Meditation

Meditation is an Effective Treatment for a Variety of Medical Conditions

psyjdc Leave a comment

Meditation is an Effective Treatment for a Variety of Medical Conditions

 

By John M. de Castro, Ph.D.

 

“Mindfulness is not a cure-all. . . . There have been thousands of studies showing that there are psychological and physical benefits to mindfulness meditation, but the intention . . . is not to cure the disease or fully treat the symptoms, but to treat the whole person — and that includes their mental and emotional well-being — so they can live in greater health and joy.” – Men’s Health

 

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

 

Over the last few decades, a vast amount of research has been published on the benefits of meditation on the mental and physical health of the practitioners. So, it makes sense to step back and summarize what has been learned.

 

In today’s Research News article “Systematic Review for the Medical Applications of Meditation in Randomized Controlled Trials.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8834867/ ) Kim and colleagues review and summarize the 104 published randomized controlled trials on the benefits of meditation practices on mental and physical well-being.

 

They report that the published research found that different studies report varying results but the most common significant benefits of meditation practice were improvements in fatigue, sleep quality, quality of life, stress, PTSD symptoms, blood pressure, intraocular pressure, and depression. In general yoga-based practices produced slightly better results than mindfulness based techniques,

 

Hence, meditation practices have been found to help improve mental and physical well-being.

 

“meditation can improve mental health and reduce symptoms associated with chronic conditions.” – Ashley Welch

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Kim, D. Y., Hong, S. H., Jang, S. H., Park, S. H., Noh, J. H., Seok, J. M., Jo, H. J., Son, C. G., & Lee, E. J. (2022). Systematic Review for the Medical Applications of Meditation in Randomized Controlled Trials. International journal of environmental research and public health, 19(3), 1244. https://doi.org/10.3390/ijerph19031244

 

Abstract

Background: Meditation has been increasingly adapted for healthy populations and participants with diseases. Its beneficial effects are still challenging to determine due to the heterogeneity and methodological obstacles regarding medical applications. This study aimed to integrate the features of therapeutic meditation in randomized controlled trials (RCTs). Methods: We conducted a systematic review of RCTs with meditation for populations with diseases using the PubMed database through June 2021. We analyzed the characteristics of the diseases/disorders, participants, measurements, and their overall benefits. Results: Among a total of 4855 references, 104 RCTs were determined and mainly applied mindfulness-based (51 RCTs), yoga-based (32 RCTs), and transcendental meditation (14 RCTs) to 10,139 patient-participants. These RCTs were conducted for participants with a total of 45 kinds of disorders; the most frequent being cancer, followed by musculoskeletal and connective tissue diseases and affective mood disorder. Seven symptoms or signs were frequently assessed: depressive mood, feeling anxious, quality of life, stress, sleep, pain, and fatigue. The RCTs showed a higher ratio of positive outcomes for sleep (73.9%) and fatigue (68.4%). Conclusions: This systematic review produced the comprehensive features of RCTs for therapeutic meditation. These results will help physicians and researchers further study clinical adaptations in the future as reference data.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8834867/

 

Improve Physical and Mental Health during Aging with Mindfulness

psyjdc Leave a comment

 

Improve Physical and Mental Health during Aging with Mindfulness

 

By John M. de Castro, Ph.D.

 

“The healthier and more active one’s lifestyle, the more likely he or she will maintain cognitive performance over time. And meditation may be a key ingredient for ensuring brain health and maintaining good mental performance.“ – Grace Bullock

 

The aging process involves a systematic progressive decline in every system in the body, the brain included. The elderly frequently have problems with attention, thinking, and memory abilities, known as mild cognitive impairment. An encouraging new development is that mindfulness practices such as meditation training and mindful movement practices can significantly reduce these declines in cognitive ability. In addition, it has been found that

mindfulness practices reduce the deterioration of the brain that occurs with aging restraining the loss of neural tissue. Indeed, the brains of practitioners of meditation have been found to degenerate less with aging than non-practitioners.

 

In today’s Research News article “Long-Term Physical Exercise and Mindfulness Practice in an Aging Population.” (See summary below or view the full text of the study at: https://www.frontiersin.org/articles/10.3389/fpsyg.2020.00358/full?utm_source=F-AAE&utm_medium=EMLF&utm_campaign=MRK_1832518_a0P58000000G0YfEAK_Psycho_20220317_arts_A&utm_source=sfmc&utm_medium=email&utm_campaign=Article+Alerts+V4.1-Frontiers&utm_term=%%%3d+++++++REDIRECTTO(+++++CONCAT(%27http%3a%2f%2fjournal.frontiersin.org%2farticle%2f%27%2c+TreatAsContent(field(%40article%2c+%27DOI__c%27))%2c+%27%2ffull%3futm_source%3dF-AAE%26utm_medium%3dEMLF%26utm_campaign%3dMRK_%27%2c+TreatAsContent(JobID)%2c+%27_%27%2c+TreatAsContent(%40FieldId)%2c+%27_%27%2c+TreatAsContent(Substring(Replace(Field(%40field%2c+%27Name%27)%2c+%27+%27%2c+%27%27)%2c+0%2c+6))% ) Tang and colleagues compared older adults (average age of 64 years) who were either experienced (> 10 years) meditators or exercisers on physical, mental, immune, stress, and brain plasticity measures.

 

They report that the older adults who exercised had superior cardiovascular and respiratory fitness. But the older adults who meditated had superior physiological relaxation, quality of life, immune response, stress response, and brain plasticity. They conclude that the optimum results for older adults would be produced by combining meditation and exercise. Regardless, it is clear that meditation restrains the physical and mental deterioration with aging.

