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Czajko S, Zorn J, Daumail L, Chetelat G, Margulies DS, Lutz A. Exploring the Embodied Mind: Functional Connectome Fingerprinting of Meditation Expertise. BIOLOGICAL PSYCHIATRY GLOBAL OPEN SCIENCE 2024; 4:100372. [PMID: 39309211 PMCID: PMC11414651 DOI: 10.1016/j.bpsgos.2024.100372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 07/10/2024] [Accepted: 07/12/2024] [Indexed: 09/25/2024] Open
Abstract
Background Short mindfulness-based interventions have gained traction in research due to their positive impact on well-being, cognition, and clinical symptoms across various settings. However, these short-term trainings are viewed as preliminary steps within a more extensive transformative path, presumably leading to long-lasting trait changes. Despite this, little is still known about the brain correlates of these meditation traits. Methods To address this gap, we investigated the neural correlates of meditation expertise in long-term Buddhist practitioners, comparing the large-scale brain functional connectivity of 28 expert meditators with 47 matched novices. Our hypothesis posited that meditation expertise would be associated with specific and enduring patterns of functional connectivity present during both meditative (open monitoring/open presence and loving-kindness and compassion meditations) and nonmeditative resting states, as measured by connectivity gradients. Results Applying a support vector classifier to states not included in training, we successfully decoded expertise as a trait, demonstrating its non-state-dependent nature. The signature of expertise was further characterized by an increased integration of large-scale brain networks, including the dorsal and ventral attention, limbic, frontoparietal, and somatomotor networks. The latter correlated with a higher ability to create psychological distance from thoughts and emotions. Conclusions Such heightened integration of bodily maps with affective and attentional networks in meditation experts could point toward a signature of the embodied cognition cultivated in these contemplative practices.
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Affiliation(s)
- Sébastien Czajko
- EDUWELL team, Lyon Neuroscience Research Centre, INSERM U1028, CNRS UMR 5292, Lyon 1 University, Lyon, France
| | - Jelle Zorn
- EDUWELL team, Lyon Neuroscience Research Centre, INSERM U1028, CNRS UMR 5292, Lyon 1 University, Lyon, France
| | - Loïc Daumail
- Department of Psychology, College of Arts and Sciences, Vanderbilt Vision Research Center, Vanderbilt University, Nashville, Tennessee
| | - Gael Chetelat
- Normandie University, UNICAEN, INSERM, U1237, NeuroPresage Team, Cyceron, Caen, France
| | - Daniel S. Margulies
- Centre National de la Recherche Scientifique and Université de Paris, INCC UMR 8002, Paris, France
| | - Antoine Lutz
- EDUWELL team, Lyon Neuroscience Research Centre, INSERM U1028, CNRS UMR 5292, Lyon 1 University, Lyon, France
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Szaszkó B, Tschenett H, Ansorge U, Nater UM. Hatha yoga reduces momentary stress but does not impact diurnal profiles of salivary cortisol and alpha-amylase: A randomized controlled trial. Psychoneuroendocrinology 2024; 171:107191. [PMID: 39357241 DOI: 10.1016/j.psyneuen.2024.107191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 08/23/2024] [Accepted: 09/19/2024] [Indexed: 10/04/2024]
Abstract
Does the practice of yoga impact stress? Various studies have suggested that yoga may reduce both self-reported stress and stress biomarkers, but the evidence for such claims remains inconclusive, especially for yoga styles with a focus on physical postures. In a randomized controlled trial with 98 participants, we therefore examined whether an eight-week Hatha yoga intervention (60 min, 3×/week or more) led to reduced levels of diurnal salivary cortisol (sCort), salivary alpha-amylase (sAA), and subjective momentary stress as compared to a waitlist control group. To ensure the concomitant assessment of self-report and biological measures in an ecologically valid setting, and to capture the diurnal profile of cortisol and alpha-amylase, we employed an ecological momentary assessment approach. Five times per day, participants reported their momentary stress levels on a visual analogue scale and collected saliva samples for the assessment of salivary biomarkers. The intervention led to a significant reduction of subjective momentary stress but there was no change in diurnal sCort or sAA levels. There are several potential explanations for these findings: The intervention may have helped participants to cope better with stress while leaving diurnal levels of stress biomarkers unaffected, or the change may at least not have been reflected in sCort and sAA. Alternatively, there may have been a self-report bias, insofar as a favorable disposition towards yoga may have led participants to report reductions in stress in order to indicate positive effects of the intervention. Our findings contribute to a better understanding of the effects of distinct yoga interventions, demonstrating their potential to serve as low-risk stress relief tools.
