Brain systems

Change the Brain to Improve Personal Qualities with Loving Kindness Meditation

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Loving-Kindness Meditation – Teacher-Life-Coach

By John M. de Castro, Ph.D.

 

In today’s Research News article “Loving-Kindness Meditation: Systematic Review of Neuroimaging Correlates in Long-Term Practitioners and Clinical Implications.” (See summary below or view the full text of the study at: https://pmc.ncbi.nlm.nih.gov/articles/PMC11870839/ ) Bashir and colleagues review and summarize the published research studies on changes in the brain resulting from long-term practice of Loving Kindness Meditation (LKM). They report that the brains of LKM practitioners have changes in the superior parietal lobe, inferior frontal gyrus, medial frontal lobe, and insular cortex. These areas are associated with self‐compassion, cognitive and affective empathy, and prosociality.

 

Long-term Loving Kindness Meditation changes brain structures responsible for the personal qualities produced by the practice.

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on the Contemplative Studies Blog  http://contemplative-studies.org

 

Study Summary

 

Bashir K, Edstrom SB, Barlow SJ, Gainer D, Lewis JD. Loving-Kindness Meditation: Systematic Review of Neuroimaging Correlates in Long-Term Practitioners and Clinical Implications. Brain Behav. 2025 Mar;15(3):e70372. doi: 10.1002/brb3.70372. PMID: 40022190; PMCID: PMC11870839.

 

ABSTRACT

Introduction

Loving‐kindness meditation (LKM), a meditation type focused on nurturing love and compassion for oneself and others, has been shown to provide mental health benefits, and LKM interventions are being investigated for mental disorders. The benefits of long‐term practice, such as increased self‐compassion, greater cognitive and affective empathy, and prosocial behavior, are proposed to be due to neuroplastic changes that support well‐being. This systematic review aims to summarize the differences in brain structure and function in long‐term practitioners (LTPs) of LKM versus controls to identify possible underlying mechanisms that support mental health and drive treatment effect.

Methods

The literature search included Google Scholar, PubMed, and APA PsycINFO from inception through November 13, 2023.

Results

After review, five studies (64 LTPs and 67 controls total) were included. Brain regions with between‐group differences reported in at least two studies include the superior parietal lobe, inferior frontal gyrus, medial frontal lobe, and insular cortex.

Conclusion

These areas are responsible for self‐compassion, cognitive and affective empathy, and prosociality—personal qualities believed to be fostered through LKM practice. Longitudinal neuroimaging and neurophysiological studies incorporating LKM interventions for specific mental disorders are needed to further inform the biological basis of these treatments and may provide surrogate outcome measures for future clinical trials to refine this promising treatment modality.

 

Yoga improves physiological and psychological states

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Yoga for Exercise - The Nutrition Source

By John M. de Castro, Ph.D.

 

In today’s Research News article “Long-term effects of yoga-based practices on neural, cognitive, psychological, and physiological outcomes in adults: a scoping review and evidence map.” (See summary below or view the full text of the study at: https://pmc.ncbi.nlm.nih.gov/articles/PMC11884082/ ) Campelo and colleagues review and summarize the effects of long-term yoga practice on the physiological and psychological states of yoga practitioners. They report that yoga practice produces long-term changes in brain systems underlying sensorimotor, interoceptive, emotion regulation, and executive functions and in the periphery increases in parasympathetic-driven autonomic, hormonal and immune responses. Yoga practice also reduces negative emotions, psychopathology, and emotional reactivity as well as improved memory and cognition.

 

Long-term yoga practice positively alters the physiological and psychological state of the practitioners.

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on the Contemplative Studies Blog  http://contemplative-studies.org

 

Study Summary

 

Campelo G, de Araújo JR, Aristizabal JP, de Souza W, de Castilho GM. Long-term effects of yoga-based practices on neural, cognitive, psychological, and physiological outcomes in adults: a scoping review and evidence map. BMC Complement Med Ther. 2025 Mar 6;25(1):92. doi: 10.1186/s12906-025-04825-x. PMID: 40050913; PMCID: PMC11884082.

 

Abstract

Background

Compared with short-term practices, long-term yoga might promote differential qualitative and quantitative outcomes. Following JBI’s and PRISMA-ScR guidelines, this scoping review followed an apriori and systematic protocol to document the long-term effects of yoga on neural, cognitive, psychological, and physiological outcomes, provide evidence maps for each yoga component, and summarize results identifying knowledge gaps and promising directions.

