Focused

Long-Term Meditation Changes Large-Scale Brain Connectivity

psyjdc Leave a comment

Long-Term Meditation Changes Large-Scale Brain Connectivity

 

By John M. de Castro, Ph.D.

 

There has accumulated a large amount of research demonstrating that meditation practice has significant benefits for psychological, physical, and spiritual wellbeing. One way that meditation 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, meditation practice appears to mold and change the brain structures and connectivity, producing psychological, physical, and spiritual benefits, especially mindfulness.

 

Two in particular types of meditation can be characterized on a continuum with the degree and type of attentional focus. In focused attention meditation, the individual practices paying attention to a single meditation object, learns to filter out distracting stimuli, including thoughts, and learns to stay focused on the present moment, filtering out thoughts centered around the past or future. In open monitoring meditation, the individual opens up awareness to everything that’s being experienced regardless of its origin. These include bodily sensations, external stimuli, and even thoughts. The meditator just observes these thoughts and lets them arise and fall away without paying them any further attention. These differences are likely to produce different effects on the practitioners, their psychology and their brains.

 

In today’s Research News article “Long-Term and Meditation-Specific Modulations of Brain Connectivity Revealed Through Multivariate Pattern Analysis.” (See summary below or view the full text of the study at:  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10164028/ )  Guidotti  and colleagues recruited established long-term meditators (Buddhist Monks) and novice meditators. The novices practiced both focused and open monitoring meditation for 30 minutes per day for 10 days. Both groups then practiced both focused and open monitoring meditation while having their brains scanned with functional Magnetic Resonance Imaging (fMRI).

 

The found that large-scale functional interactions in the brain could better predict both focused and open monitoring meditation styles in practiced meditators as opposed to novices. Open Monitoring meditation enhanced connectivity between regions that process somatosensory, auditory, and visual information. On the other hand, Focused Meditation enhanced connectivity between regions that are involved in attentional control and self-awareness.

 

These findings suggest that long-term meditation changes the brain to process different information in large-scale networks for focused versus open monitoring meditations, but not so much in novice meditators. Hence, long-term meditation practice changes the brain to facilitate brain processing of meditation type specific functions.

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Twitter @MindfulResearch

 

Study Summary

 

Guidotti R, D’Andrea A, Basti A, Raffone A, Pizzella V, Marzetti L. Long-Term and Meditation-Specific Modulations of Brain Connectivity Revealed Through Multivariate Pattern Analysis. Brain Topogr. 2023 May;36(3):409-418. doi: 10.1007/s10548-023-00950-3. Epub 2023 Mar 28. PMID: 36977909; PMCID: PMC10164028.

 

Abstract

Neuroimaging studies have provided evidence that extensive meditation practice modifies the functional and structural properties of the human brain, such as large-scale brain region interplay. However, it remains unclear how different meditation styles are involved in the modulation of these large-scale brain networks. Here, using machine learning and fMRI functional connectivity, we investigated how focused attention and open monitoring meditation styles impact large-scale brain networks. Specifically, we trained a classifier to predict the meditation style in two groups of subjects: expert Theravada Buddhist monks and novice meditators. We showed that the classifier was able to discriminate the meditation style only in the expert group. Additionally, by inspecting the trained classifier, we observed that the Anterior Salience and the Default Mode networks were relevant for the classification, in line with their theorized involvement in emotion and self-related regulation in meditation. Interestingly, results also highlighted the role of specific couplings between areas crucial for regulating attention and self-awareness as well as areas related to processing and integrating somatosensory information. Finally, we observed a larger involvement of left inter-hemispheric connections in the classification. In conclusion, our work supports the evidence that extensive meditation practice modulates large-scale brain networks, and that the different meditation styles differentially affect connections that subserve style-specific functions.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10164028/

 

Focused and Self-Compassion Meditation Have Different Effects on Attention, Well-Being and Classroom Performance

psyjdc Leave a comment

Focused and Self-Compassion Meditation Have Different Effects on Attention, Well-Being and Classroom Performance

By John M. de Castro, Ph.D.

 

“There is no good or bad meditation — there is simply awareness or non-awareness. To begin with, we get distracted a lot. Over time, we get distracted less. Be gentle with your approach, be patient with the mind, and be kind to yourself along the way.” -Andy Puddicombe

 

Meditation training has been shown to improve attention, health and well-being. One problem with understanding meditation effects is that there are, a wide variety of meditation techniques and it is not known which work best for affecting different psychological areas. Classically they’ve been characterized on a continuum with the degree and type of attentional focus. In focused attention meditation, the individual practices paying attention to a single meditation object. In open monitoring meditation, the individual opens up awareness to everything that’s being experienced including thoughts regardless of its origin. In Self-Compassion meditation the individual wishes the self happiness, well-being, safety, peace, and ease of well-being.

 

In today’s Research News article “The effects of short interventions of focused-attention vs. self-compassion mindfulness meditation on undergraduate students: Evidence from self-report, classroom performance, and ERPs.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9858058/  ) O’Hare and colleagues recruited undergraduate students and had different classes practice focused meditation or Self-Compassion meditation for 10 minutes per week for 10 weeks. Before and after the training the students were measured for course performance, anxiety, worry, mood, positive and negative emotions, stress, self-compassion, and empathy. They were also measured for electroencephalogram (EEG) during performance of a cognitive/attentional task.