 

“it’s heartening to know that age may not only bring wisdom or sore knees, but also more mindfulness.” – Jenn Director Knudsen 

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Tang Y-Y, Fan Y, Lu Q, Tan L-H, Tang R, Kaplan RM, Pinho MC, Thomas BP, Chen K, Friston KJ and Reiman EM (2020) Long-Term Physical Exercise and Mindfulness Practice in an Aging Population. Front. Psychol. 11:358. doi: 10.3389/fpsyg.2020.00358

 

Previous studies have shown that physical exercise and mindfulness meditation can both lead to improvement in physical and mental health. However, it is unclear whether these two forms of training share the same underlying mechanisms. We compared two groups of older adults with 10 years of mindfulness meditation (integrative body-mind training, IBMT) or physical exercise (PE) experience to demonstrate their effects on brain, physiology and behavior. Healthy older adults were randomly selected from a large community health project and the groups were compared on measures of quality of life, autonomic activity (heart rate, heart rate variability, skin conductance response, respiratory amplitude/rate), immune function (secretory Immunoglobulin A, sIgA), stress hormone (cortisol) and brain imaging (resting state functional connectivity, structural differences). In comparison with PE, we found significantly higher ratings for the IBMT group on dimensions of life quality. Parasympathetic activity indexed by skin conductance response and high-frequency heart rate variability also showed more favorable outcomes in the IBMT group. However, the PE group showed lower basal heart rate and greater chest respiratory amplitude. Basal sIgA level was significantly higher and cortisol concentration was lower in the IBMT group. Lastly, the IBMT group had stronger brain connectivity between the dorsal anterior cingulate cortex (dACC) and the striatum at resting state, as well as greater volume of gray matter in the striatum. Our results indicate that mindfulness meditation and physical exercise function in part by different mechanisms, with PE increasing physical fitness and IBMT inducing plasticity in the central nervous systems. These findings suggest combining physical and mental training may achieve better health and quality of life results for an aging population.

https://www.frontiersin.org/articles/10.3389/fpsyg.2020.00358/full?utm_source=F-AAE&utm_medium=EMLF&utm_campaign=MRK_1832518_a0P58000000G0YfEAK_Psycho_20220317_arts_A&utm_source=sfmc&utm_medium=email&utm_campaign=Article+Alerts+V4.1-Frontiers&utm_term=%%%3d+++++++REDIRECTTO(+++++CONCAT(%27http%3a%2f%2fjournal.frontiersin.org%2farticle%2f%27%2c+TreatAsContent(field(%40article%2c+%27DOI__c%27))%2c+%27%2ffull%3futm_source%3dF-AAE%26utm_medium%3dEMLF%26utm_campaign%3dMRK_%27%2c+TreatAsContent(JobID)%2c+%27_%27%2c+TreatAsContent(%40FieldId)%2c+%27_%27%2c+TreatAsContent(Substring(Replace(Field(%40field%2c+%27Name%27)%2c+%27+%27%2c+%27%27)%2c+0%2c+6))%

 

Meditation Increases a Biological Marker that Protects Against Age-Related Decline

psyjdc Leave a comment

Meditation Increases a Biological Marker that Protects Against Age-Related Decline

 

By John M. de Castro, Ph.D.

 

“meditation may have salutary effects on telomere length by reducing cognitive stress and stress arousal and increasing positive states of mind and hormonal factors that may promote telomere maintenance.” – Elissa Epel

 

One of the most exciting findings in molecular biology in recent years was the discovery of the telomere. This is a component of the DNA molecule that is attached to the ends of the strands. Recent genetic research has suggested that the telomere and its regulation is the biological mechanism that produces aging. As we age the tail of the DNA molecule called the telomere shortens. When it gets very short cells have a more and more difficult time reproducing and become more likely to produce defective cells. On a cellular basis, this is what produces aging. As we get older the new cells produced are more and more likely to be defective. The shortening of the telomere occurs each time the cell is replaced. So, slowly as we age it gets shorter and shorter.

 

Fortunately, there is a mechanism to protect the telomere. There is an enzyme in the body called telomerase that helps to prevent shortening of the telomere. It also promotes cell survival and enhances stress-resistance.  Research suggests that processes that increase telomerase activity tend to slow the aging process by protecting the telomere.  One activity that seems to increase telomerase activity and protect telomere length is mindfulness practice. Hence, engaging in mindfulness practices may protect the telomere and thereby slow the aging process.

 

In today’s Research News article “Impact of Meditation-Based Lifestyle Practices on Mindfulness, Wellbeing, and Plasma Telomerase Levels: A Case-Control Study.” (See summary below or view the full text of the study at: https://www.frontiersin.org/articles/10.3389/fpsyg.2022.846085/full?utm_source=F-AAE&utm_medium=EMLF&utm_campaign=MRK_1827462_a0P58000000G0YfEAK_Psycho_20220308_arts_A&utm_source=sfmc&utm_medium=email&utm_campaign=Article+Alerts+V4.1-Frontiers&utm_term=%%%3d++++++REDIRECTTO(+++++CONCAT(%27http%3a%2f%2fjournal.frontiersin.org%2farticle%2f%27%2c+TreatAsContent(field(%40article%2c+%27DOI__c%27))%2c+%27%2ffull%3futm_source%3dF-AAE%26utm_medium%3dEMLF%26utm_campaign%3dMRK_%27%2c+TreatAsContent(JobID)%2c+%27_%27%2c+TreatAsContent(%40FieldId)%2c+%27_%27%2c+TreatAsContent(Substring(Replace(Field(%40field%2c+%27Name%27)%2c+%27+%27%2c+%27%27)%2c+0%2c+6))%2c ) Dasanayaka  and colleagues examine the telomerase activity in long-term meditators in comparison to matched control participants.

 

They report that the long-term meditators have significantly higher levels of telomerase in their bloodstream, mindfulness, and quality of life. They also found that the higher the levels of mindfulness the higher the levels of telomerase.

