Month: November 2019

Improve Episodic Memory and Alter Brain Activity during Memory Retrieval with Mindfulness

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Improve Episodic Memory and Alter Brain Activity during Memory Retrieval with Mindfulness

 

By John M. de Castro, Ph.D.

 

“A critical part of attention (and working memory capacity) is being able to ignore distraction. There has been growing evidence that meditation training (in particular mindfulness meditation) helps develop attentional control, and that this can start to happen very quickly.” – About Memory

 

There has accumulated a large amount of research demonstrating that mindfulness has significant benefits for psychological, physical, and spiritual wellbeing. One way that mindfulness practices may produce these benefits is by altering the brain. The nervous system is a dynamic entity, constantly changing and adapting to the environment. It will change size, activity, and connectivity in response to experience. These changes in the brain are called neuroplasticity. Over the last decade neuroscience has been studying the effects of contemplative practices on the brain and has identified neuroplastic changes in widespread areas. In other words, mindfulness practice appears to mold and change the brain, producing psychological, physical, and spiritual benefits.

 

One way to observe the effects of meditation techniques is to measure the effects of each technique on the brain’s activity. This can be done by recording the electroencephalogram (EEG). The brain produces rhythmic electrical activity that can be recorded from the scalp. It is usually 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 13-30 cycles per second band while Gamma activity occurs in the 30-100 cycles per second band.

 

In today’s Research News article “Increases in Theta Oscillatory Activity During Episodic Memory Retrieval Following Mindfulness Meditation Training.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6738165/), Nyhus and colleagues recruited adult participants and randomly assigned them to a wait-list control condition or to receive 4-weeks of once a week for 1 hour of mindfulness meditation training along with 20 minutes of daily home practice. They were measured for episodic memory and mindfulness before and after training. They learned words either by imagining a place associated with them or rating their pleasantness. The electroencephalogram (EEG) was measured from the scalp as the participants were engaged in an episodic memory task.

 

They found that meditation training produced a significant increase in mindfulness, especially the observe, describe, and act with awareness facets. The meditation group were also significantly better at identifying the source (place or pleasantness) of the word in the episodic memory task. With the EEG they found that the meditation group after training had significant increases in power in the Theta frequency band (4-7.5 hz.) in the frontal and parietal cortical areas of the brain. The increase in theta power were correlated with the level of the describe facet of mindfulness.

 

Theta power has been previously found to increase during tasks that test episodic memory. That was true here also. But in the present study the increases in theta power were greater after mindfulness meditation training. This suggests that the training altered the nervous system making it more responsive to episodic memories. The fact that mindfulness has been found to improve memory and that source memory was improved in the present study would appear to support this assertion. Hence, it would appear that mindfulness meditation improves episodic memory by enhancing brain processing of memories.

 

So, improve episodic memory and alter brain activity during memory retrieval with mindfulness.

 

“The meditation-and-the-brain research has been rolling in steadily for a number of years now, . . . . The practice appears to have an amazing variety of neurological benefits – from changes in grey matter volume to reduced activity in the “me” centers of the brain to enhanced connectivity between brain regions.” – Alice Walton

 

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

 

Nyhus, E., Engel, W. A., Pitfield, T. D., & Vakkur, I. (2019). Increases in Theta Oscillatory Activity During Episodic Memory Retrieval Following Mindfulness Meditation Training. Frontiers in human neuroscience, 13, 311. doi:10.3389/fnhum.2019.00311

 

Abstract

Mindfulness meditation has been shown to improve episodic memory and increase theta oscillations which are known to play a role in episodic memory retrieval. The present study examined the effect of mindfulness meditation on episodic memory retrieval and theta oscillations. Using a longitudinal design, subjects in the mindfulness meditation experimental group who underwent 4 weeks of mindfulness meditation training and practice were compared to a waitlist control group. During the pre-training and post-training experimental sessions, subjects completed the Five Facet Mindfulness Questionnaire (FFMQ) and studied adjectives and either imagined a scene (Place Task) or judged its pleasantness (Pleasant Task). During the recognition test, subjects decided which task was performed with each word (“Old Place Task” or “Old Pleasant Task”) or “New.” FFMQ scores and source discrimination were greater post-training than pre-training in the mindfulness meditation experimental group. Electroencephalography (EEG) results revealed that for the mindfulness meditation experimental group theta power was greater post-training than pre-training in right frontal and left parietal channels and changes in FFMQ scores correlated with changes in theta oscillations in right frontal channels (n = 20). The present results suggest that mindfulness meditation increases source memory retrieval and theta oscillations in a fronto-parietal network.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6738165/

 

Improve Psychiatric Problems among Veterans with Mindfulness

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Improve Psychiatric Problems among Veterans with Mindfulness

 

By John M. de Castro, Ph.D.