 

They found that both meditation types produced significant reductions in worry while the focused meditation group had less interference effects during the attentional task and self-compassion meditation produced significant reductions in anxiety, perceived stress, and depression, significant increases in positive emotions and course performance, and less reaction in the EEG to negative emotional words.

 

Hence, focused meditation appears to produce better attentional control while self-compassion meditation produced improved psychological well-being and academic performance. Hence, different meditation techniques produce different benefits for college students.

 

“To know one’s own mind is nothing short of life-changing. –@Headspace

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Twitter @MindfulResearch

 

Study Summary

 

O’Hare AJ, Gemelli ZT. The effects of short interventions of focused-attention vs. self-compassion mindfulness meditation on undergraduate students: Evidence from self-report, classroom performance, and ERPs. PLoS One. 2023 Jan 20;18(1):e0278826. doi: 10.1371/journal.pone.0278826. PMID: 36662726; PMCID: PMC9858058.

 

Abstract

Mindfulness-based stress reduction (MBSR) training has been shown to improve cognitive processing, wellbeing, and academic performance. However, mindfulness interventions that are integrated into non-mindfulness related courses have not been well-investigated. Further, the unique effects of different aspects of MBSR training are not as well understood. This paper examines the effects that are uniquely associated with focused-attention versus self-compassion mindfulness practices utilizing a multi-method approach. Event-related potentials (ERPs) were recorded during an Emotional Flanker task, and self-report measures of wellbeing and measures of classroom performance were collected before and after training. Participants were students in two sections of the same undergraduate course and either completed 10 weeks of focused-attention practice or self-compassion practice that was built into their class sessions. Students in the focused-attention group (mean age = 22.08) had reduced interference effects on their reaction times following the training. Students in the self-compassion group (mean age = 23.91) showed altered processing of conflict on negative trials via the N2 and P3 ERP amplitudes after the training. This group also reported significant improvements in wellbeing and performed significantly better on more class tests compared to the focused-attention group. These data support the effectiveness of incorporating brief, simplified mindfulness practices in any classroom as an intervention to improve attention, wellbeing and classroom performance.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9858058/

 

Different Meditation Techniques Improve Well-Being Through Different Brain Systems

psyjdc Leave a comment

Different Meditation Techniques Improve Well-Being Through Different Brain Systems

 

By John M. de Castro, Ph.D.

 

‘Meditation can alter the mechanism of your brain after some time.” – Perpetua Neo

 

There has accumulated a large amount of research demonstrating that meditation practice has significant benefits for psychological, physical, and spiritual wellbeing. One way that meditation 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, meditation practice appears to mold and change the brain structures and connectivity, producing psychological, physical, and spiritual benefits, especially mindfulness.

 

There are, however, a wide variety of meditation practices and there has been extensive research into the impact of these different practices on the brain psychological well-being. The different practices can be classified as to whether they focus on present centered awareness (attention to present moment sensation and perception), meta-awareness (attention to consciousness), or non-reactive self-related processing (nonjudgmental attention to and acceptance of self-related perceptions). There is a need to summarize what has been learned about the psychological effects and brain activities related to these different meditation classifications.

 

In today’s Research News article “Classification of Mindfulness Meditation and Its Impact on Neural Measures in the Clinical Population.” (See summary below or view the full text of the study at: https://www.frontiersin.org/articles/10.3389/fpsyg.2022.891004/full?utm_source=F-AAE&utm_medium=EMLF&utm_campaign=MRK_1885330_a0P58000000G0YfEAK_Psycho_20220614_arts_A ) Ngan and colleagues reviewed and summarized the published research literature on the effects of meditation techniques focusing on present moment attention, meta-awareness, or non-reactive self-related processing on brain systems and psychological well-being. They found 12 published research studies.

 

They report that the published research studies found that meditation focusing on present centered awareness was associated with neural activity in the brain’s salience network that is associated with identifying important aspects of the environment to pay attention to. They also found that meditation focusing on meta-awareness was associated with neural activity in the brain’s default mode network that is associated with self-related processing and mind wandering. Finally, they found that meditation focusing on meta-awareness was associated with neural activity in the brain’s default mode network interconnections with the executive network that is associated with high level thinking.

 

So, although all meditation focuses produce beneficial psychological effects, they may do so through different neural mechanisms.