 

These findings support the contention that meditation can help protect against the physical and mental deterioration that occurs with aging by increasing the levels of telomerase thereby protecting the telomere.

 

“Meditation also helps to protect our telomeres, the protective caps at the end of our chromosomes. Telomeres are longest when we’re young and naturally shorten as we age. Shorter telomeres are associated with stress and higher risk for many diseases including cancer, and depend on the telomerase enzyme to enable them to rebuild and repair.” – Paula Watkins

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Dasanayaka NN, Sirisena ND and Samaranayake N (2022) Impact of Meditation-Based Lifestyle Practices on Mindfulness, Wellbeing, and Plasma Telomerase Levels: A Case-Control Study. Front. Psychol. 13:846085. doi: 10.3389/fpsyg.2022.846085

 

Meditation involves psychophysical training which can result in a range of benefits including creating a calm mind and increasing self-awareness, relaxation, and tranquility. Increasing evidence, mostly based on short-term focused interventions, suggests that meditation-based activities may also have favorable effects on physical wellbeing including cellular aging. Hence, the aim of this study was to investigate if continued practice of meditation benefited quality of life, state of mindfulness, and plasma telomerase level in healthy adults. 30 long-term and skilled meditators were recruited from meditation centers in different parts of the island following a two-tier screening process of 70 eligible participants and 30 age- and gender-matched healthy non-meditators were recruited from the community. Mindfulness level and the quality of life were measured using the Five Facet Mindfulness Questionnaire (FFMQ) and Quality of Life Questionnaire, respectively, while the levels of plasma telomerase enzyme were measured using Enzyme-Linked Immunosorbent Assay. Skilled meditators had a better mindfulness level (p < 0.001) and quality of life (QOL; p < 0.001) than those in the comparison group. Similarly, higher plasma telomerase levels were observed in skilled meditators compared to non-meditators (p = 0.002). Trait mindfulness level and plasma telomerase level showed a significant relationship with the duration of meditation practice (p = 0.046 and p = 0.011, respectively). Regression analysis indicated that trait mindfulness level (p < 0.001) significantly predicts the plasma telomerase level. The findings of this comparative study add to the evidence on sustained benefits of meditation on wellbeing and healthy aging and supports incorporating meditation-based activities into lifestyle practices.

https://www.frontiersin.org/articles/10.3389/fpsyg.2022.846085/full?utm_source=F-AAE&utm_medium=EMLF&utm_campaign=MRK_1827462_a0P58000000G0YfEAK_Psycho_20220308_arts_A&utm_source=sfmc&utm_medium=email&utm_campaign=Article+Alerts+V4.1-Frontiers&utm_term=%%%3d++++++REDIRECTTO(+++++CONCAT(%27http%3a%2f%2fjournal.frontiersin.org%2farticle%2f%27%2c+TreatAsContent(field(%40article%2c+%27DOI__c%27))%2c+%27%2ffull%3futm_source%3dF-AAE%26utm_medium%3dEMLF%26utm_campaign%3dMRK_%27%2c+TreatAsContent(JobID)%2c+%27_%27%2c+TreatAsContent(%40FieldId)%2c+%27_%27%2c+TreatAsContent(Substring(Replace(Field(%40field%2c+%27Name%27)%2c+%27+%27%2c+%27%27)%2c+0%2c+6))%2c

 

Reduce Aggression in Law Enforcement Officers with Mindfulness

psyjdc Leave a comment

Reduce Aggression in Law Enforcement Officers with Mindfulness

 

By John M. de Castro, Ph.D.

 

“Law enforcement officers (LEOs) are exposed to significant stressors, elevating their risk for aggression and excessive use of force, as well as mental health consequences, including post-traumatic stress disorder, burnout, alcohol misuse, depression, and suicide. Mindfulness training is a promising approach with high-stress populations that has been shown effective for increasing resilience and improving negative mental health outcomes common among LEOs.” – Michael Christopher

 

Policing is a very stressful occupation. Stress in police can result from role conflicts between serving the public, enforcing the law, and upholding ethical standards and personal responsibilities as spouse, parent, and friend. Stress also results from, threats to health and safety, boredom, responsibility for protecting the lives of others, continual exposure to people in pain or distress, the need to control emotions even when provoked, the presence of a gun, even during off-duty hours, and the fragmented nature of police work, with only rare opportunities to follow cases to conclusion or even to obtain feedback or follow-up information.

 

This stress can have serious consequences for the individual and in turn for society. Police officers have one of the highest suicide rates in the nation, possibly the highest. They have a high divorce rate, about second in the nation. They are problem drinkers about twice as often as the general population. This is a major problem as stress and the resultant complications can impact job performance, which sometimes involve life or death situations. It can also lead to increased aggressiveness. Mindfulness training has been shown to improve the physiological and psychological responses to stress. So, it is likely that mindfulness training with police can help them cope with the stress, improve their psychological well-being, and reduce aggressiveness.

 

In today’s Research News article “Differential impact of mindfulness practices on aggression among law enforcement officers.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8274577/ ) Ribeiro and colleagues recruited meditation naïve law enforcement officers and randomly assigned them to a wait-list control condition or to receive 8 weekly 2-hour sessions of Mindfulness-Based Resilience Training (MBRT) including body scan, sitting and walking meditations, mindful movement, and group discussion along with home practice. They were measured before and after practice for meditation practice and aggression, including physical aggression, verbal aggression, anger, and hostility.

 

They found that adherence to home practice was sporadic, with participants practicing at home on average for 14 days of the 56 days available. Nevertheless, they found that in comparison to baseline and the wait-list control condition, Mindfulness-Based Resilience Training (MBRT) produced a significant decrease in the levels of aggression. They also found that the higher the frequency of home meditation practices, the greater the total duration of home practice, and the greater the number of days practiced at home the lower the levels of aggression. This was true for all of the meditation practices.

