classical music. The training occurred once a week for 30 minutes for 8 weeks. They also practiced meditation or relaxation at home for 10 minutes per day. They were measured before and after training for mindfulness. They also had brain activity measured with an electroencephalogram (EEG) before, during and after either a 5-minute meditation or relaxation and while performing an oddball task where they were asked to respond whenever a different tone the usual was presented. The evoked potentials to the tone presentations were recorded.

 

They found that in comparison to baseline and the relaxation group, the group that received focused meditation training had significantly faster reactions to the target stimuli during the oddball task. The evoked potentials to the oddball stimuli also demonstrated significantly larger P3 potentials in the meditation group. They also report that during meditation there was a significant increase in theta rhythm power in the EEG particularly in the frontal regions of the brain. They also found that only after 8 weeks of meditation training the greater the increase in theta power during meditation the smaller the increase in P3 magnitude during the oddball task.

 

These results suggest that meditation training produces an improvement in attention both behaviorally during the oddball task and also in the brain’s response to the stimuli. The results demonstrated that these changes occurred only after 8 weeks of meditation training and not after relaxation training. That mindfulness training improves attention and the P3 response in the evoked potential has been demonstrated previously.

 

Hence, meditation training in meditation-naïve college students improves attention both in the brain and in behavior. This improved attention should, although not investigated, produce improved performance in college academics. It remains for future research to investigate this hypothesis.

 

So, improve attention and the brain systems underlying attention with meditation.

 

“Nondirective meditation yields more marked changes in electrical brain wave activity associated with wakeful, relaxed attention, than just resting without any specific mental technique.” – ScienceDaily

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Google+ https://plus.google.com/106784388191201299496/posts and on Twitter @MindfulResearch

 

Study Summary

 

Yoshida, K., Takeda, K., Kasai, T., Makinae, S., Murakami, Y., Hasegawa, A., & Sakai, S. (2020). Focused attention meditation training modifies neural activity and attention: longitudinal EEG data in non-meditators. Social cognitive and affective neuroscience, 15(2), 215–224. https://doi.org/10.1093/scan/nsaa020

 

Abstract

Focused attention meditation (FAM) is a basic meditation practice that cultivates attentional control and monitoring skills. Cross-sectional studies have highlighted high cognitive performance and discriminative neural activity in experienced meditators. However, a direct relationship between neural activity changes and improvement of attention caused by meditation training remains to be elucidated. To investigate this, we conducted a longitudinal study, which evaluated the results of electroencephalography (EEG) during three-stimulus oddball task, resting state and FAM before and after 8 weeks of FAM training in non-meditators. The FAM training group (n = 17) showed significantly higher P3 amplitude during the oddball task and shorter reaction time (RT) for target stimuli compared to that of the control group (n = 20). Furthermore, a significant negative correlation between F4-Oz theta band phase synchrony index (PSI) during FAM and P3 amplitude during the oddball task and a significant positive correlation between F4-Pz theta band PSI during FAM and P3 amplitude during the oddball task were observed. In contrast, these correlations were not observed in the control group. These findings provide direct evidence of the effectiveness of FAM training and contribute to our understanding of the mechanisms underpinning the effects of meditation on brain activity and cognitive performance.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7304517/

 

Improve Stress-Related Neuropsychiatric Disorders with Yoga and Mindfulness

psyjdc Leave a comment

Improve Stress-Related Neuropsychiatric Disorders with Yoga and Mindfulness

 

By John M. de Castro, Ph.D.

 

“Mindfulness training holds promise for treating mood disorders partly because it may lead to changes in patients’ brains, improving connectivity among some brain areas and changing tissue density in key regions, research suggests.” – Stacy Lu

 

Over the last several decades, research and anecdotal experiences have accumulated an impressive evidential case that the development of mindfulness has positive benefits for the individual’s mental, physical, and spiritual life. Mindfulness appears to be beneficial both for healthy people and for people suffering from a myriad of mental and physical illnesses. It appears to be beneficial across ages, from children, to adolescents, to the elderly. And it appears to be beneficial across genders, personalities, race, and ethnicity. The breadth and depth of benefits is unprecedented. There is no other treatment or practice that has been shown to come anyway near the range of mindfulness’ positive benefits.