Methods

Four databases (PubMed, Cochrane, LILACS, and PubPsych) were last searched in March 2023. Studies were included if they evaluated adults with > 1 year of practice, specified yoga-based practice(s) of interest, measured neural, cognitive, psychological, and/or physiological outcomes, were written in English, Spanish, or Portuguese, presented original data, and mentioned search terms in the title/abstract. Evidence maps for each yoga component followed a 4-level structure of outcome category, method, study design and literature size. Qualitative summaries followed the same structure, to facilitate information retrieval.

Results

Out of 2270 screened studies, 65 were included (meditative studies = 36, predominantly postural studies = 25, breathing practice studies = 8). Physiologicaland neural outcomes were the most common, followed by psychological and cognitive outcomes. Although heterogeneous, neural results reveal structural and functional changes related to sensorimotor, interoceptive, emotion regulation, and executive functions. Physiologically, most studies have associated long-term practice with parasympathetic-driven autonomic, hormonal and immune responses, but some studies revealed sympathetic-driven or mixed responses, maybe due to the specific technique or individual differences. Psychological outcomes included lower levels of negative affect, psychopathological symptoms, and emotional reactivity. Cognitive measures have shown improved memory/cognition for older adults, but mixed or null effects for other constructs. Commonly, however, long-term practitioners demonstrated improved neural or physiological efficiency while performing cognitive tasks.

Conclusions

Future research should provide clear descriptions of the investigated yoga practice, employ more experimental paradigms, and refine statistical reports and models. We encourage researchers to work with specific overarching theoretical frameworks to refine research predictions, such as the neurovisceral integration model or predictive coding models; to consider motivational, cultural, and contextual factors that might influence long-term outcomes; and to develop systematic reviews and meta-analyses as next steps of evidence summary.

 

Mindfulness Meditation Alters the Brain to Accentuate Sensory Information Processing

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Figure 3

By John M. de Castro, Ph.D.

 

In today’s Research News article “Long-term mindfulness meditation increases occurrence of sensory and attention brain states” (See summary below or view the full text of the study at: https://pmc.ncbi.nlm.nih.gov/articles/PMC11743700/ ) Panitz and colleagues examined the activity of brain systems in experienced mindfulness meditators in comparison to non-meditators and found that experienced meditators had greater activity in brain systems associated with sensory processing and lower activity in systems associated with cognitive processing, This suggests that mindfulness meditation practice alters brain activity to accentuate immediate sensations.

 

Mindfulness meditation increases brain sensory processing while decreasing brain cognitive processing.

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on the Contemplative Studies Blog  http://contemplative-studies.org

 

Study Summary

 

Panitz DY, Mendelsohn A, Cabral J, Berkovich-Ohana A. Long-term mindfulness meditation increases occurrence of sensory and attention brain states. Front Hum Neurosci. 2025 Jan 6;18:1482353. doi: 10.3389/fnhum.2024.1482353. PMID: 39834400; PMCID: PMC11743700.

 

Abstract

Interest has been growing in the use of mindfulness meditation (MM) as a therapeutic practice, as accumulating evidence highlights its potential to effectively address a range of mental conditions. While many fMRI studies focused on neural activation and functional connectivity during meditation, the impact of long-term MM practice on spontaneous brain activity, and on the expression of resting state networks over time, remains unclear. Here, intrinsic functional network dynamics were compared between experienced meditators and meditation-naïve participants during rest. Our analysis revealed that meditators tend to spend more time in two brain states that involve synchrony among cortical regions associated with sensory perception. Conversely, a brain state involving frontal areas associated with higher cognitive functions was detected less frequently in experienced meditators. These findings suggest that, by shifting attention toward enhanced sensory and embodied processing, MM effectively modulates the expression of functional network states at rest. These results support the suggested lasting effect of long-term MM on the modulation of resting-state networks, reinforcing its therapeutic potential for disorders characterized by imbalanced network dynamics. Moreover, this study reinforces the utility of analytic approaches from dynamical systems theory to extend current knowledge regarding brain activity and evaluate its response to interventions.

 

Meditation is Associated with a Reduction in Brain Aging Indicators

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Figure 2

By John M. de Castro, Ph.D.