 

“it really matters what you practice—the observed brain changes were specific to different types of training and coincided with improvements in emotional and cognitive skills.” – Tania Singer

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on Twitter @MindfulResearch

 

Study Summary

 

Ngan STJ and Cheng PWC (2022) Classification of Mindfulness Meditation and Its Impact on Neural Measures in the Clinical Population. Front. Psychol. 13:891004. doi: 10.3389/fpsyg.2022.891004

 

Different forms of mindfulness meditation are increasingly integrated in the clinical practice in the last three decades. Previous studies have identified changes in the neurophysiology and neurochemistry of the brain resulting from different mindfulness meditation practices in the general population. However, research on neural correlates of different types of meditation, particularly on the clinical outcomes, is still very sparse. Therefore, the aim of this article is to review the neural impact of mindfulness meditation interventions on different mental disorders via the classification of main components of mindfulness meditation. The clearer classification of mindfulness meditation may inform future clinical practice and research directions.

https://www.frontiersin.org/articles/10.3389/fpsyg.2022.891004/full?utm_source=F-AAE&utm_medium=EMLF&utm_campaign=MRK_1885330_a0P58000000G0YfEAK_Psycho_20220614_arts_A

 

Improve Gastrointestinal Health with Meditation

psyjdc Leave a comment

Improve Gastrointestinal Health with Meditation

 

By John M. de Castro, Ph.D.

 

“Humans were never designed to be stressed out all the time, and when we learn to calm our nervous systems, our health improves dramatically. Our nervous system and the gut are inextricably linked.” – Buffy Owens

 

Stress affects gastrointestinal function. Short-term stress can produce a loss of appetite and slow digestion while long-term stress can produce heartburn, indigestion, nausea and vomiting, diarrhea, constipation and associated lower abdominal pain. Mindfulness is known to be helpful in reducing the psychological and physical responses to stress and contemplative practice has been shown to improve the symptoms of Irritable Bowel Syndrome and dyspepsia. In addition, mindfulness practices improve the intestinal bacteria that are important for digestion. So, it is likely that meditation practice would improve gastrointestinal health.

 

In today’s Research News article “Improvement in Gastrointestinal Quality of Life Index (GIQLI) following meditation: An open-trial pilot study in India.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8039347/ ) Kanchibhotla and colleagues recruited healthy adults and had them engage in daily 20-minute meditation for 50 days. The practice was a focused meditation on the gut region. They were measured before, at 24 days and after the intervention period for gastrointestinal quality of life divided into five domains: core symptoms, physical, psychological, social, and disease specific.

 

They found that after 24 and 50 days of meditation practice there were significant improvements with large effect sizes in gastrointestinal quality of life, including all domains. There were some indications that the effects were larger for men than women. Clearly, there were large significant improvements after meditation in gastrointestinal function.

 

It should be kept in mind that this was a pilot study that lacked a comparison (control) condition leaving open a wide variety of confounding alternative interpretations such as expectancy effects, attention (Hawthorne) effects, experimenter bias, etc. But better controlled studies have reported that mindfulness improves gastrointestinal function. So, it is likely that in the present study the meditation practice improved gastrointestinal function. But future better controlled research is needed.

 

So, improve gastrointestinal health with meditation.

 

“In calming your stress response, meditation can help prevent the slowed digestion speed, altered gene expression, intestinal permeability, and disruptive changes to gut microbes caused by stress.” – Crystal Starr

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are available on Twitter @MindfulResearch

 

Study Summary

 

Kanchibhotla, D., Sharma, P., & Subramanian, S. (2021). Improvement in Gastrointestinal Quality of Life Index (GIQLI) following meditation: An open-trial pilot study in India. Journal of Ayurveda and integrative medicine, 12(1), 107–111. https://doi.org/10.1016/j.jaim.2021.01.006

 

Abstract

Background

Medical science is increasingly recognizing the role of gut health in achieving optimal wellbeing. A healthy gut improves digestion. Additionally, it has a positive impact on multiple physiological networks such as immune system, central nervous system and hepato-endocrine system, thus contributing to the overall quality of life. Functional gastrointestinal disorders: also known as disorders of gut-brain interaction, such as irritable bowel syndrome are increasing worldwide. Conditions like stress, anxiety and mental disorders are correlated with these disorders. Mind-body interventions have been shown to ameliorate stress, anxiety and related conditions that may aggravate functional gastrointestinal disorders.

Objective

The present study aims to investigate the benefits of a novel meditation technique called the Vaishvanara Agni meditation (VAM) on the gastrointestinal quality of life.

Materials and methods

54 subjects participated in the study and practiced VAM for 50 days. During the Vaishvanara Agni meditation (VAM), attention is directed to the navel region and the digestive system. The effect of the meditation was evaluated using the gastrointestinal quality of life (GI-QoL) questionnaire, which was administered to subjects at three different time points i.e. day 0, day 24 and day 50.

Results

GI-QoL was significantly improved with the practice of VAM. Additionally, significant improvements were noticed in all sub domains especially core symptoms, physical strength and the psychological domain.

Conclusion

Meditation practices that focus on improving digestion can be an effective tool for improving gut health.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8039347/

 

Focused Meditation Changes Brain Activity Differently Then Open Monitoring Meditation

psyjdc 1 Comment

Focused Meditation Changes Brain Activity Differently Then Open Monitoring Meditation

 

By John M. de Castro, Ph.D.

 

“It’s like asking a sport expert ‘what does sport do to your body’. The expert would say, do you mean swimming or horse-riding? You can imagine mental training being as complex.” – Tanya

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. One problem with understanding meditation effects is that there are a number of different types of meditation. Classically they’ve been characterized on a continuum with the degree and type of attentional focus. In focused attention meditation, the individual practices paying attention to a single meditation object, often the breath. In open monitoring meditation, the individual opens up awareness to everything that’s being experienced including thoughts regardless of their origin.