 

Meditation and yoga training have been shown to be effective for a large array of medical and psychiatric conditions, either stand-alone or in combination with more traditional therapies. Meditation and yoga appear to improve the individual’s ability to cope with stress and stress is the source of or aggravates many mental disorders. There are a number of ways that meditation and yoga practices produce these benefits, including changes to the brain and physiology. It is useful to review and summarize what has been discovered regarding how meditation and yoga practices improve mental disorders.

 

In today’s Research News article “Role of Yoga and Meditation as Complimentary Therapeutic Regime for Stress-Related Neuropsychiatric Disorders: Utilization of Brain Waves Activity as Novel Tool.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7545749/ ) Kaushik and colleagues review and summarize the published research on the effectiveness of meditation and yoga for the treatment of neuropsychiatric disorders.

 

They report that the published research finds that stress is highly related to anxiety and depression and that meditation and yoga practices, including breathing exercises and postures, significantly reduce perceived stress, anxiety, and depression. They further report that meditation and yoga may produce these improvements by increasing brain activity particularly in the frontal regions of the brain. They also report that meditation and yoga produce very few if any deleterious side effects.

 

Previous research has conclusively demonstrated that mindfulness practices in general are safe and effective in altering the electrical activity of the brain and reducing perceived stress, anxiety, and depression. It can be speculated that meditation and yoga reduce the responses to stress by altering brain activity and this, in turn, produces improvements in anxiety and depression. It remains for future research to investigate this model. Regardless, the employment of meditation and yoga practices for neuropsychiatric conditions has been shown to be safe and effective alternative treatments for the relief of the suffering of these patients.

 

So, improve stress-related neuropsychiatric disorders with yoga and mindfulness.

 

“mindfulness has become a household word, and the psychiatric and psychological literature abound with publications implementing mindfulness as a treatment or self-help tool for everything that ails you.” – John J. Miller

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Google+ https://plus.google.com/106784388191201299496/posts and on Twitter @MindfulResearch

 

Study Summary

 

Kaushik, M., Jain, A., Agarwal, P., Joshi, S. D., & Parvez, S. (2020). Role of Yoga and Meditation as Complimentary Therapeutic Regime for Stress-Related Neuropsychiatric Disorders: Utilization of Brain Waves Activity as Novel Tool. Journal of evidence-based integrative medicine, 25, 2515690X20949451. https://doi.org/10.1177/2515690X20949451

 

Abstract

During recent decades, stress-related neuropsychiatric disorders such as anxiety, depression, chronic tension headache, and migraine have established their stronghold in the lives of a vast number of people worldwide. In order to address this global phenomenon, intensive studies have been carried out leading to the advancement of drugs like anti-depressants, anxiolytics, and analgesics which although help in combating the symptoms of such disorders but also create long-term side effects. Thus, as an alternative to such clinical practices, various complementary therapies such as yoga and meditation have been proved to be effective in alleviating the causes and symptoms of different neuropsychiatric disorders. The role of altered brain waves in this context has been recognized and needs to be pursued at the highest level. Thus, the current study provides a review focused on describing the effects of yoga and meditation on anxiety and depression as well as exploring brain waves as a tool for assessing the potential of these complementary therapies for such disorders.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7545749/

 

Meditation on Different States of Consciousness Produces Different Brain Activity

psyjdc Leave a comment

Meditation on Different States of Consciousness Produces Different Brain Activity

 

By John M. de Castro, Ph.D.

 

“Meditation is just self-directed neuroplasticity. In other words, you are directing the change of your brain by inwardly and consciously directing attention in a particular way. You’re using the mind to change the brain, like a child crafting a Playdough structure.” – Liam McClintock

 

Mindfulness training has been shown to improve health and well-being. It has also been found to be effective for a large array of medical and psychiatric conditions, either stand-alone or in combination with more traditional therapies. How exactly mindfulness practices produce their benefits is unknown. It is known that meditation practice alters states of consciousness and alters brain activity.