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Affiliation(s)
- Bence Szaszkó
- Department of Cognition, Emotion, and Methods in Psychology, University of Vienna, Austria.
| | - Hannah Tschenett
- Department of Clinical and Health Psychology, University of Vienna, Austria
| | - Ulrich Ansorge
- Department of Cognition, Emotion, and Methods in Psychology, University of Vienna, Austria; Vienna Cognitive Science Hub, University of Vienna, Austria; Research Platform Mediatised Lifeworlds, University of Vienna, Austria
| | - Urs Markus Nater
- Department of Clinical and Health Psychology, University of Vienna, Austria; University Research Platform "The Stress of Life - Processes and Mechanisms Underlying Everyday Life Stress", University of Vienna, Austria
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Kumar G P, Panda R, Sharma K, Adarsh A, Annen J, Martial C, Faymonville ME, Laureys S, Sombrun C, Ganesan RA, Vanhaudenhuyse A, Gosseries O. Changes in high-order interaction measures of synergy and redundancy during non-ordinary states of consciousness induced by meditation, hypnosis, and auto-induced cognitive trance. Neuroimage 2024; 293:120623. [PMID: 38670442 DOI: 10.1016/j.neuroimage.2024.120623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/08/2024] [Accepted: 04/21/2024] [Indexed: 04/28/2024] Open
Abstract
High-order interactions are required across brain regions to accomplish specific cognitive functions. These functional interdependencies are reflected by synergistic information that can be obtained by combining the information from all the sources considered and redundant information (i.e., common information provided by all the sources). However, electroencephalogram (EEG) functional connectivity is limited to pairwise interactions thereby precluding the estimation of high-order interactions. In this multicentric study, we used measures of synergistic and redundant information to study in parallel the high-order interactions between five EEG electrodes during three non-ordinary states of consciousness (NSCs): Rajyoga meditation (RM), hypnosis, and auto-induced cognitive trance (AICT). We analyzed EEG data from 22 long-term Rajyoga meditators, nine volunteers undergoing hypnosis, and 21 practitioners of AICT. We here report the within-group changes in synergy and redundancy for each NSC in comparison with their respective baseline. During RM, synergy increased at the whole brain level in the delta and theta bands. Redundancy decreased in frontal, right central, and posterior electrodes in delta, and frontal, central, and posterior electrodes in beta1 and beta2 bands. During hypnosis, synergy decreased in mid-frontal, temporal, and mid-centro-parietal electrodes in the delta band. The decrease was also observed in the beta2 band in the left frontal and right parietal electrodes. During AICT, synergy decreased in delta and theta bands in left-frontal, right-frontocentral, and posterior electrodes. The decrease was also observed at the whole brain level in the alpha band. However, redundancy changes during hypnosis and AICT were not significant. The subjective reports of absorption and dissociation during hypnosis and AICT, as well as the mystical experience questionnaires during AICT, showed no correlation with the high-order measures. The proposed study is the first exploratory attempt to utilize the concepts of synergy and redundancy in NSCs. The differences in synergy and redundancy during different NSCs warrant further studies to relate the extracted measures with the phenomenology of the NSCs.
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Affiliation(s)
- Pradeep Kumar G
- MILE Lab, Department of Electrical Engineering, Indian Institute of Science, Bengaluru, India
| | - Rajanikant Panda
- Coma Science Group, GIGA-Consciousness, University of Liege, Liege, Belgium; Sensation & Perception Research Group, GIGA-Consciousness, University of Liege, Liege, Belgium; Centre du Cerveau, University Hospital of Liege, Liege, Belgium
| | - Kanishka Sharma
- MILE Lab, Department of Electrical Engineering, Indian Institute of Science, Bengaluru, India
| | - A Adarsh
- MILE Lab, Department of Electrical Engineering, Indian Institute of Science, Bengaluru, India
| | - Jitka Annen
- Coma Science Group, GIGA-Consciousness, University of Liege, Liege, Belgium; Centre du Cerveau, University Hospital of Liege, Liege, Belgium
| | - Charlotte Martial
- Coma Science Group, GIGA-Consciousness, University of Liege, Liege, Belgium; Centre du Cerveau, University Hospital of Liege, Liege, Belgium
| | - Marie-Elisabeth Faymonville
- Sensation & Perception Research Group, GIGA-Consciousness, University of Liege, Liege, Belgium; Arsene Bruny Integrated Oncological Center, University Hospital of Liege, Liege, Belgium
| | - Steven Laureys
- Coma Science Group, GIGA-Consciousness, University of Liege, Liege, Belgium; Centre du Cerveau, University Hospital of Liege, Liege, Belgium
| | | | - Ramakrishnan Angarai Ganesan
- MILE Lab, Department of Electrical Engineering, Indian Institute of Science, Bengaluru, India; Centre for Neuroscience, Indian Institute of Science, Bengaluru, India
| | - Audrey Vanhaudenhuyse
- Sensation & Perception Research Group, GIGA-Consciousness, University of Liege, Liege, Belgium; Algology Interdisciplinary Center, University Hospital of Liege, Liege, Belgium
| | - Olivia Gosseries
- Coma Science Group, GIGA-Consciousness, University of Liege, Liege, Belgium; Sensation & Perception Research Group, GIGA-Consciousness, University of Liege, Liege, Belgium; Centre du Cerveau, University Hospital of Liege, Liege, Belgium.