 

“mindfulness-based interventions show promise in helping soldiers reduce symptoms of PTS and depression as well as experience improvements in various psychosocial domains.” – Adam Clark

 

There are vast numbers of people worldwide who suffer with mental or physical illnesses. Mindfulness practices have been found to be helpful with coping with these illnesses and in many cases reducing the symptoms of the diseases. Mindfulness-Based Cognitive Therapy (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 a wide range of psychological issues. Military veterans are highly susceptible to psychiatric illnesses. So, it would make sense to investigate the effectiveness of MBCT for treating the psychiatric problems of military veterans

 

In today’s Research News article “Treatment Engagement and Outcomes of Mindfulness-Based Cognitive Therapy for Veterans with Psychiatric Disorders.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6748402/), Marchand and colleagues examined the medical records of veterans who had undergone Mindfulness-Based Cognitive Therapy (MBCT) therapy for psychiatric illnesses. MBCT was provided in 8 weeks of once a week 2-hour sessions. Their conditions included psychiatric disorders such as anxiety and depression, substance abuse, and ADHD, and medical disorders such as diabetes, hypertension, and chronic pain.

 

They found that only 67% of the veterans completed the Mindfulness-Based Cognitive Therapy (MBCT)  program. The greater the number of emergency room visits and psychiatric admission prior to the study significantly predicted the likelihood of completion of the MBCT program. This suggests that veterans who have a history of seeking treatment are more likely to complete therapy. Importantly, they found that following the MBCT program there was a significant decrease in psychiatric admission with large effect size.

 

These are interesting findings that suggest that the Mindfulness-Based Cognitive Therapy (MBCT)  program is effective in treating a variety of psychiatric conditions in military veterans. There appears to be a problem, however, with veterans who don’t have a history of seeking treatment completing the therapeutic program. This may signal the need for further study of what can be done to improve participation in this group. It is also possible that prior care with these particular veterans has not been effective and their dropping out of therapy may reflect the lack of success for them with the MBCT program. It is clear nonetheless that when the veterans complete the program it is highly effective in treating their conditions.

 

So, improve psychiatric problems among veterans with mindfulness.

 

“We now have a lot of evidence that mindfulness meditation is helpful for a range of different conditions, including depression, anxiety, substance problems and chronic pain.” – Joseph Wielgosz

 

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

 

Marchand, W. R., Yabko, B., Herrmann, T., Curtis, H., & Lackner, R. (2019). Treatment Engagement and Outcomes of Mindfulness-Based Cognitive Therapy for Veterans with Psychiatric Disorders. Journal of alternative and complementary medicine (New York, N.Y.), 25(9), 902–909. doi:10.1089/acm.2018.0511

 

Abstract

Objectives: The aim of this study was to evaluate utilization and outcomes of mindfulness-based cognitive therapy (MBCT) provided to veterans with psychiatric disorders.

Design: Retrospective chart review.

Settings: Veterans Administration Medical Center (VAMC).

Subjects: Ninety-eight veterans with psychiatric illness who were enrolled in an MBCT class between May of 2012 and January of 2016. Subjects were predominately white (95%), male (81%), and >50 years old (74%). The most common psychiatric conditions were any mood disorder (82%) and post-traumatic stress disorder (54%).

Intervention: Eight-week MBCT class.

Outcome measures: Session attendance and pre- to postintervention changes in numbers of emergency department (ED) visits and psychiatric hospitalizations.

Results: The average number of sessions attended was 4.87 of 8 and only 16% were present for all sessions. Veteran demographic variables did not predict the number of MBCT sessions attended. However, both greater numbers of pre-MBCT ED visits (p = 0.004) and psychiatric admissions (p = 0.031) were associated with attending fewer sessions. Among patients who experienced at least one pre- or post-treatment psychiatric admission in the 2 years pre- or postintervention (N = 26, 27%), there was a significant reduction in psychiatric admissions from pre to post (p = 0.002). There was no significant change in ED visits (p = 0.535).

Conclusions: MBCT may be challenging to implement for veterans with psychiatric illness in, at least some, outpatient VAMC settings due to a high attrition rate. Possible mediation approaches include development of methods to screen for high dropout risk and/or development of shorter mindfulness-based interventions (MBIs) and/or coupling MBIs with pleasurable activities. The finding of a significant decrease in psychiatric hospitalizations from pre- to post-MBCT suggests that prospective studies are warranted utilizing MBCT for veterans at high risk for psychiatric hospitalization.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6748402/

 

Improve Personal Growth in Cancer Survivors with Mindfulness and Spirituality

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Improve Personal Growth in Cancer Survivors with Mindfulness and Spirituality

 

By John M. de Castro, Ph.D.