 

These are interesting results that suggest that mindfulness practices reduce aggression in law enforcement officers even when practice is sporadic. Even though home practice was low, the amounts of that practice predicted the levels of reduction in aggression, the more home practice, the lower the aggression. But there were no follow-up measurements to ascertain if the effects are lasting and there was no collection of on-the-job aggression to ascertain if this reduction of aggression obtained with paper and pencil measures translates to the real world of policing. Hence, the results must be interpreted cautiously. More intensive research in the future is called for as reducing aggression in law enforcement officers would probably make them more effective and reduce burnout.

 

So, reduce aggression in law enforcement officers with mindfulness.

 

“an 8-week mindfulness intervention for police officers led to self-reported improvements in distress, mental health, and sleep, and a lower [cortisol awakening response].” – Daniel W. Grupe

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Ribeiro, L., Colgan, D. D., Hoke, C. K., Hunsinger, M., Bowen, S., Oken, B. S., & Christopher, M. S. (2020). Differential impact of mindfulness practices on aggression among law enforcement officers. Mindfulness, 11(3), 734–745. https://doi.org/10.1007/s12671-019-01289-2

 

Abstract

Objectives:

Home-based mindfulness practice is a common component of formal mindfulness training (MT) protocols. Obtaining objective data from home-based mindfulness practice is challenging. Interpreting associations between home-based mindfulness practice and clinically impactful outcomes is complicated given the variability in recommendations in length, frequency, and type of practice. In this exploratory study, adherence to home-based practices of Mindfulness-Based Resilience Training (MBRT) was studied in order to evaluate associations with clinical outcomes.

Methods:

Home practices from 24 (92% male, non-Hispanic white, aged M = 43.20 years) law enforcement officers (LEOs) from the urban Pacific Northwest enrolled in a feasibility and efficacy trial of MBRT were studied using an objective tracking device and self-report data. Outcomes included adherence to home-based mindfulness practices and self-reported aggression.

Results:

Participants completed 59.12% of the frequency amount of practice assigned in the MBRT curriculum. Frequency of practice was associated with decreased aggression, adjusted R2 = .41, F(3,23) = 6.14, p = .004. Duration of practice also predicted decreased aggression, adjusted R2 = .33, F(3,23) = 4.76, p = .011.

Conclusions:

Home-based MBRT practices for LEOs, even at low rates of adherence, may reduce aggression. MTs may show beneficial effects for other populations presented with challenges to engage in regular MT practices.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8274577/

Mindfulness Components of Decentering, Acceptance, and Non-Attachment are All Subsumed as a “Delusion of Me”

psyjdc Leave a comment

Mindfulness Components of Decentering, Acceptance, and Non-Attachment are All Subsumed as a “Delusion of Me”

 

By John M. de Castro, Ph.D.

 

“You’re not really selfless- I am!” – Joseph Goldstein

 

Most people strongly believe that they have a self, an ego. Reflecting this, our language is replete with concepts that contain self; oneself, myself, himself, herself, ourselves, self-concept, self-esteem, self-love, self-regard, selfless, selfish, selfhood, selfie, etc. But particularly note the term self-concept. It directly states that self is a concept. It is not a thing. It is an idea.  This is important, as most of us think that there is a thing that is the self, when, in fact, there is not. A concept is a way to summarize a set of phenomena that appear to have common properties, such as fruit, or more abstractly, attention. But note there is not a single entity that is fruit. It is a set of things that are grouped together by common biological factors. The idea of attention is not a thing. Rather it refers to a set of processes. This is also true of the concept of self.

 

The problem with the idea of a self is that it can lead to not seeing things as they are, a rigidity in approaching the world, and psychological distress. Mindfulness practices are thought to alter or even eliminate the idea of a self. These practices are thought to change different components of the self, producing decentering, acceptance, and non-attachment. But the meanings of these concepts have major overlaps. This suggests that they may be measuring in part a similar component. A statistical method to tease out common factors is called factor analysis. Perhaps it can identify the common component contained in decentering, acceptance, and non-attachment.

 

In today’s Research News article “Decentering, Acceptance, and Non-Attachment: Challenging the Question “Is It Me?”.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8637104/ ) Soler and colleagues recruited adults online who were meditators and meditation naïve participants and had them complete an online survey measuring mindfulness, decentering, non-attachment, resilience, anxiety, depression, and stress. These data were then subjected to an exploratory and confirmatory factor analyses.

 

They identified a general factor that subsumed the three constructs of decentering, acceptance, and non-attachment. When the shared general factor was present the individual differences between the concepts were minimal. They labelled the general factor as “Delusion of Me”. This refers to seeing that the self is a delusion. Decentering reflects just that, acceptance reflects seeing things as they are, and non-attachment reflects an absence of a fixation on ideas like those generated by a self. So, all three concepts contribute to the dissolution of an idea of self and the advancement of an understanding that the self is but a delusion.

 

They found that the higher the levels of this general factor, “Delusion of Me,” the higher the levels of resilience. This suggests that the idea of self reduces latitude of actions making one less resilient. This in turn explains why mindfulness training significantly improves resilience. In addition, the higher the levels of “Delusion of Me” the lower the levels of depression. This suggests that the idea that there is a self leads to a rigidity in processing experiences producing expectations of how things should be, and this contributes to feelings of depression. This also explains why mindfulness training significantly reduces depression.

 

These findings are correlational and as such do not determine causation. It is possible that a lack of resilience and the presence of depression produces a concept of “Me”. But the findings open up a potentially fruitful avenue of research by specifying a specific conceptual variable which may contribute to psychological well-being. This may lead to more focused therapeutic techniques that may better treat mental illness and contribute to human thriving.