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Kumar R, Dhamija P, Vardhan G, Kant R, Singh Y, Yadav RK, Rudra B, Pathania M. Evaluating Yoga-Based Intervention Versus the American Diabetes Association Exercise Regimen in Conjunction With Standard Care for Autonomic Neuropathy in Diabetes Mellitus: An Exploratory Clinical Trial. Cureus 2024; 16:e61329. [PMID: 38947647 PMCID: PMC11213716 DOI: 10.7759/cureus.61329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2024] [Indexed: 07/02/2024] Open
Abstract
INTRODUCTION Diabetic autonomic neuropathy (DAN) is a prevalent yet often overlooked complication of diabetes mellitus (DM), impacting multiple organs and substantially elevating the risk of morbidity and mortality. This study aimed to assess the effectiveness of yoga-based intervention (YBI) compared to the American Diabetes Association exercise regimen (ADA Ex. Regime) and standard care for treating autonomic neuropathy in type 2 DM. METHODS This open-label exploratory clinical trial featured two parallel study arms: Group A (Intervention), which received YBI alongside standard care, and Group B, which adhered to the ADA Ex. Regime in conjunction with standard care. A total of 80 participants aged 35-60, diagnosed with type 2 DM and autonomic neuropathy, were equally allocated to both groups. Data collection included nerve conduction velocity (NCV) tests, autonomic function tests (AFTs), as well as evaluations of depression and quality of life. RESULTS YBI demonstrated a drop in parasympathetic tone compared to the ADA Ex. Regime. Following a six-month intervention, the sympathetic activity indicator (SD2) exhibited a significantly lower value in the YBI group than in the ADA Ex. Regime group, indicating a positive effect (p < 0.05), while the ADA Ex. Regime showed more improvement in certain areas of NCV (e.g., left and right peroneal NCV, right and left peroneal F-latency), notable differences were observed in alkaline phosphatase levels, depression scores, and WHO-5 wellness, all reaching statistical significance at p < 0.05. CONCLUSIONS The study findings observed that a 24-week YBI significantly reduced in symptoms of diabetic neuropathy and stress. Although the ADA Ex. Regime demonstrated greater improvement in specific aspects of NCV compared to YBI, YBI outperformed the ADA Ex. Regime in enhancing WHO-5 wellness and reducing depression symptoms.
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Affiliation(s)
- Ramesh Kumar
- Pharmacology, All India Institute of Medical Sciences, Rishikesh, IND
| | - Puneet Dhamija
- Pharmacology, All India Institute of Medical Sciences, Rishikesh, IND
| | - Gyan Vardhan
- Pharmacology, All India Institute of Medical Sciences, Rishikesh, IND
| | - Ravi Kant
- General Medicine, All India Institute of Medical Sciences, Rishikesh, IND
- College of Nursing, All India Institute of Medical Sciences, Rishikesh, IND
| | - Yogesh Singh
- Physiology, All India Institute of Medical Sciences, Rishikesh, IND
| | - Raj Kumar Yadav
- Physical Medicine and Rehabilitation, All India Institute of Medical Sciences, Rishikesh, IND
| | | | - Monika Pathania
- Internal Medicine, All India Institute of Medical Sciences, Rishikesh, IND
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Singh N. Neurobiological basis for the application of yoga in drug addiction. Front Psychiatry 2024; 15:1373866. [PMID: 38699450 PMCID: PMC11064691 DOI: 10.3389/fpsyt.2024.1373866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 04/04/2024] [Indexed: 05/05/2024] Open
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Machado YDC, Oliveira M, Lima JLF, Bhargav H, Varambally S, de Miranda DM, Romano-Silva MA. Effects of yoga on impulsivity in patients with and without mental disorders: a systematic review. BMC Psychiatry 2024; 24:267. [PMID: 38594701 PMCID: PMC11003078 DOI: 10.1186/s12888-024-05608-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 02/14/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND Yoga can be used as a complementary intervention to conventional treatments, whether pharmacological or non-pharmacological. Sustained practice of yoga can generate a series of benefits for individuals' quality of life and improve their physical fitness. OBJECTIVE To investigate the potential effects of yoga as an adjunct intervention in conditions involving impulse control issues, such as attention deficit hyperactivity disorder (ADHD), borderline personality disorder, bipolar affective disorder, and substance use disorders. METHODS We performed a systematic review of placebo-controlled, randomized trials of yoga in patients with impulsivity. PubMed, Web of Science, and Science Direct databases were searched for trials published up to January, 2023. Data were extracted from published reports and quality assessment was performed per Cochrane recommendations. RESULTS Out of 277 database results, 6 RCT were included in this systematic review. To assess the level of attention and impulsiveness, the following scales were analyzed: Barratt Impulsiveness, UPPS-P Impulsive Behavior scale, Conners' Continuous Performance Test IIª and Conners' Parent Rating Scale-Revised: Long. CONCLUSIONS Yoga didn't have a significant improvement in impulsivity when compared to placebo. There are many tools to assess impulsivity, but they mean different concepts and domains consisting in a weakness on comparison of yoga effects. PROSPERO REGISTRATION CRD42023389088.