 

“religion and spirituality can help cancer patients find meaning in their illness and provide comfort in the face of fear.” – American Cancer Society

 

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. These feeling can result from changes in body image, changes to family and work roles, feelings of grief at these losses, and physical symptoms such as pain, nausea, or fatigue. People might also fear death, suffering, pain, or all the unknown things that lie ahead. So, coping with the emotions and stress of a cancer diagnosis is a challenge and there are no simple treatments for these psychological sequelae of cancer diagnosis.

 

Mindfulness training has been shown to help with cancer recovery and help to alleviate many of the residual physical and psychological symptoms, including fatigue, stress,  sleep disturbance, and anxiety and depression. In addition, religion and spirituality become much more important to people when they’re diagnosed with cancer or when living with cancer. It is thought that people take comfort in the spiritual when facing mortality. Hence, spirituality and mindfulness may be useful tools for the survivors of cancer to cope with their illness. Thus, there is a need to study the relationships of spirituality and mindfulness on the ability of cancer survivors to positively adjust to their situation.

 

In today’s Research News article “Spiritual coping, perceived growth, and the moderating role of spiritual mindfulness in cancer survivors.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6340393/), Rudaz and colleagues recruited cancer survivors and had them complete questionnaires measuring spiritual coping (using spirituality as a comfort during difficulties), spiritual mindfulness, personal growth, and positive reinterpretation (interpreting stressful events in a positive way).

 

They found that for the cancer survivors, the greater the levels of mindfulness, the greater the levels of personal growth and the greater the levels of positive reinterpretation. Hence mindfulness was associated with positive adjustments to their illness. Further they found that higher levels of spiritual coping were associated with higher levels of personal growth and higher levels of positive reinterpretation only when mindfulness was high. No relationship was present when mindfulness was low. Younger participants and those with higher levels of education had significantly higher levels of personal growth.

 

It has to be kept in mind that the study was correlational and as such no conclusions about causation can be reached. But the results suggest that spiritual mindfulness is associated with two positive characteristics in cancer survivors, personal growth and positive reinterpretation. In other words, being mindful was associated with an ability to interpret the illness in a positive way and use it as a springboard for greater personal growth. Being able to take solace in spirituality (spiritual coping) was only an effective strategy when the cancer survivors had high levels of mindfulness. Hence, mindfulness is an important characteristic on its own but also one that allows for spirituality to be associated with growth. They appear to have to work together.

 

So, improve personal growth in cancer survivors with mindfulness and spirituality.

 

“Results show promise for mindfulness-based interventions to treat common psychological problems such as anxiety, stress, and depression in cancer survivors and to improve overall quality of life.” — Linda E. Carlson

 

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

 

Rudaz, M., Ledermann, T., & Grzywacz, J. G. (2018). Spiritual coping, perceived growth, and the moderating role of spiritual mindfulness in cancer survivors. Journal of psychosocial oncology, 36(5), 609–623. doi:10.1080/07347332.2018.1464091

 

Abstract

Purpose.

This study examined the moderating role of spiritual mindfulness on the association between spiritual coping and perceived growth in individuals with and without current treatment for cancer.

Design/Sample.

Adults with a cancer history (N = 534) from the Midlife in the United States study completed a telephone interview and self-administered questionnaires.

Methods/Findings.

Moderated regression analyses, controlled for age and educational attainment, showed that mindfulness moderated the effect of spiritual coping on personal growth and on positive reinterpretation. High mindfulness amplified the effect of spiritual coping on both personal growth and positive reinterpretation. Further, this moderating effect was significantly different for adults with versus without current treatment for cancer for positive reinterpretation but not for personal growth.

Conclusions/Implications.

These findings highlight the potential amplifying effect of spiritual mindfulness on the effect of spiritual coping on perceived growth in cancer survivors.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6340393/

 

Improve Emotion Regulation with Exercise and Mindfulness

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Improve Emotion Regulation with Exercise and Mindfulness

 

By John M. de Castro, Ph.D.