 

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 Magnetoencephalography (MEG). It measures the magnetic fields associate with the brain’s electrical activity. This produces a mapping of structures that are active moment to moment. Whether these different meditation types produce different patterns of activity in the brain has not been extensively studied.

 

In today’s Research News article “Mining the Mind: Linear Discriminant Analysis of MEG Source Reconstruction Time Series Supports Dynamic Changes in Deep Brain Regions During Meditation Sessions.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8556220/ ) Calvetti and colleagues recruited 2 Buddhist monks who were highly experienced meditators and recorded their brain activity with Magnetoencephalography (MEG) over 6-minute periods while at rest, during focused attention meditation, and during open monitoring meditation.

 

They found that different brain area activities occurred during the two types of meditation particularly in the anterior and posterior cingulate cortex and insular cortex. They also found differences in the activities of core structures in the limbic system including the amygdala, accumbens, putamen, thalamus, and caudate.

 

That the two meditation styles produce different brain activity patterns is not surprising as they differ considerably in cognitive contents, particularly the involvement in attentional processes. The structures involved, however, are interesting as they are in general associated with emotional processing (limbic system and cortical areas) and motor movements (Caudate and Putamen). During neither meditation style are there either high emotions or motor movements. So, there is no clear reason why these structures should differ between focused attention meditation and open monitoring meditation. It should be kept in mind that the participants are unusual in the amount of practice and the number of years of practice and do not represent the general meditation population.

 

It is clear, however, that focused meditation changes brain activity differently than open monitoring meditation in highly experienced meditators.

 

“Many meditation techniques are available today. Contrary to common belief there are distinct differences between techniques, such as the effort involved, their impact on the brain, and whether or not they result in verifiable benefits.” – Transcendental Meditation

 

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

 

Calvetti, D., Johnson, B., Pascarella, A., Pitolli, F., Somersalo, E., & Vantaggi, B. (2021). Mining the Mind: Linear Discriminant Analysis of MEG Source Reconstruction Time Series Supports Dynamic Changes in Deep Brain Regions During Meditation Sessions. Brain topography, 34(6), 840–862. https://doi.org/10.1007/s10548-021-00874-w

 

Abstract

Meditation practices have been claimed to have a positive effect on the regulation of mood and emotions for quite some time by practitioners, and in recent times there has been a sustained effort to provide a more precise description of the influence of meditation on the human brain. Longitudinal studies have reported morphological changes in cortical thickness and volume in selected brain regions due to meditation practice, which is interpreted as an evidence its effectiveness beyond the subjective self reporting. Using magnetoencephalography (MEG) or electroencephalography to quantify the changes in brain activity during meditation practice represents a challenge, as no clear hypothesis about the spatial or temporal pattern of such changes is available to date. In this article we consider MEG data collected during meditation sessions of experienced Buddhist monks practicing focused attention (Samatha) and open monitoring (Vipassana) meditation, contrasted by resting state with eyes closed. The MEG data are first mapped to time series of brain activity averaged over brain regions corresponding to a standard Destrieux brain atlas. Next, by bootstrapping and spectral analysis, the data are mapped to matrices representing random samples of power spectral densities in α, β, γ, and θ frequency bands. We use linear discriminant analysis to demonstrate that the samples corresponding to different meditative or resting states contain enough fingerprints of the brain state to allow a separation between different states, and we identify the brain regions that appear to contribute to the separation. Our findings suggest that the cingulate cortex, insular cortex and some of the internal structures, most notably the accumbens, the caudate and the putamen nuclei, the thalamus and the amygdalae stand out as separating regions, which seems to correlate well with earlier findings based on longitudinal studies.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8556220/

 

Mindfulness Traits May Affect the Ability of Brief Meditation to Improve Attention

psyjdc Leave a comment

Mindfulness Traits May Affect the Ability of Brief Meditation to Improve Attention

 

By John M. de Castro, Ph.D.

 

“even relatively short daily meditation practice can have similar behavioral effects as longer duration and higher-intensity mediation practices.” – Julia Basso

 

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 how much meditation and what types of meditation work best to improve attention

 

In today’s Research News article “Individual Differences in the Change of Attentional Functions With Brief One-Time Focused Attention and Open Monitoring Meditations.” (See summary below or view the full text of the study at: https://www.frontiersin.org/articles/10.3389/fpsyg.2021.716138/full?utm_source=F-AAE&utm_medium=EMLF&utm_campaign=MRK_1765474_a0P58000000G0YfEAK_Psycho_20211102_arts_A ) Tanaka and colleagues recruited university students and randomly assigned them to no-meditation, focused meditation, or open monitoring meditation. The participants were measured for mindfulness, and attentional functions (alerting, orienting, and conflict monitoring). They then spent 30 minutes either listening to music, focused meditation, or open monitoring meditation followed by measurement of attentional functions.

