Meditation

Long-Term Meditation Changes Large-Scale Brain Connectivity

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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/

 

Improve Long-Covid Symptoms with Mindfulness

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Improve Long-Covid Symptoms with Mindfulness

 

By John M. de Castro, Ph.D.

 

“Everything is created twice, first in the mind and then in reality.” ~Robin S. Sharma

 

Mindfulness training has been shown to improve health and well-being in healthy individuals. They have 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. The COVID-19 pandemic has challenged the mental and physical health of the population. It has created intense stress both for frontline workers but also for people simply isolating at home. Mindfulness is known to decrease the psychological and physical responses to stress  Long COVID-19 symptoms have emerged as a major problem. The evidence that mindfulness practices are effective in treating these long covid symptoms has been accumulating. So, it makes sense to summarize what has been learned.

 

In today’s Research News article “Mindfulness Meditation Interventions for Long COVID: Biobehavioral Gene Expression and Neuroimmune Functioning.” (See summary below or view the full text of the study at:  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9653042/ ) Porter and Jason review and summarize the published research on the effectiveness of mindfulness practices for the treatment of long covid symptoms of Covid-19.

 

They report that the published studies found that mindfulness practices reduce fatigue, anxiety, and depression, and improve physical and mental functioning in long covid. They further postulate that these improvements may be mediated by the effect of mindfulness practices on the immunological and inflammatory systems. These include altering pro-inflammatory and immune function gene expressions.

 

So, the published studies suggest that mindfulness practices improve the mental and physical symptoms of long covid.

 

“Remember the blue sky. It may at times be obscured by clouds, but it is always there.” — Andy Puddicombe

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Porter N, Jason LA. Mindfulness Meditation Interventions for Long COVID: Biobehavioral Gene Expression and Neuroimmune Functioning. Neuropsychiatr Dis Treat. 2022 Nov 8;18:2599-2626. doi: 10.2147/NDT.S379653. PMID: 36387947; PMCID: PMC9653042.

 

Abstract

Some individuals infected with SARS CoV-2 have developed Post-Acute Sequelae of SARS CoV-2 infection (PASC) or what has been referred to as Long COVID. Efforts are underway to find effective treatment strategies for those with Long COVID. One possible approach involves alternative medical interventions, which have been widely used to treat and manage symptoms of a variety of medical problems including post-viral infections. Meditation has been found to reduce fatigue and unrefreshing sleep, and for those with post-viral infections, it has enhanced immunity, and reduced inflammatory-driven pathogenesis. Our article summarizes the literature on what is known about mindfulness meditation interventions, and reviews evidence on how it may apply to those with Long COVID and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). Evidence is reviewed suggesting effective and sustainable outcomes may be achieved for symptomatology and underlying pathology of post-viral fatigue (PASC and ME/CFS).

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9653042/

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

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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/

 

Improve Immune function with a Meditation Retreat

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Improve Immune function with a Meditation Retreat

 

By John M. de Castro, Ph.D.

 

“meditative practice enhanced immune function without activating inflammatory signals. This suggests that meditation, as a behavioral intervention, may be an effective component in treating diseases characterized by increased inflammatory responsiveness with a weakened immune system.” – Vijayendran Chandran

 

The immune system is designed to protect the body from threats like stress, infection, injury, and toxic chemicals. One of its tools is the Inflammatory response. This response works quite well for short-term infections and injuries. But when inflammation is protracted and becomes chronic, it can itself become a threat to health. It can produce autoimmune diseases such as colitis, Chron’s disease, arthritis, heart disease, increased cancer risk, lung disease, sleep disruption, gum disease, decreased bone health, psoriasis, and depression.

 

When the immune system attacks the liver, it produces autoimmune hepatitis which damages the liver. It is rare but affects women four times more often than men. Mind-body techniques such as yoga, Tai Chi and meditation have been shown to adaptively reduce the inflammatory response. So, it would seem reasonable that mindfulness training may be effective in treating autoimmune hepatitis.