 

“When we engage in mindful practices, we can bring greater awareness, clarity, and equanimity to our day to day experiences. This leads to greater balance and less of the intense swings in mood that can throw us off kilter for days at a time.” – Sean Fargo

 

Mindfulness practice has been shown to improve emotions and their regulation. Practitioners demonstrate more positive and less negative emotions and the ability to fully sense and experience emotions, while responding to them in appropriate and adaptive ways. In other words, mindful people are better able to experience yet control their responses to emotions. The ability of mindfulness training to improve emotion regulation is thought to be the basis for a wide variety of benefits that mindfulness provides to mental health and the treatment of mental illness especially depression and anxiety disorders. Aerobic exercise can also improve emotions and their regulation. So, it makes sense to study the relationship between exercise and mindfulness in effecting emotion regulation.

 

In today’s Research News article “How Does Exercise Improve Implicit Emotion Regulation Ability: Preliminary Evidence of Mind-Body Exercise Intervention Combined With Aerobic Jogging and Mindfulness-Based Yoga.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6718717/), Zhang and colleagues recruited healthy female postgraduate students who did not have meditation experience and who did not engage in exercise. They were randomly assigned to a wait-list control condition or to engage in exercise 3 times per week over 8 weeks. The exercise alternated between jogging for 40 minutes and yoga practice for 60 minutes. The yoga practice consisted of postures, breathing exercises, and meditation. They were measured before and after the intervention for emotion regulation, negative emotions, aerobic fitness, and mindfulness.

 

They found that in comparison to baseline and the wait-list control group, the aerobic exercise and yoga group had significant increases in emotion regulation, aerobic fitness, and mindfulness and decreases in negative emotions. They also found that increases in aerobic fitness were associated with increases in emotion regulation. But this association was only significant with participants who had high or moderate increases in their levels of mindfulness. At low levels of improvements in mindfulness there was no significant relationship between aerobic fitness and emotion regulation.

 

These findings are interesting and suggest that aerobic exercise and yoga improves the individual’s ability to regulate their emotions. But mindfulness is required for aerobic exercise to be effective. The increases in mindfulness would be expected as the exercise intervention contained yoga and meditation components. Aerobic exercise is known to improve mood. It is new to show that it also improves emotion regulation. Perhaps that’s the reason for the improvements in mood. But in order for the emotion regulation to be improved by exercise, it must be accompanied by improvements in mindfulness. This suggests that the ability to pay attention in the present moment nonjudgmentally to one’s emotions is required for the exercise to affect the ability to regulate the emotions. Here mindfulness plays a permissive role allowing the exercise to have its effect on the participants ability to regulate their emotions.

 

So, Improve Emotion Regulation with Exercise and Mindfulness.

 

“By acting mindfully, people are not only aware of their own feelings but become able to distance from it, avoiding feeling overpowered and acting out.” – Joan Swart

 

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

 

Zhang, Y., Fu, R., Sun, L., Gong, Y., & Tang, D. (2019). How Does Exercise Improve Implicit Emotion Regulation Ability: Preliminary Evidence of Mind-Body Exercise Intervention Combined With Aerobic Jogging and Mindfulness-Based Yoga. Frontiers in psychology, 10, 1888. doi:10.3389/fpsyg.2019.01888

 

Abstract

Purpose: The primary aim of the present study is to examine the effect of 8-week mind-body exercise intervention combining aerobic jogging and mindfulness-based yoga on implicit emotion regulation ability. The secondary aim is to explore the specific potential pathways by which the mind-body exercise intervention fosters implicit emotion regulation. This may help us to understand how the key components of exercise intervention contribute to emotional benefits.

Methods: Sixty participants were randomly allocated to one of two parallel groups: (1) the intervention group (n = 29) and (2) the waitlist control group (n = 31). Participants were asked to fill out scales measuring mindfulness and instructed to complete an emotion regulation task to assess implicit emotion regulation ability as well as the PWC 170 Test to evaluate aerobic fitness before and after the intervention.

Results: The results of the two-way repeated ANOVA revealed that 8 weeks of intervention improved implicit emotion regulation, mindfulness, and aerobic fitness levels. Path analysis showed that only improved aerobic fitness mediated the intervention effect on implicit emotion regulation ability, controlling for change in negative affect. Notably, the relationship between the effects on implicit emotion regulation ability and aerobic fitness was moderated by improved mindfulness.

Conclusion: Eight weeks of mind-body exercise intervention improves implicit emotion regulation ability. The aerobic fitness may be an essential pathway which mediates the efficacy on implicit emotion regulation ability. Furthermore, different components, such as aerobic fitness and mindfulness, may interactively contribute to such emotional benefits.

Keywords: mind-body exercise, aerobic jogging, mindfulness-based yoga, implicit emotion regulation ability, aerobic fitness, mindfulness, potential pathway

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6718717/