 

In today’s Research News article “Meditation Linked to Enhanced MRI Signal Intensity in the Pineal Gland and Reduced Predicted Brain Age” (See summary below or view the full text of the study at: https://pmc.ncbi.nlm.nih.gov/articles/PMC11822093/ ) Plini and colleagues examined the brains of long-term meditators and found that the activity of their Pineal Glands was enhanced and an indicator of brain aging was reduced. This suggests that meditation leads to less aging of the brain. This could be a mechanism whereby meditation reduces cognitive decline with aging.

 

Reduce brain aging with meditation.

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on the Contemplative Studies Blog  http://contemplative-studies.org

 

Study Summary

 

Plini ERG, Melnychuk MC, Dockree PM. Meditation Linked to Enhanced MRI Signal Intensity in the Pineal Gland and Reduced Predicted Brain Age. J Pineal Res. 2025 Mar;77(2):e70033. doi: 10.1111/jpi.70033. PMID: 39940075; PMCID: PMC11822093.

 

ABSTRACT

Growing evidence demonstrates that meditation practice supports cognitive functions, including attention and interoceptive processing, and is associated with structural changes across cortical networks, including prefrontal regions and the insula. However, the extent of subcortical morphometric changes linked to meditation practice is less appreciated. A noteworthy candidate is the pineal gland, a key producer of melatonin, which regulates circadian rhythms that augment sleep‐wake patterns and may also provide neuroprotective benefits to offset cognitive decline. Increased melatonin levels, as well as increased fMRI BOLD signal in the pineal gland, have been observed in meditators versus controls. However, it is not known if long‐term meditators exhibit structural changes in the pineal gland linked to the lifetime duration of practice. In the current study, we performed voxel‐based morphometry (VBM) analysis to investigate: (1) whether long‐term meditators (LTMs) (n = 14) exhibited greater pineal gland MRI‐derived signal intensity compared to a control group (n = 969), (2) a potential association between the estimated lifetime hours of meditation (ELHOM) and pineal gland signal intensity, and (3) whether LTMs show greater grey matter (GM) maintenance (BrainPAD) that is associated with pineal gland signal intensity. The results revealed greater pineal gland signal intensity and lower BrainPAD scores (younger brain age) in LTMs compared to controls. Exploratory analysis revealed a positive association between ELHOM and greater signal intensity in the pineal gland but not with GM maintenance as measured by BrainPAD score. However, greater pineal signal intensity and lower BrainPAD scores were correlated in LTMs. The potential mechanisms by which meditation influences pineal gland function, hormonal metabolism, and GM maintenance are discussed – in particular, melatonin’s roles in sleep, immune response, inflammation modulation, and stem cell and neural regeneration.

 

Deep Meditative States are Associated with Disruption of Brain Cortical Circuits

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Discover the Secret to How to Get Into Deep Meditation

By John M. de Castro, Ph.D.

 

In today’s Research News article “Multimodal neurophenomenology of advanced concentration absorption meditation: An intensively sampled case study of Jhana” (See summary below or view the full text of the study at: https://pmc.ncbi.nlm.nih.gov/articles/PMC11770875/ ) Chowdhury and colleagues studied brain activity during deep absorptive meditative states. These states are associated with intense concentration and feelings of bliss, peace, and clarity. They report that during these meditative states the activity of primary neural circuits in the brain are dysregulated (disrupted). This suggests that deep meditation practice deconstructs the brain’s cortical hierarchy, likely inhibiting thoughts and imagery.

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on the Contemplative Studies Blog  http://contemplative-studies.org

 

Study Summary

 

Chowdhury A, Bianciardi M, Chapdelaine E, Riaz OS, Timmermann C, van Lutterveld R, Sparby T, Sacchet MD. Multimodal neurophenomenology of advanced concentration absorption meditation: An intensively sampled case study of Jhana. Neuroimage. 2025 Jan;305:120973. doi: 10.1016/j.neuroimage.2024.120973. Epub 2024 Dec 14. PMID: 39681243; PMCID: PMC11770875.

 