 

In today’s Research News article “). Large-scale genomic study reveals robust activation of the immune system following advanced Inner Engineering meditation retreat.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8713789/ ) Chandran and colleagues recruited healthy participants in an 8-day meditation, yoga, and vegan diet retreat. Blood was drawn for genomic analysis 5 weeks before, immediately before and after the retreat and 3 months later.

 

They found that there was lessened activity in genes associated with oxidative stress, detoxification, and cell cycle regulation and increased activity in genes associated with the immune response but no change in genes associated with inflammation. Hence, participation in the meditation, yoga, and vegan diet retreat produced genetic expressions representative of improved immune response without inflammation.

 

So, improve immune function with a meditation retreat.

 

“multiple genes related to the immune system were activated — dramatically — when you do Inner Engineering practices,” – Vijayendran Chandran

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Chandran, V., Bermúdez, M. L., Koka, M., Chandran, B., Pawale, D., Vishnubhotla, R., Alankar, S., Maturi, R., Subramaniam, B., & Sadhasivam, S. (2021). Large-scale genomic study reveals robust activation of the immune system following advanced Inner Engineering meditation retreat. Proceedings of the National Academy of Sciences of the United States of America, 118(51), e2110455118. https://doi.org/10.1073/pnas.2110455118

 

SIGNIFICANCE

Several studies on the impact of yoga and meditation on mental and physical health have demonstrated beneficial effects. However, the potential molecular mechanisms and critical genes involved in this beneficial outcome have yet to be comprehensively elucidated. This study identified and characterized the transcriptional program associated with advanced meditation practice, and we bioinformatically integrated various networks to identify meditation-specific core network. This core network links several immune signaling pathways, and we showed that this core transcriptional profile is dysfunctional in multiple sclerosis and severe COVID-19 infection. Very importantly, we demonstrated that the meditative practice enhanced immune function without activating inflammatory signals. Together, these results make meditation an effective behavioral intervention for treating various conditions associated with a weakened immune system.

Keywords: meditation, immune, Isha yoga, Inner Engineering, COVID-19

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ABSTRACT

The positive impact of meditation on human well-being is well documented, yet its molecular mechanisms are incompletely understood. We applied a comprehensive systems biology approach starting with whole-blood gene expression profiling combined with multilevel bioinformatic analyses to characterize the coexpression, transcriptional, and protein–protein interaction networks to identify a meditation-specific core network after an advanced 8-d Inner Engineering retreat program. We found the response to oxidative stress, detoxification, and cell cycle regulation pathways were down-regulated after meditation. Strikingly, 220 genes directly associated with immune response, including 68 genes related to interferon signaling, were up-regulated, with no significant expression changes in the inflammatory genes. This robust meditation-specific immune response network is significantly dysregulated in multiple sclerosis and severe COVID-19 patients. The work provides a foundation for understanding the effect of meditation and suggests that meditation as a behavioral intervention can voluntarily and nonpharmacologically improve the immune response for treating various conditions associated with excessive or persistent inflammation with a dampened immune system profile.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8713789/

 

Meditation Changes the Structures and Connectivity in the Brain

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Meditation Changes the Structures and Connectivity in the Brain

 

By John M. de Castro, Ph.D.

 

“[Meditation] 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 G. Walton

 

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.

 

In today’s Research News article “Meditation-induced effects on whole-brain structural and effective connectivity.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9232427/ ) De Filippi and colleagues recruited experienced meditators (> 1000 hours of experience) and control non-meditators and scanned their brains with functional Magnetic Resonance Imaging (fMRI) while at rest and while meditating.

 

They found that there were significant differences in whole brain activity between meditation and at rest and that these differences differed between experienced meditators and controls. They also found that experienced meditators had increased connectivity between the left hemisphere sub networks including the somatomotor, dorsal attention, subcortical, and visual networks. Hence, they found neuroplastic changes in the brain produced by meditation practice.