 

They found that before and after the 30-minute interventions there were no significant differences in attentional functions or mindfulness between the groups. But they found that individual differences in mindfulness affected the effects of the interventions on the alerting attentional function. In particular, employing stepwise multiple regressions, that for participants who practiced focused meditation the higher the nonreactivity mindfulness score the smaller the change in the alerting score. In addition, for participants who practiced open monitoring meditation the higher the describing mindfulness score the larger the change in the alerting score.

 

It has been previously demonstrated that mindfulness training over a period of time improves attention. The present findings, though, show that a brief, one-time meditation, regardless of type, is not sufficient to improve attention. This suggests that attentional improvement requires repeated meditation practices. The results also suggest that people with different levels of mindfulness may respond differently to meditation affecting attention. There were, however, multiple comparisons (45) involved here and only 2 were significantly different. This could occur be chance. So, caution must be exercised in reaching conclusions about these relationships until they can be replicated.

 

So, mindfulness traits may affect the ability of brief meditation to improve attention.

 

“Mindfulness and meditation can have a tangible effect on the way your brain processes and stores information, reducing your stress, increasing your ability to respond flexibly to change, and can improve your ability to focus on tasks and pay attention over a period of time.“ – Maren Hunsberger

 

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

 

Tanaka M, Nakashima R, Hiromitsu K and Imamizu H (2021) Individual Differences in the Change of Attentional Functions With Brief One-Time Focused Attention and Open Monitoring Meditations. Front. Psychol. 12:716138. doi: 10.3389/fpsyg.2021.716138

 

Mindfulness meditation is increasingly used for clinical treatment and to improve well-being. One of the most fundamental benefits of mindfulness meditation is now considered as enhanced attentional control. Mindfulness meditation is a complex technique but most of its variants consist of a combination of two types of basic meditation practice: focused attention meditation (FAM) and open monitoring meditation (OMM). Although many studies have examined the effect of relatively long-term meditation on attention, some recent studies have focused on the effect of a brief one-time meditation on cognitive processing, including attentional functions. Furthermore, it is necessary to discuss the relationship between the effect of mindfulness meditation on attentional functions and personality traits (especially traits related to mindfulness). This study investigated whether attentional control is improved by a single 30-min FAM or OMM and whether the degree of improvement in attentional functions – alerting, orienting, and conflict monitoring – induced by the meditation varies according to the participant’s trait scores related to mindfulness measured by the Five Facets Mindfulness Questionnaire. Participants were randomly assigned to one of three groups, i.e., FAM, OMM, and no-meditation (noM) groups, and given an Attentional Network Test before and after each 30-min meditation session. Compared with the noM group, there was no overall improvement in attentional functions with either type of meditation. However, there were associations between the change of the alerting function’s score and the personality traits: in the FAM group, alerting scores were negatively associated with the nonreactivity facet of the FFMQ, and in the OMM group, alerting scores were positively associated with describing facet scores of the FFMQ. The results indicate that the effects of meditation methods on attentional functions could depend on the individual’s traits related to mindfulness and that mindfulness meditation could sometimes appear to have no impact on attentional functions.

https://www.frontiersin.org/articles/10.3389/fpsyg.2021.716138/full?utm_source=F-AAE&utm_medium=EMLF&utm_campaign=MRK_1765474_a0P58000000G0YfEAK_Psycho_20211102_arts_A

 

Increase Brain Activity with Brief Exercise and Meditation

psyjdc Leave a comment

Increase Brain Activity with Brief Exercise and Meditation

 

By John M. de Castro, Ph.D.

 

“Meditating for a few minutes might help rein in those wandering thoughts and help you stay focused throughout the day. But meditating can have an even bigger impact. Some studies show that it affects the brain in various ways, from changing the brain’s volume to decreasing activity in the parts of the brain responsible for stress.” – Lela Moore

 

Mindfulness training has been shown through extensive research to be effective in improving physical and psychological health and particularly with reducing the physical and psychological reactions to stress. There are a number of ways that meditation practices produce these benefits, including changes to the brain and physiology. The nervous system changes in response to how it is used and how it is stimulated in a process called neuroplasticity. Highly used areas grow in size, metabolism, and connectivity. Mindfulness practices in general are known to produce these kinds of changes in the structure and activity of the brain. One way to observe the effects of meditation on the nervous system is to measure changes in the functional near‐infrared spectroscopy (fNIRS), which measures blood flow to brain areas.

 

In today’s Research News article “Activation of the orbitofrontal cortex by both meditation and exercise: A near-infrared spectroscopy study.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7901739/ ) Miyashiro and colleagues recruited healthy adults and had them perform 20 minutes of breath following meditation, exercise (pushups), or a control task (movie of scenery with relaxing music) in a random order. They then performed a 2-back test of attention involving presentation of a sequence of numbers and after a prompt, the recall of the number 2 places back. While performing this task the participants underwent measurement of brain activation with functional near‐infrared spectroscopy (fNIRS).