 

It is possible to investigate the relationships between consciousness and brain activity. One way is to measure changes in the electroencephalogram (EEG), the rhythmic electrical activity that can be recorded from the scalp. The recorded activity can be separated into frequency bands. Delta activity consists of oscillations in the 0.5-3 cycles per second band. Theta activity in the EEG consists of oscillations in the 4-8 cycles per second band. Alpha activity consists of oscillations in the 8-12 cycles per second band. Beta activity consists of oscillations in the 15-25 cycles per second band while Gamma activity occurs in the 35-45 cycles per second band. Changes in these brain activities can be compared during different forms of meditation with different conscious content.

 

In today’s Research News article “Large effects of brief meditation intervention on EEG spectra in meditation novices.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7649620/ ) Stapleton and colleagues recruited healthy meditation-naïve adults and had them attend a 3-day meditation training workshop where seated meditation to music was practiced 3 times per day. The participants were instructed to focus on different states (emotions, gratitude, surrendering, emotions, future events, oneness, energy, future intentions, and moving energy) during the meditations. During before, during, and after each meditation brain activity was recorded with an electroencephalogram (EEG).

 

They found that from the baseline to the end of the meditations there was a significant global increase in both Theta (4-8 hz.) and Gamma (35-45 hz.) rhythms in the EEG. These activities normally occur during information processing in the brain. They also found that different meditations produced different patterns of EEG activity. Delta activity was increased to the greatest extent by meditations on gratitude, elevated emotions, and energy. Theta activity was increased to the greatest extent by meditations on gratitude, elevated emotions, and future intention. Alpha activity was increased to the greatest extent by meditations on gratitude, oneness, and future intention. Beta activity was increased to the greatest extent by meditations on gratitude, future events, elevated emotions, and future intention. Finally, Gamma activity was increased to the greatest extent by meditations on gratitude, energy, and future intention.

 

These results suggest that different conscious content during meditation is reflected in differences in the activity of the brain in novice meditators. These understandings may be useful in identifying conscious content in real time during meditation. But these results need to be replicated in experienced meditators.

 

So, meditation on different states of consciousness produces different brain activity.

 

“mindfulness . . . has come to describe a meditation-based practice whose aim is to increase one’s sense of being in the present, but it has also been used to describe a nonmeditative state in which subjects set aside their mental distractions to pay greater attention to the here and now.” – Alvin Powell

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Google+ https://plus.google.com/106784388191201299496/posts and on Twitter @MindfulResearch

 

Study Summary

 

Stapleton, P., Dispenza, J., McGill, S., Sabot, D., Peach, M., & Raynor, D. (2020). Large effects of brief meditation intervention on EEG spectra in meditation novices. IBRO reports, 9, 290–301. https://doi.org/10.1016/j.ibror.2020.10.006

 

Abstract

This study investigated the impact of a brief meditation workshop on a sample of 223 novice meditators. Participants attended a three-day workshop comprising daily guided seated meditation sessions using music without vocals that focused on various emotional states and intentions (open focus). Based on the theory of integrative consciousness, it was hypothesized that altered states of consciousness would be experienced by participants during the meditation intervention as assessed using electroencephalogram (EEG). Brainwave power bands patterns were measured throughout the meditation training workshop, producing a total of 5616 EEG scans. Changes in conscious states were analysed using pre-meditation and post-meditation session measures of delta through to gamma oscillations. Results suggested the meditation intervention had large varying effects on EEG spectra (up to 50 % increase and 24 % decrease), and the speed of change from pre-meditation to post-meditation state of the EEG co-spectra was significant (with 0.76 probability of entering end-meditation state within the first minute). There was a main 5 % decrease in delta power (95 % HDI = [−0.07, −0.03]); a global increase in theta power of 29 % (95 % HDI = [0.27, 0.33]); a global increase of 16 % (95 % HDI = [0.13, 0.19]) in alpha power; a main effect of condition, with global beta power increasing by 17 % (95 % HDI = [0.15, 0.19]); and an 11 % increase (95 % HDI = [0.08, 0.14]) in gamma power from pre-meditation to end-meditation. Findings provided preliminary support for brief meditation in altering states of consciousness in novice meditators. Future clinical examination of meditation was recommended as an intervention for mental health conditions particularly associated with hippocampal impairments.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7649620/