 

“Now, as the popularity of mindfulness grows, brain imaging techniques are revealing that this ancient practice can profoundly change the way different regions of the brain communicate with each other – and therefore how we think – permanently.” – Tom Ireland

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

De Filippi, E., Escrichs, A., Càmara, E., Garrido, C., Marins, T., Sánchez-Fibla, M., Gilson, M., & Deco, G. (2022). Meditation-induced effects on whole-brain structural and effective connectivity. Brain structure & function, 227(6), 2087–2102. https://doi.org/10.1007/s00429-022-02496-9

 

Abstract

In the past decades, there has been a growing scientific interest in characterizing neural correlates of meditation training. Nonetheless, the mechanisms underlying meditation remain elusive. In the present work, we investigated meditation-related changes in functional dynamics and structural connectivity (SC). For this purpose, we scanned experienced meditators and control (naive) subjects using magnetic resonance imaging (MRI) to acquire structural and functional data during two conditions, resting-state and meditation (focused attention on breathing). In this way, we aimed to characterize and distinguish both short-term and long-term modifications in the brain’s structure and function. First, to analyze the fMRI data, we calculated whole-brain effective connectivity (EC) estimates, relying on a dynamical network model to replicate BOLD signals’ spatio-temporal structure, akin to functional connectivity (FC) with lagged correlations. We compared the estimated EC, FC, and SC links as features to train classifiers to predict behavioral conditions and group identity. Then, we performed a network-based analysis of anatomical connectivity. We demonstrated through a machine-learning approach that EC features were more informative than FC and SC solely. We showed that the most informative EC links that discriminated between meditators and controls involved several large-scale networks mainly within the left hemisphere. Moreover, we found that differences in the functional domain were reflected to a smaller extent in changes at the anatomical level as well. The network-based analysis of anatomical pathways revealed strengthened connectivity for meditators compared to controls between four areas in the left hemisphere belonging to the somatomotor, dorsal attention, subcortical and visual networks. Overall, the results of our whole-brain model-based approach revealed a mechanism underlying meditation by providing causal relationships at the structure-function level.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9232427/

 

Priming Improves the Effectiveness of Mindfulness to Reduce Stress and Improve Attention

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Priming Improves the Effectiveness of Mindfulness to Reduce Stress and Improve Attention

 

By John M. de Castro, Ph.D.

 

“Mindfulness is the awareness that arises from paying attention on purpose, in the present moment, and nonjudgmentally.” – Jon Kabat-Zinn

 

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.  Priming occurs when information about a stimulus is presented beforehand. It is not known if priming regarding mindfulness will enhance its effectiveness.

 

In today’s Research News article “The Effect of a Brief Mindfulness Practice on Perceived Stress and Sustained Attention: Does Priming Matter?” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9167905/) Ueberholz and Fiocco

Recruited undergraduate students for an online experiment. They were randomly assigned to either prime pus 10-minute meditation, 10-minute meditation only, or prime only conditions. The prime consisted of a mindfulness infographic including information on mindfulness, brain changes with mindfulness, and behavioral changes with mindfulness. The 10-minute audio guided meditation consisted in breath following and body scan meditations. They were measured before and after training for mindfulness, perceived stress, and sustained attention with a go/no go task.

 

They found that after training both the primed and no-prime meditation groups had significantly lower levels of perceived stress and fewer omission errors than the prime only group. On the other hand only the primed group had improved sustained attention as measured by commission errors and correct responses.

 

The results suggest that as seen in many studies meditation practice reduces perceived stress and improves attention. The results also suggest that priming with mindfulness information prior to meditation increases the impact of meditation on sustained attention.

 

So, potentiate the effects of meditation with priming.

 

“Research indicates mindfulness and meditation can help us allocate cognitive resources more efficiently. Sustained attention in particular appears to be enhanced in those who practice.” – William Stafford

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Ueberholz, R. Y., & Fiocco, A. J. (2022). The Effect of a Brief Mindfulness Practice on Perceived Stress and Sustained Attention: Does Priming Matter?. Mindfulness, 1–12. Advance online publication. https://doi.org/10.1007/s12671-022-01913-8

 

Abstract

Objectives

The objective of the current study was to investigate the effect of a brief mindfulness practice on perceived stress and sustained attention, and to determine whether priming the benefits of mindfulness meditation enhances this effect.