 

So, mindfulness components of decentering, acceptance, and non-attachment are all subsumed as a “Delusion of Me”.

 

“delusion is a state of not realizing what it is that we actually know, and what we don’t know — and not asking the right questions. It is a state of failure or resistance to see things as they actually are.” – Sharon Salzberg

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Soler J, Montero-Marin J, Domínguez-Clavé E, González S, Pascual JC, Cebolla A, Demarzo M, Analayo B, García-Campayo J. Decentering, Acceptance, and Non-Attachment: Challenging the Question “Is It Me?”. Front Psychiatry. 2021 Nov 18;12:659835. doi: 10.3389/fpsyt.2021.659835. PMID: 34867498; PMCID: PMC8637104.

 

Abstract

Among mindfulness measures the three constructs acceptance, decentering, and non-attachment are psychometrically closely related, despite their apparent semantic differences. These three facets present robust psychometric features and can be considered core themes in most “third wave” clinical models. The aim of the present study was to explore the apparently different content domains (acceptance, decentering, and non-attachment) by administering various psychometric scales in a large sample of 608 volunteers. Resilience and depression were also assessed. Exploratory and confirmatory factor analyses performed in two randomly selected subsamples showed a bifactor approximation. The explained common variance suggested a unidimensional nature for the general factor, with good psychometric properties, which we named “Delusion of Me” (DoM). This construct is also strongly correlated with resilience and depression, and appears to be a solid latent general construct closely related to the concept of “ego.” DoM emerges as a potentially transdiagnostic construct with influence on well-being and clinical indexes such as resilience and depression. Further studies should analyze the potential utility of this new construct at a therapeutic level.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8637104/

 

Spirituality is Associated with Awe/Gratitude and Well-Being during the Covid-19 Pandemic

psyjdc Leave a comment

Spirituality is Associated with Awe/Gratitude and Well-Being during the Covid-19 Pandemic

 

By John M. de Castro, Ph.D.

 

“During the COVID-19 pandemic . . . spirituality and religious practices are a protective factor connected not only with psychological and mental but also physical health.” – Ilaria Coppola

 

The COVID-19 pandemic has challenged the mental and physical health of the population. It has created intense stress for frontline workers but also for people simply isolating at home. Religion and spirituality have been promulgated as solutions to the challenges of life. There have been a number of studies of the influence of religiosity and spirituality on the physical and psychological well-being of practitioners mostly showing positive benefits, with spirituality encouraging personal growth and mental health. Perhaps, then, spirituality can be helpful in coping with the mental and physical challenges resulting from the COVID-19 pandemic.

 

In today’s Research News article “Awe/Gratitude as an Experiential Aspect of Spirituality and Its Association to Perceived Positive Changes During the COVID-19 Pandemic.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8095710/ ) Büssing and colleagues recruited adults online during the Covid-19 pandemic and had them complete online measures of awe/gratitude, perception of changes, well-being, life satisfaction, perception of burden, spirituality, and physical activities.

 

They found that Awe/Gratitude was associated with higher levels of frequency of meditation practice, female gender, life satisfaction and well-being, faith as a stronghold, and life reflection because of the pandemic and lower levels of perceived burden. Well-being was found to be significantly associated with higher life satisfaction, nature/silence/contemplation, and awe/gratitude and with lower perceived burden. A mediation analysis revealed that awe/gratitude mediated the associations between nature/silence/contemplation and well-being, between well-being and relationships, and between well-being and reflections.

 

These findings must be interpreted cautiously as they were correlational and as such causation cannot be determined. But they demonstrated that perceptions of awe followed by feelings of gratitude during the Covid-19 pandemic were higher in people who were religions, meditated frequently, and with religious backgrounds. But awe/gratitude did not moderate the negative consequences of the pandemic but rather appear to be associated with higher levels of the positive aspects of life including spirituality. Awe/gratitude itself is a component of spiritual awareness and is promoted by spiritual practices such as meditation and it appears to be associated higher levels of well-being even in the face of a pandemic.

 

So, spirituality is associated with awe/gratitude and well-being during the Covid-19 pandemic.

 

“One wonders if social distancing might become the new normal, so scheduling time for spiritual life-building can become part of the change of filling the void of loneliness.” – William Creech

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Büssing, A., Rodrigues Recchia, D., Dienberg, T., Surzykiewicz, J., & Baumann, K. (2021). Awe/Gratitude as an Experiential Aspect of Spirituality and Its Association to Perceived Positive Changes During the COVID-19 Pandemic. Frontiers in psychiatry, 12, 642716. https://doi.org/10.3389/fpsyt.2021.642716

 

Abstract

Background: While the COVID-19 pandemic has affected the lives of almost all people worldwide, many people observed also positive changes in their attitudes and behaviors. This can be seen in the context of posttraumatic growth. These perceived changes refer to five main categories: Nature/Silence/Contemplation, Spirituality, Relationships, Reflection on life, and Digital media usage. A previous study with persons recruited in June 2020 directly after the lockdown in Germany showed that the best predictors of these perceived changes related to the Corona pandemic were the ability to mindfully stop and pause in distinct situations, to be “spellbound at the moment” and to become “quiet and devout,” indicating moments of wondering awe, with subsequent feelings of gratitude. Now, we intended to analyze (1) by whom and how strongly awe/gratitude was experienced during the COVID-19 pandemic, and (2) how these feelings relate to perceived changes and experienced burden, and (3) whether or not feelings of awe/gratitude contribute to participants’ well-being or may buffer perceived burden in terms of a resilience factor.