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Affiliation(s)
| | - Mariana Oliveira
- Faculdade de Ensino Superior da Amazônia Reunida, Redenção, Brazil
| | | | - Hemant Bhargav
- National Institute of Mental Health and Neurosciences, Bengaluru, India
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Laplaud N, Perrochon A, Gallou-Guyot M, Moens M, Goudman L, David R, Rigoard P, Billot M. Management of post-traumatic stress disorder symptoms by yoga: an overview. BMC Complement Med Ther 2023; 23:258. [PMID: 37480017 PMCID: PMC10360332 DOI: 10.1186/s12906-023-04074-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 07/07/2023] [Indexed: 07/23/2023] Open
Abstract
BACKGROUND Posttraumatic stress disorder (PTSD) can occur after trauma. While PTSD management strategies include first-line pharmacotherapy and psychotherapy, mind-body therapies, such as yoga, are applied in the PTSD population. This overview aimed to summarize the effectiveness of yoga interventions on PTSD symptoms in adults in a systematic review (SR) including randomized controlled trials (RCTs). METHOD We searched for SR with or without meta-analysis of RCTs involving adults with PTSD diagnosis or trauma history. The search was conducted until April 2022, through six databases (Cochrane Database, MEDLINE (Pubmed), Scopus, Embase, CINHAL and PEDro). The primary outcome was the evolution of PTSD symptoms throughout the intervention. Secondary outcomes included follow-up, safety, adherence, and cost of the intervention. Two authors independently performed the selection, data extraction and risk of bias assessment with the AMSTAR 2 tool and overlap calculation. This overview is a qualitative summary of the results obtained in the selected studies. RESULTS Eleven SRs were analyzed, of which 8 included meta-analyses. The overlap between studies was considered very high (corrected covered area of 21%). Fifty-nine RCTs involving 4434 participants were included. Yoga had a significant small-to-moderate effect-size on PTSD symptom decrease in 7 SRs and non-significant effects in 1 SR with meta-analysis. All SR without meta-analysis found beneficial effects of yoga on PTSD. Secondary outcomes were not sufficiently assessed to provide clear evidence. Results should be interpreted with caution as 1 SR was rated as at moderate risk of bias, 3 as low and 7 as critically low. CONCLUSIONS While yoga therapy seems promising for decreasing PTSD symptoms, future research should standardize yoga therapy duration/frequency/type and consider long-term efficacy to better delineate yoga therapy efficacy in PTSD patients.
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Affiliation(s)
- Nina Laplaud
- ILFOMER (Institut Limousin de FOrmation Aux Métiers de La Réadaptation), Université de Limoges, Limoges, France
| | - Anaïck Perrochon
- ILFOMER (Institut Limousin de FOrmation Aux Métiers de La Réadaptation), Université de Limoges, Limoges, France
- Laboratoire HAVAE, Université de Limoges, 20217, Limoges, UR, France
| | | | - Maarten Moens
- Department of Neurosurgery, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
- STIMULUS Research Consortium (Research and TeachIng Neuromodulation Uz Brussel), Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
- Center for Neurosciences (C4N), Vrije Universiteit Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
- Department of Physiotherapy, Pain in Motion (PAIN) Research Group, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
- Department of Radiology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Lisa Goudman
- Department of Neurosurgery, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
- STIMULUS Research Consortium (Research and TeachIng Neuromodulation Uz Brussel), Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
- Center for Neurosciences (C4N), Vrije Universiteit Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
- Department of Physiotherapy, Pain in Motion (PAIN) Research Group, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Brussels, Belgium
- Research Foundation-Flanders (FWO), 1090, Brussels, Belgium
| | - Romain David
- Department of Physical and Rehabilitation Medicine, Poitiers University Hospital, University of Poitiers, 86000, Poitiers, France
- PRISMATICS (Predictive Research In Spine/Neurostimulation Management And Thoracic Innovation in Cardiac Surgery), University Hospital of Poitiers, Poitiers, France
| | - Philippe Rigoard
- PRISMATICS (Predictive Research In Spine/Neurostimulation Management And Thoracic Innovation in Cardiac Surgery), University Hospital of Poitiers, Poitiers, France
- Department of Spine Neurosurgery & Neuromodulation, Poitiers University Hospital, 86000, Poitiers, France
- ISAE-ENSMA, Pprime Institute UPR 3346, CNRS, University of Poitiers, 86000, Poitiers, France
| | - Maxime Billot
- PRISMATICS (Predictive Research In Spine/Neurostimulation Management And Thoracic Innovation in Cardiac Surgery), University Hospital of Poitiers, Poitiers, France.