Methods

Two hundred and twenty undergraduate students were randomly assigned to a control condition (CC), a meditation condition (MC), or a priming + meditation condition (PMC). Baseline and post-treatment measures included subjective stress ratings on a visual analog scale (VAS) and performance on a Sustained Attention to Response Task (SART), determined by reaction time coefficient of variability (RTCV) and three measures of accuracy: correct responses, errors of commission, and errors of omission.

Results

Repeated measures analyses revealed that both the MC and the PMC displayed a decline in perceived stress relative to the CC. Analyses further revelated that the MC and PMC displayed fewer errors of omission relative to the CC. However, only the PMC displayed better performance relative to the CC with respect to total correct response and errors of commission. There were no significant between-group differences for RTCV.

Conclusions

These findings are novel and provide a foundation to further investigate the effect of priming on mindfulness engagement and its potential benefits.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9167905/

Different Meditation Techniques Improve Well-Being Through Different Brain Systems

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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

 

Meditation and Mind Wandering Alter Brain Network Activity Differently

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Meditation and Mind Wandering Alter Brain Network Activity Differently

 

By John M. de Castro, Ph.D.

 

“in addition to altering specific functional connectivity, meditation leads to reconfiguration of whole-brain network architecture.” – Shogo Kajimura

 

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.

 

Meditation practice results in a shift in mental processing. It produces a reduction of mind wandering and self-referential thinking and an increase in attention and higher-level thinking. The neural system that underlie mind wandering is termed the Default Mode Network (DMN) and consists in a set of brain structures including medial prefrontal cortex, posterior cingulate, lateral temporal cortex and the hippocampus. The neural system that underlies executive functions such as attention and higher-level thinking is termed the Central Executive Network (CEN) and includes the dorsolateral prefrontal cortex, posterior parietal cortex, and cingulate cortex. The salience network has been shown to direct attention to significant aspects of the environment. Hence the shift in thought process may well be associated with changes in the relationship of these systems.

 

In today’s Research News article “Spectral dynamic causal modeling of mindfulness, mind-wandering, and resting-state in the triple network using fMRI.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8893127/ ) Kim and colleagues recruited healthy adult males and had them pay attention mindfully or allow their minds to wander while having their brains scanned with functional Magnetic Resonance Imaging (fMRI).

 

They found that during mindfulness the central executive network had enhanced connectivity with the salience network through the default mode network. On the other hand, during mind wandering the default mode network had greater connectivity to the central executive network. This suggests that during mindfulness the neural systems enhanced attention to significant stimuli while during mind wandering the neural systems enhanced attention to internally generated thinking.

 

Hence, the brain’s network activity is different during different mind states.

 

“meditation states in long-term practitioners induced highly specific connectivity patterns of fronto-parietal and medial frontal networks relative to rest. This observation generally indicates that the executive processes of attentional control and cognitive monitoring have a specific role in supporting brain states of meditation.” – Juliana Yordanova

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Kim, H. C., & Lee, J. H. (2022). Spectral dynamic causal modeling of mindfulness, mind-wandering, and resting-state in the triple network using fMRI. Neuroreport, 33(5), 221–226. https://doi.org/10.1097/WNR.0000000000001772

 

Objective

Functional connectivity in intrinsic brain networks, namely, the triple network, which includes the salience network, default mode network (DMN) and central executive network (CEN), has been suggested as prominent, major networks involved in human cognition and mental state–mindfulness, mind-wandering and resting-state. Despite the established roles of functional connections within and between intrinsic networks, there has been limited research on the effective connectivity of mindfulness, mind-wandering and resting-state using the triple network, as well as on their direct comparisons.

Methods

We employed spectral dynamic causal modeling to compare effective connectivity patterns across mindfulness (i.e. attention focused on physical sensations of breathing), mind-wandering (i.e. connecting thoughts) and resting-state (i.e. relaxing while remaining calm and awake) conditions using functional MRI data of healthy subjects who underwent ambulatory training by practicing mindfulness and mind-wandering (N = 59).