Methods: Online survey with standardized questionnaires [i.e., WHO-Five Well-being Index (WHO5), Life satisfaction (BMLSS), Awe/Gratitude scale (GrAw-7), and Perceived Changes Questionnaire (PCQ)] among 2,573 participants (68% women; mean age 48.7 ± 14.2 years, 74% with a Christian affiliation) from Germany recruited between June and November 2020.

Results: Awe/Gratitude scored significantly higher particularly among women (Cohen’s d = 0.40), older persons (d = 0.88), persons who rely on their faith as a “stronghold in difficult times” (d = 0.99), those with higher well-being (d = 0.70), and lower perceptions of loneliness (d = 0.49). With respect to perceived changes during the pandemic, more intense feelings of Awe/Gratitude were particularly related to Nature/Silence/Contemplation (r = 0.41), Spirituality (r = 0.41), and Relationships (r = 0.33). Regression analyses revealed that the best predictors of Awe/Gratitude (R2 = 0.40) were the frequency of meditation, female gender, life satisfaction and well-being, faith as a stronghold, and perceived burden and also life reflection, while Nature/Silence/Contemplation and Relationships had a further, but weaker, impact on Awe/Gratitude as a dependent variable. Awe/Gratitude was moderately associated with well-being (r = 0.32) and would predict 9% of participants’ well-being variance. The best predictors of participants’ well-being were multidimensional life satisfaction and low perceived burden (related to the pandemic), and further Awe/Gratitude and Nature/Silence/Contemplation; these would explain 47% of variance in well-being scores. However, Awe/Gratitude cannot be regarded as a buffer of the negative aspects of the COVID-19 pandemic, as it is only marginally (though negatively) related to perceived burden (r = −0.15). Mediation analysis showed that Awe/Gratitude mediates 42% of the link between well-being as a predictor on Nature/Silence/Contemplation as an outcome and has a direct effect of β = 0.15 (p < 0.001) and an indirect effect of β = 0.11 (p < 0.001). Further, Awe/Gratitude mediates 38% (p < 0.001) of the link between Nature/Silence/Contemplation as a predictor on well-being as the outcome; the direct effect is β = 0.18 (p < 0.001), and the indirect effect is β = 0.11 (p < 0.001).

Conclusions: The general ability to experience Awe/Gratitude particularly during the COVID-19 pandemic may sensitize to perceive the world around (including nature and concrete persons) more intensely, probably in terms of, or similar to, posttraumatic growth. As this awareness toward specific moments and situations that deeply “touch” a person was higher in persons with more intense meditation or prayer practice, one may assume that these practices may facilitate these perceptions in terms of a training. However, the experience of Awe/Gratitude does not necessarily buffer against adverse events in life and cannot prevent perceived burden due to the corona pandemic, but it facilitates to, nevertheless, perceive positive aspects of life even within difficult times. As Awe/Gratitude is further mediating the effects of Nature/Silence/Contemplation on well-being, intervention programs could help to train these perceptions, as these self-transcendent feelings are also related to prosocial behaviors with respectful treatment of others and commitment to persons in needs, and well-being.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8095710/

 

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/

 

Improve Sleep in Resident Physicians with Meditation

psyjdc Leave a comment

Improve Sleep in Resident Physicians with Meditation

 

By John M. de Castro, Ph.D.

 

“residents. . . are on the move, working rotations in different clinics and even different hospitals. “Life in the hospital can be very stressful for residents. They aren’t just working long hours, they’re also geographic orphans.”- Chandra Are

 

Resident physicians have long tense shifts. The resultant stress can impair sleep. Not having adequate sleep has adverse effects upon the individual’s health, well-being, and happiness. Sleep deprivation is associated with decreased alertness and a consequent reduction in performance of even simple tasks, decreased quality of life, increased difficulties with memory and problem solving, and increased likelihood of accidental injury including automobile accidents. So, it is important that methods be found to improve sleep in resident physicians. Contemplative practices have been shown to reduce the psychological and physiological responses to stress and improve well-being. Indeed, mindfulness has been shown to be helpful in treating and preventing burnout, increasing resilience, and improving sleep. So, meditation may be able to improve sleep in resident physicians.

 

In today’s Research News article “Sleep Patterns of Resident Physicians and the Effect of Heartfulness Meditation.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8558985/ ) Thimmapuram and colleagues recruited medical residents and had them record sleep for a week including objective measurement with actigraphy. They received heartfulness meditation training for 20 minutes per day for one week and practiced this meditation for 6 minutes each night before sleep. After the weeks training sleep was measured again for 1 week.

 

They found that in comparison to baseline after meditation training there was a significant reduction in self-report and actigraphy measures of mean sleep onset time and sleep fragmentation and a significant increase in sleep quality and restfulness. There were no significant changes in caffeine or alcohol intake or naps.

 

It should be kept in mind that there wasn’t a comparison (control) condition leaving open many confounding alternative explanations including expectancy (placebo) effects, attentional and Hawthorne effects, experimenter bias etc. In addition, there were no follow-up measures to determine if the effects were lasting. So, conclusions must be limited and tempered. Nevertheless, the present study provides evidence that meditation training may result in improved sleep for medical residents. This may result in reduced stress and better health and performance.

 

So, improve sleep in resident physicians with meditation.

 

“Sleep deficiency impairs performance and patient safety, adversely affects the mental and physical health of resident physicians, and increases their risk of occupational injury and motor vehicle crashes,” – Charles Czeisler

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Thimmapuram, J., Pargament, R., Tredici, S. D., Bell, T., Yommer, D., Daoud, D., Powell, F., & Madhusudhan, D. K. (2021). Sleep Patterns of Resident Physicians and the Effect of Heartfulness Meditation. Annals of neurosciences, 28(1-2), 47–54. https://doi.org/10.1177/09727531211039070

 

Abstract

Background:

Medical residents are vulnerable to poor sleep quality due to intense work shifts and academic load. Studies objectively quantified with sleep quantity and quality among resident physicians are limited. Meditation techniques have been shown to improve sleep but are rarely studied in this population. The aim of the present study is to evaluate sleep patterns of internal medicine residents and the effect of a structured Heartfulness meditation program to improve sleep quality.