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Han YMY, Chan MMY, Choi CXT, Law MCH, Ahorsu DK, Tsang HWH. The neurobiological effects of mind-body exercise: a systematic review and meta-analysis of neuroimaging studies. Sci Rep 2023; 13:10948. [PMID: 37415072 PMCID: PMC10326064 DOI: 10.1038/s41598-023-37309-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 06/20/2023] [Indexed: 07/08/2023] Open
Abstract
The neurobiological effects of mind-body exercise on brain activation, functional neural connections and structural changes in the brain remain elusive. This systematic review and coordinate-based meta-analysis investigated the changes in resting-state and task-based brain activation, as well as structural brain changes before and after mind-body exercise compared to waitlist or active controls based on published structural or functional magnetic resonance imaging randomized controlled trials or cross-sectional studies. Electronic database search and manual search in relevant publications yielded 34 empirical studies with low-to-moderate risk of bias (assessed by Cochrane risk-of-bias tool for randomized trials or Joanna Briggs Institute's critical appraisal checklist for analytical cross-sectional studies) that fulfilled the inclusion criteria, with 26 studies included in the narrative synthesis and 8 studies included in the meta-analysis. Coordinate-based meta-analysis showed that, while mind-body exercise enhanced the activation of the left anterior cingulate cortex within the default mode network (DMN), it induced more deactivation in the left supramarginal gyrus within the ventral attention network (uncorrected ps < 0.05). Meta-regression with duration of mind-body practice as a factor showed that, the activation of right inferior parietal gyrus within the DMN showed a positive association with increasing years of practice (voxel-corrected p < 0.005). Although mind-body exercise is shown to selectively modulate brain functional networks supporting attentional control and self-awareness, the overall certainty of evidence is limited by small number of studies. Further investigations are needed to understand the effects of both short-term and long-term mind-body exercise on structural changes in the brain.PROSPERO registration number: CRD42021248984.
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Affiliation(s)
- Yvonne M Y Han
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China.
| | - Melody M Y Chan
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Coco X T Choi
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Maxwell C H Law
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Daniel Kwasi Ahorsu
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
- Department of Special Education and Counselling, The Education University of Hong Kong, Hong Kong SAR, China
| | - Hector W H Tsang
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
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Sugiura M, Katayori Y, Muratsubaki T, Shiratori M, Hanawa S, Nejad KK, Tamura D, Kawashima R, Fukudo S. Automatic adaptive emotion regulation is associated with lower emotion-related activation in the frontoparietal cortex and other cortical regions with multi-componential organization. Front Behav Neurosci 2023; 17:1059158. [PMID: 36950064 PMCID: PMC10025472 DOI: 10.3389/fnbeh.2023.1059158] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 02/07/2023] [Indexed: 03/08/2023] Open
Abstract
Although some researchers consider automatic adaptive emotion regulation to be an automatized strategy whereas others consider it to be implicit disengagement of deliberative process, to date, its neural correlates have been poorly investigated. In addition, the valence specificity of automatic adaptive emotion regulation and levels of activation relative to the neutral condition are controversial; the former is relevant to the attribution of resilient emotion regulation to positivity bias or emotional stability, and the latter to determining whether regulation is based on emotion-specific or emotion-non-specific processes. In this functional magnetic resonance imaging (fMRI) study, we presented positive and negative emotional pictures to healthy young participants and investigated the neural correlates of automatic adaptive emotion regulation in spontaneous emotional response. A significant negative trait effect (i.e., regression coefficient) on activation was identified both for positive and negative emotional responses in various cortical regions. A cluster analysis identified three clusters among these regions based on the valence specificity of the trait effect and level of activation relative to neutral stimuli. Cluster 1 included regions in the sensorimotor cortex characterized by negative emotion-specific decreases in activation relative to neutral stimuli in adaptive individuals. Cluster 2 included several cortical regions including the bilateral dorsal executive network, anterior cingulate, and inferior frontal gyrus, which were characterized by valence-independent decreases in activation in adaptive individuals. Cluster 3 included the bilateral ventrolateral and dorsomedial prefrontal cortices, right insula, and other posterior regions, which were characterized by increased activation for negative stimuli in non-adaptive individuals. These findings support the assumption that automatic adaptive emotion regulation involves the implicit disengagement of deliberative process and suggest the relevance of different cortical networks to the potential emotion- and valence-specificity of adaptive regulation.