Abstract

Using a combination of fMRI, EEG, and phenomenology ratings, we examined the neurophenomenology of advanced concentrative absorption meditation, namely jhanas (ACAM-J), in a practitioner with over 23,000 h of meditation practice. Our study shows that ACAM-J states induce reliable changes in conscious experience and that these experiences are related to neural activity. Using resting-state fMRI functional connectivity, we found that ACAM-J is associated with decreased within-network modularity, increased global functional connectivity (GFC), and desegregation of the default mode and visual networks. Compared to control tasks, the ACAM-J were also related to widespread decreases in broadband EEG oscillatory power and increases in Lempel-Ziv complexity (LZ, a measure of brain entropy). Some fMRI findings varied by the control task used, while EEG results remained consistent, emphasizing both shared and unique neural features of ACAM-J. These differences in fMRI and EEG-measured neurophysiological properties correlated with specific changes in phenomenology – and especially with ACAM-J-induced states of bliss – enriching our understanding of these advanced meditative states. Our results show that advanced meditation practices markedly dysregulate high-level brain systems via practices of enhanced attention to sensations, corroborating recent neurocognitive theories of meditation as the deconstruction of the brain’s cortical hierarchy. Overall, our results suggest that ACAM-J is associated with the modulation of large-scale brain networks in both fMRI and EEG, with potential implications for understanding the mechanisms of deep concentration practices and their effects on subjective experience.

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May be an image of 1 person and sleepwearMindfulness Meditation Reduces Pain.

 

By John M. de Castro, Ph.D.

 

In today’s Research News article “Mindfulness Meditation and Placebo Modulate Distinct Multivariate Neural Signatures to Reduce Pain” (See summary below) Riegner and colleagues demonstrate that mindfulness meditation reduces both subjective pain and the brain responses to pain to a greater extent than a placebo.

Hence, mindfulness meditation is an effective treatment for pain.

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on the Contemplative Studies Blog  http://contemplative-studies.org

 

Study Summary

Riegner G, Dean J, Wager TD, Zeidan F. Mindfulness Meditation and Placebo Modulate Distinct Multivariate Neural Signatures to Reduce Pain. Biol Psychiatry. 2025 Jan 1;97(1):81-88. doi: 10.1016/j.biopsych.2024.08.023. Epub 2024 Aug 30. PMID: 39216636; PMCID: PMC11608143.

Abstract

Background: Rather than a passive reflection of nociception, pain is shaped by the interplay between one’s experiences, current cognitive-affective states, and expectations. The placebo response, a paradoxical yet reliable phenomenon, is postulated to reduce pain by engaging mechanisms shared with active therapies. It has been assumed that mindfulness meditation, practiced by sustaining nonjudgmental awareness of arising sensory events, merely reflects mechanisms evoked by placebo. Recently, brain-based multivariate pattern analysis has been validated to successfully disentangle nociceptive-specific, negative affective, and placebo-based dimensions of the subjective pain experience.

Methods: To determine whether mindfulness meditation engages distinct brain mechanisms from placebo and sham mindfulness to reduce pain, multivariate pattern analysis pain signatures were applied across 2 randomized clinical trials that employed overlapping psychophysical pain testing procedures (49 °C noxious heat; visual analog pain scales) and distinct functional magnetic resonance imaging techniques (blood oxygen level-dependent; perfusion based). After baseline pain testing, 115 healthy participants were randomized into a 4-session mindfulness meditation (n = 37), placebo-cream conditioning (n = 19), sham mindfulness meditation (n = 20), or book-listening control (n = 39) intervention. After each intervention, noxious heat was administered during functional magnetic resonance imaging and each manipulation.

Results: A double dissociation in the multivariate pattern analysis signatures supporting pain regulation was revealed by mindfulness meditation compared with placebo cream. Mindfulness meditation produced significantly greater reductions in pain intensity and pain unpleasantness ratings and nociceptive-specific and negative affective pain signatures than placebo cream, sham mindfulness meditation, and control interventions. The placebo-cream group significantly lowered the placebo-based signature.

Conclusions: Mindfulness meditation and placebo engaged distinct and granular neural pain signatures to reduce pain.

 

Improve Mild Cognitive Impairment in the Elderly with Tai Chi

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By John M. de Castro, Ph.D.

 

“Tai Chi Chuan, the great ultimate, strengthens the weak, raises the sick, invigorates the debilitated, and encourages the timid.” –Cheng Man-ch’ing

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. This is often a prelude to more severe decline such a dementia. An encouraging new development is that mindfulness practices such as meditation training and mindful movement practices can significantly reduce these declines in cognitive ability.

 

Tai Chi is an ancient Chinese practice involving mindfulness and gentle movements. It is easy to learn, safe, and gentle. Tai Chi has been practiced for thousands of years with benefits for health and longevity. Tai Chi training is designed to enhance function and regulate the activities of the body through controlled breathing, mindful concentration, and gentle movements. Only recently though have the effects of this practice been scrutinized with empirical research. This research has found that it is effective for an array of physical and psychological issues. It appears to strengthen the immune system, reduce inflammation and increase the number of cancer killing cells in the bloodstream, improve cardiovascular health, reduce arthritis pain, improve balance and reduce falls. It also appears to improve attentional ability improve cognitive ability in the elderly, and relieve depression.