Results

When comparing mindfulness and mindwandering conditions, our analysis results revealed that salience network and CEN interacted depending on mindfulness or mind-wandering. When mindfulness or mind-wandering was compared to resting-state, mindfulness increased the effective connectivity from the left CEN to salience network through DMN, whereas mindwandering increased the effective connectivity from the DMN to right CEN.

Conclusion

To the best of our knowledge, this is the first study to examine possible differences in effective connectivity patterns among mindfulness, mind-wandering and resting-state using the triple network. We believe that our findings will provide deeper insights into the neural substrates of mindfulness compared to mind-wandering and resting-state.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8893127/

 

Adverse Events are Common with Meditation

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Adverse Events are Common with Meditation

 

By John M. de Castro, Ph.D.

 

“Symptoms such as pain, pressure, involuntary movements, headaches, fatigue, weakness, gastrointestinal problems, and dizziness were all reported in people who were enthusiastic meditators.” – TimesofIndia

 

People begin meditation with the misconception that meditation will help them escape from their problems. Nothing could be further from the truth. In fact, meditation does the exact opposite, forcing the meditator to confront their issues. In meditation, the practitioner tries to quiet the mind. But, in that relaxed quiet state, powerful, highly emotionally charged thoughts and memories are likely to emerge. The strength here is that meditation is a wonderful occasion to begin to deal with these issues. But often the thoughts or memories are overwhelming. At times, professional therapeutic intervention may be needed.

 

states. There are, however, few systematic studies of the extent of negative experiences. In general, the research has reported that unwanted (negative) experiences are quite common with meditators, but for the most part, are short-lived and mild. There is, however, a great need for more research into the nature of the experiences that occur during meditation.

 

In today’s Research News article “Prevalence, predictors and types of unpleasant and adverse effects of meditation in regular meditators: international cross-sectional study.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8693904/ ) and colleagues recruited online adult meditation practitioners and had them compete a measure of previous mental disorders, mindfulness, repetitive negative thinking, neuroticism, and meditation-related adverse events.

 

They found that 22% of the participants reported meditation-related adverse events with 13% of the participants reporting moderate to severe adverse events. Participants with previous mental disorders were more likely to report adverse events and with higher severity. Participants with repetitive negative thinking and neuroticism were also more likely to report adverse events while mindfulness reduced the likelihood of adverse events. Adverse events were more likely to occur during a meditation retreat.

 

So, adverse events are common with meditation especially in meditators who have a history of rumination and prior mental disorders. It is unclear, however, whether these experiences lead to healing or further suffering. Regardless there is a need for care with meditation particularly with people with preexisting mental issues.

 

“The fact that meditation can cause altered states, for example, isn’t news: It’s something that people have been talking about for centuries. What we haven’t been very good about is measuring the impact and significance of these states on individual participants.” – Willoughby  Britton

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Pauly, L., Bergmann, N., Hahne, I., Pux, S., Hahn, E., Ta, T., Rapp, M., & Böge, K. (2021). Prevalence, predictors and types of unpleasant and adverse effects of meditation in regular meditators: international cross-sectional study. BJPsych Open, 8(1), e11. https://doi.org/10.1192/bjo.2021.1066

 

Abstract

Background

Meditation is commonly implemented in psychological therapies since the ‘third wave’ of cognitive–behavioural therapy has increased the focus on mindfulness-based interventions. Although extensive research literature demonstrates its benefits, little is known about potential adverse effects.

Aims

The aim of this study is to report the prevalence, type and severity of particularly unpleasant meditation-related experiences in the largest cross-sectional study on this topic to date, with 1370 regular meditators.

Method

The participants were asked whether they ever encountered particularly unpleasant experiences as a result of their meditation experience. For the first time, the type and severity of those experiences were assessed and the association with several predictors, such as pre-existing mental disorders, were explored via logistic and linear regression.