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Affiliation(s)
- Motoaki Sugiura
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Yoko Katayori
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomohiko Muratsubaki
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Miyuki Shiratori
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Sugiko Hanawa
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | | | - Daisaku Tamura
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryuta Kawashima
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Shin Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Comparative effectiveness and acceptability of psychotherapies for late-life depression: A systematic review and network meta-analysis. J Affect Disord 2023; 323:409-416. [PMID: 36470553 DOI: 10.1016/j.jad.2022.11.089] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND The purpose of this systematic review and network meta-analysis is to compare the effectiveness and acceptability of psychotherapies for late-life depression. METHODS We searched PubMed, Embase, PsycINFO, CINAHL, The Cochrane Library, China National Knowledge Infrastructure, WANFANG database, and Chinese Biomedicine literature (CBM) for randomized controlled trials (RCTs) from their respective inception dates to March 30, 2022. Comparative effectiveness and acceptability of these psychological interventions were evaluated by conducting standard pairwise meta-analyses and network meta-analyses. A battery of analyses and assessments, such as the risk of bias and certainty of the evidence were performed. RESULTS A total of 68 studies with 4550 participants on six psychotherapies compared with two control groups were included in the final analysis. Notably, there were no statistically significant differences between behavioral activation therapy, cognitive behavior therapy (CBT), cognitive therapy, life review therapy, mindfulness, and combined psychotherapy. Compared with the non-active control group, six psychological interventions were statistically effective in reducing depression symptoms (standardized mean differences (SMDs) range, -1.08 to -0.73). While, only CBT, life review therapy, mindfulness, and combined psychotherapy were more effective than the active control group (SMDs range, -0.85 to -0.74). Life review therapy was ranked as the best option according to effectiveness and acceptability, while behavioral activation therapy was the worst by acceptability. The certainty of the evidence was mostly rated as low to very low. CONCLUSIONS Despite the scarcity of high-quality evidence, all six psychotherapies were effective for late-life depression, and life review therapy seemed to be the best choice in terms of effectiveness and acceptability. The findings of our review could provide policymakers and service commissioners with evidence-based practice for making decisions among different psychotherapies.
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Parajuli N, Shindhe M, Pradhan B. Effect of Surya Namaskara (Sun Salutation) on mental health, self-control and mindfulness of adolescent school children. Complement Ther Clin Pract 2023; 50:101691. [PMID: 36375325 DOI: 10.1016/j.ctcp.2022.101691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/02/2022] [Accepted: 11/06/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND A considerable portion of adolescent school children suffer from mental health problems. Low self-control and mindfulness are positively associated with poor mental health. Therefore, the present study was designed to assess the effect of Surya Namaskara (SN) on mental health, self-control, and mindfulness among adolescent school children. METHODS Sixty-three (39 females) students (mean age = 14.24 years and SD = 0.42 years) in grade nine from a private school in India were recruited as study participants. The design of the present study was a non-randomized two arms design. Section A (N = 33) was selected as the intervention group, whereas section B (N = 30) was considered a control group. Students in the intervention group were given SN for two weeks. The participants were administered the General Health Questionnaire-12 (GHQ-12), Brief Self-control Scale (BSCS), and Mindfulness, Attention and Awareness Scale for Adolescents (MAAS-A) questionnaires at the baseline and after two weeks of intervention. RESULTS The within-group comparison showed a significant main effect of time in MAAS-A scores. There was also a significant group by time interaction effect for BSCS and MAAS-A scores. Post-hoc analysis showed that the SN group has significantly higher post-BSCS and MAAS-A scores than the control group. Similarly, there was a significantly high BSCS score and MAAS-A score after SN intervention compared to their respective pre-scores. There was no significant change in the GHQ-12 scores in both groups in the pre-post comparison. CONCLUSION The present study showed that SN improves self-control and mindfulness in adolescent school children.