 

They did not observe a significant difference between groups on the 2-back test. But in comparison to the control condition, the meditation and exercise groups had significantly increased activation of the edges of the orbitofrontal cortex (insular cortex) that then spread to the central orbitofrontal cortex. The 20-minute interventions were too short to invoke neuroplasticity and produce long-lasting changes in this brain. The orbitofrontal cortex is known to be involved in attention. So, it is not surprising that attention demanding exercise and meditation would alter its activity while the plotless video would invoke mind wandering and a loss of attention.

 

So, increase brain activity with brief exercise and meditation.

 

]“meditation nurtures the parts of the brain that contribute to well-being. Furthermore, it seems that a regular practice deprives the stress and anxiety-related parts of the brain of their nourishment.” – Mindworks

 

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

 

Miyashiro, S., Yamada, Y., Muta, T., Ishikawa, H., Abe, T., Hori, M., Oka, K., Koshikawa, F., & Ito, E. (2021). Activation of the orbitofrontal cortex by both meditation and exercise: A near-infrared spectroscopy study. PloS one, 16(2), e0247685. https://doi.org/10.1371/journal.pone.0247685

 

Abstract

In some types of meditation, such as mindfulness and Zen, breathing is the focus of attention, whereas during an excessive, short-period of anaerobic exercise, the muscles become the focus of attention. Thus, during both efforts, one’s attention is focused on a certain feature of the body. Both meditation and exercise generally provide mental refreshment to humans. We hypothesized that the same brain regions are activated by both efforts in humans. To examine this hypothesis, we engaged participants in 3 tasks: meditation, exercise, and a control task. After each task, the participants underwent a 2-back test to concentrate their thoughts, while changes in their blood hemoglobin levels were simultaneously monitored using near-infrared spectroscopy (NIRS). Seventeen participants (20–24 years of age; 11 men, 6 women) were enrolled. We applied a fast-Fourier transform (FFT) analysis to the NIRS wave data and calculated the correlation coefficients of the FFT data between (1) meditation and control, (2) exercise and control, and (3) meditation and exercise, at the orbitofrontal cortex (OFC) and dorsolateral prefrontal cortex (DLPFC), brain areas that are generally involved in mental refreshment. A significant difference in the correlation coefficients between the OFC and DLPFC was detected in the meditation and exercise analysis, and signal source analysis confirmed that the NIRS waves spread from the right and left OFC edges (i.e., right and left temples) toward the center. Our results suggest that both meditation and exercise activate the OFC, which is involved in emotional reactions and motivation behavior, resulting in mental refreshment.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7901739/

Improve Working Memory and Increase Brain Activity with a Single Focused Meditation in Novice Meditators

psyjdc Leave a comment

Improve Working Memory and Increase Brain Activity with a Single Focused Meditation in Novice Meditators

 

By John M. de Castro, Ph.D.

 

“Regular meditation increases blood flow to the brain, which leads to a stronger network of blood vessels in the cerebral cortex and reinforces memory capacity.” – Mindworks

 

Humans have both an amazing capacity to remember and a tremendously limited capacity depending upon which phase of the memory process. Our long-term store of information is virtually unlimited. On the other hand, short-term memory is extremely limited. This is called our working memory and it can contain only about 5 to 9 pieces of information at a time. This fact of a limited working memory store shapes a great deal about how we think, summarize, and categorize our world.

 

Memory ability is so important to everyday human functioning that it is important to study ways to maintain or improve it. Mindfulness has been shown to improve working memory capacity. Since the brain is responsible for working memory, the effects of mindfulness training on working memory must in some way be altering the brain. One way to observe the effects of meditation on the nervous system is to measure changes in the functional near‐infrared spectroscopy (fNIRS), which measures blood flow to brain areas. Hence, it makes sense to observe the effects of meditation on working memory and its association with cerebral flows.

 

In today’s Research News article “Effect of one-session focused attention meditation on the working memory capacity of meditation novices: A functional near-infrared spectroscopy study.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8413779/ ) Yamaya and colleagues recruited adult meditation naïve university students and randomly assigned them to practice for 15 minutes focused breath following meditation or listen to disconnected random conversations. During the 15-minute intervention period cerebral blood flow was measured with functional near‐infrared spectroscopy (fNIRS). They were also measured 5 minutes before and 5 minutes after the 15-minute intervention period for working (short-term) memory.

 

They found that in comparison to baseline and the random thinking control group, the group that performed focused meditation had a significant increase in working memory capacity and a significant increase in cerebral blood flow to the dorsolateral prefrontal cortex. They found that the working memory change and the cerebral blood flow change were significantly correlated such that the greater the increase in cerebral blood flow, the greater the increase in working memory.

 

The results are interesting that a single 15-minute meditation by meditation naïve participants immediately increases working memory. The results further suggest that this memory improvement is associated with an increase in the flow of blood to a particular brain area, the dorsolateral prefrontal cortex, that has been shown to be involved in focused attention. This suggests that focused meditation activates the dorsolateral prefrontal cortex which improves working memory.

 

The very short-term nature of the study precludes any neuroplastic changes in the brain. But previous research has found that longer-term meditation produces long-term changes in the dorsolateral prefrontal cortex. It is unfortunate that in the present study there wasn’t a follow up to determine if the effects of the single 15-minute meditation were immediate and transitory or persisted for a period of time. Regardless, the results may provide a glimpse as to how meditation changes brain systems and in turn memory.