Methods:

A total of 36 residents participated in a pre–post cohort study from January 2019 through April 2019. Sleep was monitored during a one-week outpatient rotation with two validated assessment tools, namely consensus sleep diary and actigraphy. After four intervening weeks, when the residents returned to the same rotation, Heartfulness meditation was practiced and the same parameters were measured. At the end of the study period, an anonymous qualitative feedback survey was collected to assess the feasibility of the intervention.

Results:

All 36 residents participated in the study (mean age 31.09 years, SD 4.87); 34 residents (94.4%) had complete pre–post data. Consensus sleep diary data showed decreased sleep onset time from 21.03 to 14.84 min (P = .01); sleep quality and restfulness scores increased from 3.32 to 3.89 and 3.08 to 3.54, respectively (P < .001 for both). Actigraphy showed a change in sleep onset time from 20.9 min to 14.5 min (P = .003). Sleep efficiency improved from 83.5% to 85.6% (P = .019). Wakefulness after initial sleep onset changed from 38.8 to 39.9 min (P = .682). Sleep fragmentation index and the number of awakenings decreased from 6.16 to 5.46 (P = .004) and 41.71 to 36.37 (P = .013), respectively.

Conclusions:

Residents obtained nearly 7 h of sleep during outpatient rotation. Findings suggest a structured Heartfulness meditation practice to be a feasible program to improve subjective sleep onset time and several objective measures among resident physicians.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8558985/

 

Protect the Brain from Dementia-Related Deterioration with Meditation

psyjdc Leave a comment

Protect the Brain from Dementia-Related Deterioration with Meditation

 

By John M. de Castro, Ph.D.

 

“the group who performed meditation and yoga at least two hours per week had less atrophy in parts of the brain and better brain connectivity than the control group.

This finding gives them hope that the practice of meditation and yoga may slow the progression of Alzheimer’s.” – Alissa Sauer

 

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

 

In today’s Research News article “Effects of Meditation on Structural Changes of the Brain in Patients With Mild Cognitive Impairment or Alzheimer’s Disease Dementia.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8633496/ ) Dwivedi and colleagues recruited patients between the ages of 45 and 70 years of age who were diagnosed with mild cognitive impairment or probable Alzheimer’s disease. They were assigned to usual care or to receive 6 months of daily 30-minutes sessions of either meditation practice or non-meditation focused task. Before and after the 6-month intervention they underwent detailed clinical and neuropsychological assessment and Magnetic Resonance Imaging (MRI) of the brain.

 

They found that in comparison to baseline and the control groups the meditation group had significantly higher cortical thickness and gray matter volume in the left caudal and rostral middle frontal areas and significantly higher gray matter volume in left lateral occipital, right inferior parietal, and right superior frontal cortices and significantly lower cortical thickness and gray matter volume in the entorhinal cortex and posterior parts of the brain. On the subcortical level they found increased volume in the right thalamus and the hippocampus. There were no significant differences between groups in clinical and neuropsychological measures.

 

The results suggest that 6-months of meditation practice protects the brain from deterioration in patients diagnosed with mild cognitive impairment or probable Alzheimer’s disease. This suggests that meditation may help to prevent the cognitive decline that occurs with these diseases. It is unfortunate, though, that no significant differences were found in the clinical and neuropsychological measures. The scores, however, did not appear to change significantly between baseline and the follow up assessments. So, there simply may not have been enough time for cognitive decline to be detectable in the patients. Regardless, it is clear that meditation has neuroprotective effects in patients showing early signs of dementia.

 

So, protect the brain from dementia-related deterioration with meditation.

 

“ indicators of Alzheimer’s disease. Results showed that those who practiced meditation saw major changes in the biological markers that would put them at a higher risk for Alzheimer’s disease by the end of the study, with the same participants reporting improvements in cognitive function, sleep, mood, and quality of life.” – Kim Innes

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Dwivedi, M., Dubey, N., Pansari, A. J., Bapi, R. S., Das, M., Guha, M., Banerjee, R., Pramanick, G., Basu, J., & Ghosh, A. (2021). Effects of Meditation on Structural Changes of the Brain in Patients With Mild Cognitive Impairment or Alzheimer’s Disease Dementia. Frontiers in human neuroscience, 15, 728993. https://doi.org/10.3389/fnhum.2021.728993

 

Abstract

Previous cross-sectional studies reported positive effects of meditation on the brain areas related to attention and executive function in the healthy elderly population. Effects of long-term regular meditation in persons with mild cognitive impairment (MCI) and Alzheimer’s disease dementia (AD) have rarely been studied. In this study, we explored changes in cortical thickness and gray matter volume in meditation-naïve persons with MCI or mild AD after long-term meditation intervention. MCI or mild AD patients underwent detailed clinical and neuropsychological assessment and were assigned into meditation or non-meditation groups. High resolution T1-weighted magnetic resonance images (MRI) were acquired at baseline and after 6 months. Longitudinal symmetrized percentage changes (SPC) in cortical thickness and gray matter volume were estimated. Left caudal middle frontal, left rostral middle frontal, left superior parietal, right lateral orbitofrontal, and right superior frontal cortices showed changes in both cortical thickness and gray matter volume; the left paracentral cortex showed changes in cortical thickness; the left lateral occipital, left superior frontal, left banks of the superior temporal sulcus (bankssts), and left medial orbitofrontal cortices showed changes in gray matter volume. All these areas exhibited significantly higher SPC values in meditators as compared to non-meditators. Conversely, the left lateral occipital, and right posterior cingulate cortices showed significantly lower SPC values for cortical thickness in the meditators. In hippocampal subfields analysis, we observed significantly higher SPC in gray matter volume of the left CA1, molecular layer HP, and CA3 with a trend for increased gray matter volume in most other areas. No significant changes were found for the hippocampal subfields in the right hemisphere. Analysis of the subcortical structures revealed significantly increased volume in the right thalamus in the meditation group. The results of the study point out that long-term meditation practice in persons with MCI or mild AD leads to salutary changes in cortical thickness and gray matter volumes. Most of these changes were observed in the brain areas related to executive control and memory that are prominently at risk in neurodegenerative diseases.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8633496/