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12
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Wang S, Chu Y, Dai H. Role of emotion regulation capacities in affective state among Chinese high school students in the post-pandemic era of COVID-19. Front Psychol 2022; 13:1015433. [PMID: 36571006 PMCID: PMC9773563 DOI: 10.3389/fpsyg.2022.1015433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 11/21/2022] [Indexed: 12/13/2022] Open
Abstract
Objective Psychological wellbeing and emotion regulation skills of vulnerable adolescents have been severely threatened by the long-term impact of the ongoing COVID-19 pandemic. The aim of this study was to seek out the potentially effective emotion regulation strategies to minimize the mental health risk of adolescents during the COVID-19 post-pandemic era. Methods A total of 436 high school students aged 16.07 ± 1.08 years were included in this cross-sectional study to complete questionnaires to self-report socio-demographic information, positive and negative affect state, and emotional regulation abilities. Student's t-test and one-way analysis of variance (ANOVA) were used for intergroup comparisons among socio-demographic variables. Pearson's correlation analysis was used for evaluating the association between each emotion regulation strategy and positivity or negativity. Multiple stepwise linear regression analysis was used for the determination of the predictors for adolescents' positivity and negativity. Results Adolescents' affect was influenced by multiple emotion regulation strategies, including cognitive reappraisal, acceptance and engagement, difficulty in awareness, acceptance, and modification of emotions after adjusting for a range of socio-demographic variables. Conclusion Overall, our findings highlight the importance of emotional regulation strategies in the modulation of the mental health of the vulnerable youth population in China during the COVID-19 crisis. In view of the continuous, multifaceted influence on adolescents' mental health of the ongoing pandemic, more effort should be made to leverage emotion regulation strategies to benefit their coping abilities.
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Affiliation(s)
- Suyan Wang
- Centre for Mental Health Guidance, Jinzhou Medical University, Jinzhou, China
| | - Yuying Chu
- School of Nursing, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Hongliang Dai
- School of Nursing, Jinzhou Medical University, Jinzhou, Liaoning, China,*Correspondence: Hongliang Dai
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13
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Hu Z, Wen Y, Wang Y, Lin Y, Shi J, Yu Z, Lin Y, Wang Y. Effectiveness of mindfulness-based interventions on empathy: A meta-analysis. Front Psychol 2022; 13:992575. [PMID: 36337535 PMCID: PMC9632989 DOI: 10.3389/fpsyg.2022.992575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/29/2022] [Indexed: 10/13/2023] Open
Abstract
Empathy is essential for human survival and social interaction. Although mindfulness-based interventions (MBIs) have been used to improve empathy in healthy populations, its therapeutic efficacy remains unknown. This study aims to investigate the therapeutic effects of MBIs on empathy in a healthy population and the potential factors affecting the efficacy of MBIs. The literature search focused on PubMed, Embase, Web of Science, Cochrane Library, and CNKI from inception to September 2022. Randomized controlled trials and quasi-experimental studies reporting the effects of using MBIs on empathy in healthy populations were included. A total of 13 studies were included in this review. Results of the meta-analysis showed that MBIs improved empathy (SMD, 0.372, 95% CI, 0.164-0.579, p = 0.001) in the healthy population compared with that in the control group. Moreover, results of the subgroup analysis showed that intervention dose (over 24 h vs. under 24 h), format (online vs. offline), and types (different types) were important factors affecting treatment outcomes. This comprehensive review suggests that MBIs are effective treatment for empathy in healthy population. Future research should markedly focus on large-sample, rigorously designed experiments to explore the long-term effects of MBIs on empathy and to elucidate the underlying mechanisms of MBIs. This study provides a reference for the daily application of MBIs.
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Affiliation(s)
- Zhengyu Hu
- Department of Sport Rehabilitation, Shenyang Sport University, Shenyang, China
- Rehabilitation Medicine Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yurong Wen
- Rehabilitation Medicine Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Yafei Wang
- Rehabilitation Medicine Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yangyang Lin
- Rehabilitation Medicine Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jian Shi
- Department of Sport Rehabilitation, Shenyang Sport University, Shenyang, China
- Rehabilitation Medicine Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zihan Yu
- Department of Sport Rehabilitation, Shenyang Sport University, Shenyang, China
| | - Youtian Lin
- Rehabilitation Medicine Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Postgraduate Research Institute, Guangzhou Sport University, Guangzhou, China
| | - Yuling Wang
- Rehabilitation Medicine Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Sars D. PE augmented mindfulness: A neurocognitive framework for research and future healthcare. Front Hum Neurosci 2022; 16:899988. [PMID: 36082227 PMCID: PMC9446465 DOI: 10.3389/fnhum.2022.899988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 07/21/2022] [Indexed: 11/13/2022] Open
Abstract
Various well-controlled studies have suggested that practitioners in mindfulness can be prone to patient drop-out (e.g., due to chronic stress, pathology, cognitive reactivity), despite researchers having identified the underlying mechanisms that link mindfulness to mental health. In this article, a framework for physical exercise (PE) augmented mindfulness is proposed, which posits that consistently practiced PE before meditation can support (early-stage) mindfulness. Neurocognitive research shows PE (aerobic exercises or yoga) and mindfulness to impact similar pathways of stress regulation that involve cognitive control and stress regulation, thereby supporting the proposed synergistic potential of PE augmented mindfulness. Research focused on the psychophysiological impact of PE, showed its practice to promote short-term neurocognitive changes that can promote both cognitive control and the attainment of mindful awareness (MA). In order to chart dose responses required for protocol development, further research will be presented. Together these findings are discussed in light of future research on this multidisciplinary topic, protocol development, mindful walking, and further application in healthcare and beyond.