 

So, improve working memory and increase brain activity with a single focused meditation in novice meditators.

 

“the mindfulness group had significantly less proactive interference during the memory test compared to the writing group, indicating an improvement in short-term memory.” – Jill Suttie

 

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

 

Yamaya, N., Tsuchiya, K., Takizawa, I., Shimoda, K., Kitazawa, K., & Tozato, F. (2021). Effect of one-session focused attention meditation on the working memory capacity of meditation novices: A functional near-infrared spectroscopy study. Brain and behavior, 11(8), e2288. https://doi.org/10.1002/brb3.2288

 

Abstract

Introduction

Previous studies have revealed that one‐session focused attention meditation (FAM) can improve top‐down attention control, which is one of the factors of working memory capacity (WMC). In addition, FAM shares various neural substrates, including the dorsolateral prefrontal cortex (DLPFC), with WMC. Thus, we hypothesized that one‐session FAM would improve WMC by activating the DLPFC evoked by the top‐down attention control. In this study, we examined whether FAM modified WMC in individuals with little to no meditation experience.

Methods

The participants were randomly assigned to either the FAM group (N = 13) or the control group (N = 17) who engaged in random thinking (i.e., mind‐wandering). Before and after each 15‐min intervention, the participants’ WMC was measured according to the total number of correct answers in the Reading Span Test. During each intervention, functional near‐infrared spectroscopy was employed to measure the blood flow in the participants’ DLPFC and determine the top‐down attention control effect.

Results

In the FAM group, WMC increased, and the bilateral DLPFC was activated during the intervention. As for the control group, WMC decreased after the intervention, and the bilateral DLPFC was not activated during the intervention. A correlation was also found among all participants between the increase in WMC and the activation of the bilateral DLPFC.

Conclusion

The study findings suggest that top‐down attention control during FAM can activate the bilateral DLPFC and increase WMC among meditation novices.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8413779/

 

Different Meditation Types Alter Brain Connectivity Patterns Differently Over the Long Term

psyjdc Leave a comment

Different Meditation Types Alter Brain Connectivity Patters Differently Over the Long Term

 

By John M. de Castro, Ph.D.

 

“[Meditation], regardless of each individual’s chosen object of attention, increases functional connectivity within attentional networks as well as increases connectivity across distributed brain regions serving attention, self-referential, and visual processes.” – Zongpai Zhang

 

There has accumulated a large amount of research demonstrating that meditation practice has significant benefits for psychological, physical, and spiritual wellbeing. One way that meditation 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, meditation practice appears to mold and change the brain, producing psychological, physical, and spiritual benefits.

 

In today’s Research News article “Neuroplasticity within and between Functional Brain Networks in Mental Training Based on Long-Term Meditation.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8393942/ ) Guidotti and colleagues recruited Buddhist monks highly experienced with both focused and open monitoring meditation (average of 16.4 years of practice with an average of 1200 hours of practice per year). They underwent functional Magnetic Resonance Imaging (fMRI) brain scans during 6-minute meditations with focused and with open monitoring techniques.

 

They found that connectivity patterns were associated with the age of the participants during both meditation techniques. On the other hand, connectivity patterns were associated with years of meditation experience differently during focused versus open monitoring meditation. During both meditation types the functional connectivity within the Salience Network of the brain was reduced. During focused meditation there was increased connectivity within the Visual Network. During open monitoring meditation there was increase connectivity within the Executive Network and between the Executive and Language Networks. During open monitoring meditation there was also increase connectivity with Sensorimotor Network and its connections with the Default Mode Network.

 

These results are complicated and involve only experienced meditators. So, it is unknown whether the findings apply to novice or less experienced meditators and it cannot be determined what the differences might be in the brains of these highly experience meditators compared to non-meditators. But the results suggest that during focused and open monitoring meditation types have the same relationships with age related connectivity patterns in the brain while they have different associations with connectivity patterns in association with experience. This suggests that the two meditation types produce different neuroplastic changes in the brain as experience accumulates.

 

So, different meditation types alter brain connectivity patters differently over the long term.

 

“people who meditate may actually have quicker brains than the rest of us. . . meditation can improve your brain’s ability to quickly switch between two main states of consciousness.” – Katie Spalding

 

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

 

Guidotti, R., Del Gratta, C., Perrucci, M. G., Romani, G. L., & Raffone, A. (2021). Neuroplasticity within and between Functional Brain Networks in Mental Training Based on Long-Term Meditation. Brain sciences, 11(8), 1086. https://doi.org/10.3390/brainsci11081086

 