 

Depth of Meditation is Associated with Different Levels of Brain Electrical Activity

psyjdc Leave a comment

Depth of Meditation is Associated with Different Levels of Brain Electrical Activity

 

By John M. de Castro, Ph.D.

 

“Neuroscientific studies, particularly EEG, are revealing much about the neural correlates of meditation in the hopes of understanding why it has therapeutic value, and as a way to probe the nature of self and consciousness.” – Aaron Nitzkin

 

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. There are a number of ways that meditation practices produce these benefits, including changes to the brain and physiology. One way to observe the effects of meditation on neural activity is to measure changes in the electroencephalogram (EEG), the rhythmic electrical activity that can be recorded from the scalp.

 

The recorded activity can be separated into frequency bands. Delta activity consists of oscillations in the 0.5-3 cycles per second band. Theta activity in the EEG consists of oscillations in the 4-8 cycles per second band. Alpha activity consists of oscillations in the 8-12 cycles per second band. Beta activity consists of oscillations in the 15-25 cycles per second band while Gamma activity occurs in the 35-45 cycles per second band. Changes in these brain activities can be compared during different depths of meditation.

 

In today’s Research News article “Alpha and theta oscillations are inversely related to progressive levels of meditation depth.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8633885/ ) Katyal and Goldin recruited healthy adult participants who were long-term meditators and demographically matched meditation naïve participants. They had their electroencephalogram (EEG) recorded during 4 blocks of either listening to a story, listening to music, or 2 6-minute blocks of meditation. They self-reported their depth of meditation after each block.

 

They found, not surprisingly, that in comparison to the meditation naïve participants, the experienced meditators had significantly greater depth of meditation. They also found that as the depth of meditation increased the alpha rhythm in the EEG significantly increased while the theta rhythm significantly decreased. This was true for both groups.

 

The alpha rhythm has been associated with relaxation and a suppression of mind wandering and distraction. Similarly, the greater the depth of meditation the less distraction and mind wandering. Thus, the increase in the alpha rhythm with increasing depth of meditation is reasonable and completely predictable. The theta rhythm is associated with dreaminess and sleep. That the theta rhythm is lowest with higher depths of meditation makes sense as depth is associated with alert awareness. Hence, the brain wave patterns seen during meditation are reflective of the depth of meditation.

 

So, depth of meditation is associated with different levels of brain electrical activity

 

“neurocognitive mechanisms that are present during both self-generated thought and controlled cognitive processes (i.e. the integration between the memory and executive components of cognition via alpha:theta cross-frequency coupling) are minimized during meditative practices.” – Julio Rodriguez-Larios

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Katyal, S., & Goldin, P. (2021). Alpha and theta oscillations are inversely related to progressive levels of meditation depth. Neuroscience of consciousness, 2021(1), niab042. https://doi.org/10.1093/nc/niab042

 

Highlights

  • Our study reveals neurophysiological changes that occur as meditation experiences become deeper.
  • Alpha and theta brainwaves are two reliable neurophysiological signatures of meditation.
  • Theta activity increased with more distractions and was suppressed during deeper experiences.
  • Increased alpha activity was related to fewer distractions and more deeper meditation experiences.
  • Deeper meditation experiences appear to involve a suppression of executive neural processing.

Abstract

Meditation training is proposed to enhance mental well-being by modulating neural activity, particularly alpha and theta brain oscillations, and autonomic activity. Although such enhancement also depends on the quality of meditation, little is known about how these neural and physiological changes relate to meditation quality. One model characterizes meditation quality as five increasing levels of ‘depth’: hindrances, relaxation, concentration, transpersonal qualities and nonduality. We investigated the neural oscillatory (theta, alpha, beta and gamma) and physiological (respiration rate, heart rate and heart rate variability) correlates of the self-reported meditation depth in long-term meditators (LTMs) and meditation-naïve controls (CTLs). To determine the neural and physiological correlates of meditation depth, we modelled the change in the slope of the relationship between self-reported experiential degree at each of the five depth levels and the multiple neural and physiological measures. CTLs reported experiencing more ‘hindrances’ than LTMs, while LTMs reported more ‘transpersonal qualities’ and ‘nonduality’ compared to CTLs, confirming the experiential manipulation of meditation depth. We found that in both groups, theta (4–6 Hz) and alpha (7–13 Hz) oscillations were related to meditation depth in a precisely opposite manner. The theta amplitude positively correlated with ‘hindrances’ and increasingly negatively correlated with increasing meditation depth levels. Alpha amplitude negatively correlated with ‘hindrances’ and increasingly positively with increasing depth levels. The increase in the inverse association between theta and meditation depth occurred over different scalp locations in the two groups—frontal midline in LTMs and frontal lateral in CTLs—possibly reflecting the downregulation of two different aspects of executive processing—monitoring and attention regulation, respectively—during deep meditation. These results suggest a functional dissociation of the two classical neural signatures of meditation training, namely, alpha and theta oscillations. Moreover, while essential for overcoming ‘hindrances’, executive neural processing appears to be downregulated during deeper meditation experiences.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8633885/