 

In today’s Research News article “Mitigating effects and mechanisms of Tai Chi on mild cognitive impairment in the elderly.” (See summary below or view the full text of the study at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9906996/  ) Wang and colleagues review and summarize the published randomized controlled studies of the effects of Tai Chi practice on patients diagnosed with mild cognitive decline.

 

They report that Tai Chi practice relieved the symptoms of mild cognitive decline and delayed the onset of more severe dementia. The benefits include improved memory, executive function, and sleep and reduced body pain. They also report that Tai Chi practice appears to produce these benefits by altering the brain including increased brain volume, connectivity, and white matter efficiency and reduce inflammation.

 

Hence, the published research suggests that Tai Chi practice is an effective treatment for patients with mild cognitive impairment.

 

“The moment we believe that success is determined by an ingrained level of ability as opposed to resilience and hard work, we will be brittle in the face of adversity.” – Joshua Waitzkin

 

CMCS – Center for Mindfulness and Contemplative Studies

 

This and other Contemplative Studies posts are also available on the Contemplative Studies Blog  http://contemplative-studies.org

 

Study Summary

 

Wang X, Si K, Gu W, Wang X. Mitigating effects and mechanisms of Tai Chi on mild cognitive impairment in the elderly. Front Aging Neurosci. 2023 Jan 6;14:1028822. doi: 10.3389/fnagi.2022.1028822. PMID: 36760710; PMCID: PMC9906996.

 

Abstract

Mild cognitive impairment (MCI) is a major public health concern that endangers health and decreases the quality of life of the elderly around the world. A recent clinical guideline has recommended regular exercise (twice per week) for patients with MCI as part of an overall approach to management. Tai Chi, a form of light-to-moderate-intensity mind-body exercise, is particularly suitable for seniors. This review aims to summarize epidemiological studies related to the effects of Tai Chi on symptom remission in older adults with MCI and reveal the potential mechanisms. Evidence suggested that Tai Chi can improve cognitive functions and alleviate the accompanying symptoms of MCI in the elderly potentially by activating the expression of signals in different brain regions, altering their connectivity, increasing the brain volume, and modulating brain-derived neurotropic and inflammation factors. Studies comparing various types of Tai Chi may contribute to the identification of paradigms that have appropriate intensities and difficulty and exert good effects on older people with MCI. In addition, studies are warranted to determine the frequency and duration of training that can optimize the beneficial effects of Tai Chi on MCI.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9906996/

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 Brain Function in the Elderly with Mindfulness

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Improve Brain Function in the Elderly with Mindfulness

 

By John M. de Castro, Ph.D.

 

“Most people think that aging is irreversible and we know that there are mechanisms even in the human machinery that allow for the reversal of aging, through correction of diet, through anti-oxidants, through removal of toxins from the body, through exercise, through yoga and breathing techniques, and through meditation.” – Deepak Chopra

 

The aging process involves a systematic progressive decline in every system in the body, the brain included. This includes our cognitive (mental) abilities which decline with age including impairments in memory, attention, and problem-solving ability. It is inevitable and cannot be avoided. Research has 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 and yoga have been found to degenerate less with aging than non-practitioners

 

In today’s Research News article “Cerebral Blood Flow and Brain Functional Connectivity Changes in Older Adults Participating in a Mindfulness-Based Stress Reduction Program.” (See summary below or view the full text of the study at:  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8869750/ ) Moss and colleagues recruited adults over the age of 65 years and provided them with an 8-week of once a week 2-hour programs of Mindfulness-Based Stress Reduction (MBSR) along with home practice. MBSR consists of meditation, yoga, and body scan practices along with group discussion. Before and after the program they were measured for anxiety and depression. In addition they underwent cerebral blood flow measurement and connectivity measurement with Magnetic Resonance Imaging (MRI).

 

They found that in comparison to baseline the elderly had significant decreases in depression and significant increases in cerebral blood flow in a variety of cortical areas after mindfulness training. They also found significantly increased connectivity between the anterior cingulate cortex and the left insular cortex, posterior cingulate cortex, putamen, and left orbitofrontal cortex.

 

These changes in the brains of the elderly are significant as they suggest that mindfulness training reverses, at least in part, the decline in the nervous system that occurs with aging. This is likely to also signal protection of cognitive capacity.