Abstract

(1) The effects of intensive mental training based on meditation on the functional and structural organization of the human brain have been addressed by several neuroscientific studies. However, how large-scale connectivity patterns are affected by long-term practice of the main forms of meditation, Focused Attention (FA) and Open Monitoring (OM), as well as by aging, has not yet been elucidated. (2) Using functional Magnetic Resonance Imaging (fMRI) and multivariate pattern analysis, we investigated the impact of meditation expertise and age on functional connectivity patterns in large-scale brain networks during different meditation styles in long-term meditators. (3) The results show that fMRI connectivity patterns in multiple key brain networks can differentially predict the meditation expertise and age of long-term meditators. Expertise-predictive patterns are differently affected by FA and OM, while age-predictive patterns are not influenced by the meditation form. The FA meditation connectivity pattern modulated by expertise included nodes and connections implicated in focusing, sustaining and monitoring attention, while OM patterns included nodes associated with cognitive control and emotion regulation. (4) The study highlights a long-term effect of meditation practice on multivariate patterns of functional brain connectivity and suggests that meditation expertise is associated with specific neuroplastic changes in connectivity patterns within and between multiple brain networks.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8393942/

 

Increase Relaxation with Focused Meditation while Increasing Activation with Open Monitoring Meditation

psyjdc Leave a comment

Increase Relaxation with Focused Meditation while Increasing Activation with Open Monitoring Meditation

 

By John M. de Castro, Ph.D.

 

“Mindfulness meditation consists of focused attention meditation (FAM) and open monitoring meditation (OMM), both of which reduce activation of the default mode network (DMN) and mind-wandering.” – Masahiro Fujino

 

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. One problem with understanding meditation effects is that there are, a wide variety of meditation techniques and it is not known which work best for affecting different psychological areas.

 

There are a number of different types of meditation. Classically they’ve been characterized on a continuum with the degree and type of attentional focus. In focused attention meditation, the individual practices paying attention to a single meditation object, often the breath. In open monitoring meditation, the individual opens up awareness to everything that’s being experienced including thoughts regardless of its origin. Whether these different meditation types produce different effects has not been extensively studied.

 

In today’s Research News article “Differential Effects of Focused Attention and Open Monitoring Meditation on Autonomic Cardiac Modulation and Cortisol Secretion.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8320390/ ) Ooishi and colleagues recruited healthy adult meditation novices and had them engage in 30 minutes of either focused attention meditation, focusing on the breath, or open monitoring meditation in randomized order separated by 2 hours. They were measured before and after each meditation for heart rate, heart rate variability, respiration rate, and salivary cortisol.

 

They found that focused attention meditation and open monitoring meditation both reduced respiration rates but produced different physiological responses. Analysis of the heart rate variability data revealed changes in the autonomic nervous system’s components of the sympathetic and parasympathetic nervous systems. These analyses suggested that focused attention meditation produced an increase in parasympathetic activation but not sympathetic activation while open monitoring meditation produced an increase in sympathetic activation but not parasympathetic activation and reduced salivary cortisol levels.

 

These findings suggest that focused attention meditation is associated with physiological relaxation while open monitoring meditation is associated with physiological activation. This fits with the findings that focused attention meditation produces greater reductions in anxiety compared to open monitoring meditation. But it needs to be kept in mind that the study employed brief, one-time meditations by meditation naïve participants. It is possible that focused attention meditation is simpler and produces less stress in naive participants while open monitoring meditation is more difficult to learn requiring greater effort and stress. It is clear that this work needs to be replicated with longer term meditation practice.

 

So, increase relaxation with focused meditation while increasing activation with open monitoring meditation.

 

“Focused attention meditation improves focus.  . . an increased consciousness of bodily sensations. The open-monitoring meditation . .  increases our ability to resolve conflicts.  Open Monitoring meditation increases creativity by improving divergent and convergent thinking.” – Daily Meditation

 

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

 

Ooishi, Y., Fujino, M., Inoue, V., Nomura, M., & Kitagawa, N. (2021). Differential Effects of Focused Attention and Open Monitoring Meditation on Autonomic Cardiac Modulation and Cortisol Secretion. Frontiers in Physiology, 12, 675899. https://doi.org/10.3389/fphys.2021.675899

 

Abstract

Mindfulness-based interventions (MBIs) have been used widely as a useful tool for the alleviation of various stress-related symptoms. However, the effects of MBIs on stress-related physiological activity have not yet been ascertained. MBIs primarily consist of focused-attention (FA) and open-monitoring (OM) meditation. Since differing effects of FA and OM meditation on brain activities and cognitive tasks have been mentioned, we hypothesized that FA and OM meditation have also differing effects on stress-related physiological activity. In this study, we examined the effects of FA and OM meditation on autonomic cardiac modulation and cortisol secretion. Forty-one healthy adults (aged 20–46 years) who were meditation novices experienced 30-min FA and OM meditation tasks by listening to instructions. During resting- and meditation-states, electrocardiogram transducers were attached to participants to measure the R-R interval, which were used to evaluate heart rate (HR) and perform heart rate variability (HRV) analyses. Saliva samples were obtained from participants pre- and post-meditation to measure salivary cortisol levels. Results showed that FA meditation induced a decrease in HR and an increase in the root mean square of successive differences (rMSDD). In contrast, OM meditation induced an increase in the standard deviation of the normal-to-normal interval (SDNN) to rMSSD ratio (SDNN/rMSSD) and a decrease in salivary cortisol levels. These results suggest that FA meditation elevates physiological relaxation, whereas OM meditation elevates physiological arousal and reduces stress.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8320390/