Results

Similar to previous studies, 22% of participants (95% CI 20–24) reported having encountered unpleasant meditation-related experiences, and 13% of participants (95% CI 3–5) reported experiences that were categorised as adverse. Those were mostly of affective, somatic and cognitive nature. Unpleasant meditation-related experiences were more likely to occur in participants with pre-existing mental illnesses (P = 0.000, 95% CI 1.25–2.12).

Conclusions

This study demonstrates that unpleasant meditation-related experiences are prevalent among meditators and, to a relevant extent, severe enough to warrant further scientific inquiry. Longitudinal studies are needed to examine whether the unpleasant meditation-related experiences are merely negative and thus should be avoided, or are an inherent part of the contemplative path.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8693904/

 

Improve Cognition at Work with Mindfulness

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Improve Cognition at Work with Mindfulness

 

By John M. de Castro, Ph.D.

 

“mindfulness has a variety of benefits — many of which can positively impact an individual’s job performance.” –  Headspace

 

Work is very important for our health and well-being. We spend approximately 25% of our adult lives at work. Indeed, the work environment has even become an important part of our social lives, with friendships and leisure time activities often attached to the people we work with. But work-related stress is epidemic in the western workplace. Almost two thirds of workers reporting high levels of stress at work. This stress can result in impaired health and can result in burnout; producing fatigue, cynicism, and professional inefficacy. To help overcome unhappiness, stress, and burnout, mindfulness practices have been implemented in the workplace.

 

In today’s Research News article “Mindfulness and music interventions in the workplace: assessment of sustained attention and working memory using a crowdsourcing approach.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9044827/ ) Axelsen and colleagues recruited adult workers online and randomly assigned them to a wait-list control condition, or to receive 10 minutes daily for 30 days of mindfulness training with the “Headspace” smartphone app, or to listen to music with a smartphone app.  Before and after the interventions the participants completed a measure of perceived stress and also engaged in playing cognitive games on their smartphones which were designed to measure sustained attention and working memory.

 

They found that in comparison to baseline and the wait-list control group, both the mindfulness and music groups had significant reductions in perceived stress. Only the mindfulness group had significant increases in sustained attention and working memory. Hence, feelings of being stressed can be reduced by either mindfulness or listening to music. But mindfulness training also improves cognitive performance in workers. It is assumed but not measured that increased sustained attention in particular would produce improvements in work performance.

 

So, mindfulness training on smartphones can improve workers memory and attention.

 

“Meditating at work can reduce stress and frustration, while also boosting focus, compassion, energy, and productivity.” – Headspace

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Axelsen, J. L., Meline, J., Staiano, W., & Kirk, U. (2022). Mindfulness and music interventions in the workplace: assessment of sustained attention and working memory using a crowdsourcing approach. BMC psychology, 10(1), 108. https://doi.org/10.1186/s40359-022-00810-y

 

Abstract

Background

Occupational stress has huge financial as well as human costs. Application of crowdsourcing might be a way to strengthen the investigation of occupational mental health. Therefore, the aim of the study was to assess Danish employees’ stress and cognition by relying on a crowdsourcing approach, as well as investigating the effect of a 30-day mindfulness and music intervention.

Methods

We translated well-validated neuropsychological laboratory- and task-based paradigms into an app-based platform using cognitive games measuring sustained attention and working memory and measuring stress via. Cohen’s Perceived Stress Scale. A total of 623 healthy volunteers from Danish companies participated in the study and were randomized into three groups, which consisted of a 30-day intervention of either mindfulness or music, or a non-intervention control group.

Results

Participants in the mindfulness group showed a significant improvement in the coefficient of sustained attention, working memory capacity and perceived stress (p < .001). The music group showed a 38% decrease of self-perceived stress. The control group showed no difference from pre to post in the survey or cognitive outcome measures. Furthermore, there was a significant correlation between usage of the mindfulness and music app and elevated score on both the cognitive games and the perceived stress scale.

Conclusion

The study supports the nascent field of crowdsourcing by being able to replicate data collected in previous well-controlled laboratory studies from a range of experimental cognitive tasks, making it an effective alternative. It also supports mindfulness as an effective intervention in improving mental health in the workplace.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9044827/