 

“There are great reasons to fear what happens if you don’t create a robust social schedule for the rest of your life or practice mindfulness meditation for the rest of your life.” ― John Medina

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

 

Moss AS, Reibel DK, Wintering N, Vedaei F, Porter H, Khosravi M, Heholt J, Alizadeh M, Mohamed FB, Newberg AB. Cerebral Blood Flow and Brain Functional Connectivity Changes in Older Adults Participating in a Mindfulness-Based Stress Reduction Program. Behav Sci (Basel). 2022 Feb 14;12(2):48. doi: 10.3390/bs12020048. PMID: 35200299; PMCID: PMC8869750.

 

Abstract

There is a growing interest in the potential beneficial effects of mindfulness meditation training in protecting against age-related physical, emotional, and cognitive decline. The current prospective, single-center, single-arm study investigated if functional magnetic resonance imaging-based changes in cerebral blood flow and brain functional connectivity could be observed in 11 elderly adults (mean age 79) after participation in a Mindfulness-Based Stress Reduction (MBSR) program. The results showed significantly (p < 0.05) altered cerebral blood flow and functional connectivity in the cingulate gyrus, limbic structures, and subregions of the temporal and frontal lobes, similar to findings of other meditation-related studies in younger populations. Furthermore, these changes were also associated with significant improvements in depression symptoms. This study suggests that the MBSR program can potentially modify cerebral blood flow and connectivity in this population.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8869750/

 

Mindfulness Training Alters the Brain to Improve Internally Oriented Attention

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Mindfulness Training Alters the Brain to Improve Internally Oriented Attention

 

By John M. de Castro, Ph.D.

 

“Regular practice of mindfulness can help you grow a wiser, more connected, and stress-proof brain.” – Melanie Greenberg

 

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. 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.

 

The evidence of the effects of mindfulness practices on the Default Mode Network (DMN) and the Salience Network has been accumulating. So, it makes sense to summarize what has been learned. In today’s Research News article “Meta-analytic evidence that mindfulness training alters resting state default mode network connectivity.” (See summary below or view the full text of the study at:  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9293892/ ) Rahrig and colleagues review, summarize, and perform a meta-analysis of the published research on the effects of mindfulness training on brain systems.

 

They identified 12 published research studies. They report that the research studies found that mindfulness training produced increased functional connectivity between the dorsal anterior cingulate cortex a component of the salience network and the posterior cingulate cortex a component of the default mode network. This suggests that mindfulness training increases the attention to significant aspects of internal processes. It can be hypothesized that this results in an internal attention to the internal mental processes of the mind.

 

“How we pay attention to the present moment largely determines the character of our experience, and therefore, the quality of our lives.” – Sam Harris

 

 

CMCS – Center for Mindfulness and Contemplative Studies

 

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

 

Study Summary

Rahrig H, Vago DR, Passarelli MA, Auten A, Lynn NA, Brown KW. Meta-analytic evidence that mindfulness training alters resting state default mode network connectivity. Sci Rep. 2022 Jul 18;12(1):12260. doi: 10.1038/s41598-022-15195-6. PMID: 35851275; PMCID: PMC9293892.

 

Abstract

This meta-analysis sought to expand upon neurobiological models of mindfulness through investigation of inherent brain network connectivity outcomes, indexed via resting state functional connectivity (rsFC). We conducted a systematic review and meta-analysis of rsFC as an outcome of mindfulness training (MT) relative to control, with the hypothesis that MT would increase cross-network connectivity between nodes of the Default Mode Network (DMN), Salience Network (SN), and Frontoparietal Control Network (FPCN) as a mechanism of internally-oriented attentional control. Texts were identified from the databases: MEDLINE/PubMed, ERIC, PSYCINFO, ProQuest, Scopus, and Web of Sciences; and were screened for inclusion based on experimental/quasi-experimental trial design and use of mindfulness-based training interventions. RsFC effects were extracted from twelve studies (mindfulness n = 226; control n = 204). Voxel-based meta-analysis revealed significantly greater rsFC (MT > control) between the left middle cingulate (Hedge’s g = .234, p = 0.0288, I2 = 15.87), located within the SN, and the posterior cingulate cortex, a focal hub of the DMN. Egger’s test for publication bias was nonsignificant, bias = 2.17, p = 0.162. In support of our hypothesis, results suggest that MT targets internetwork (SN-DMN) connectivity implicated in the flexible control of internally-oriented attention.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9293892/