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Affiliation(s)
- David Sars
- Mettaminds.org, Mindfulness Based Projects, Amsterdam, Netherlands
- Centre for Integral Rehabilitation (CIR), Amsterdam, Netherlands
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15
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Parajuli N, Pradhan B, Bapat S. Effect of yoga on cognitive functions and anxiety among female school children with low academic performance: A randomized control trial. Complement Ther Clin Pract 2022; 48:101614. [DOI: 10.1016/j.ctcp.2022.101614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 05/03/2022] [Accepted: 05/29/2022] [Indexed: 11/30/2022]
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Gupta A, Garg R, Singh V. Using Traditional Typologies to Understand Posture Movement and Cognitive Performance - A cross sectional study. Int J Yoga 2022; 15:106-113. [PMID: 36329775 PMCID: PMC9623887 DOI: 10.4103/ijoy.ijoy_12_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/26/2022] [Accepted: 06/10/2022] [Indexed: 06/16/2023] Open
Abstract
CONTEXT We employed two classification methods that characterize psycho-somatotype categorization to understand motor and cognitive performance. The Trunk Index produces three somatotypes/body type categories: ectomorphs, mesomorphs, and endomorphs, and Prakriti classifications categorizes people into three categories: Vata, Pitta, and Kapha. Comparing these two categorization methods offers insights into anthropometric measures that combine psychological and physical characteristics to account for motor and cognitive behavior. AIMS The present study examined variations in cognitive and motor performances using the two typologies - prakriti and somato body types using cross-sectional study design. SUBJECTS AND METHODS The study employed fifty-eight healthy young adults, classified into prakriti (vata, pitta, kapha) and ecto-, meso-, endo-morph body types, to examine their cognitive performance (reaction time [RT] and accuracy), and motor performance (posture stability and posture accuracy) in standing yoga postures. STATISTICAL ANALYSIS USED Analysis of covariance was performed to compare the cognitive and postural performance across the three somato and prakriti types after adjusting for age and gender as covariates. Post-hoc analysis of Bonferroni was performed with the consideration of Levene's test. Partial correlations were employed to investigate the correlation between postural stability and cognitive performance measures for each of the prakriti- and somato-body types as well as between the prakriti typology (scores) and trunk index values (adjusting the effects of age and gender as control variables). A P < 0.05 was selected at the statistical significance level. SPSS 26.0 version was used for the analysis. RESULTS Cognitive performance was observed to vary in terms of RT across somato- and prakriti body types (P < 0.05). Postural stability and cognitive performance are positively connected only for ectomorph body types (P < 0.05). Variations in motor performance were not significant. Barring ectomorph type, no other somato- and prakriti body types showed significant relationships between postural stability and cognitive performance. Likewise, the association between the features used for prakriti classification, and the trunk index scores showed marginal significance, only for a small subset of physical features of prakriti assessment (P = 0.055) (P1). CONCLUSIONS Comparing classifications that use psychophysical attributes might offer insights into understanding variations in measures of motor and cognitive performance in a sample of healthy individuals.
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Affiliation(s)
- Ankit Gupta
- National Resource Centre for Value Education in Engineering, Indian Institute of Technology, Delhi, India
| | - Rahul Garg
- National Resource Centre for Value Education in Engineering, Indian Institute of Technology, Delhi, India
- Department of Computer Science and Engineering, Indian Institute of Technology Delhi, India
- Amar Nath and Shashi Khosla School of Information Technology, Indian Institute of Technology Delhi, New Delhi, India
| | - Varsha Singh
- Department of Humanities and Social Sciences, Indian Institute of Technology, New Delhi, India
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Sefat O, Salehinejad MA, Danilewitz M, Shalbaf R, Vila-Rodriguez F. Combined Yoga and Transcranial Direct Current Stimulation Increase Functional Connectivity and Synchronization in the Frontal Areas. Brain Topogr 2022; 35:207-218. [DOI: 10.1007/s10548-022-00887-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 01/02/2022] [Indexed: 11/28/2022]
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Herbert C. Can Yoga Boost Access to the Bodily and Emotional Self? Changes in Heart Rate Variability and in Affective Evaluation Before, During and After a Single Session of Yoga Exercise With and Without Instructions of Controlled Breathing and Mindful Body Awareness in Young Healthy Women. Front Psychol 2021; 12:731645. [PMID: 34925139 PMCID: PMC8678535 DOI: 10.3389/fpsyg.2021.731645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/06/2021] [Indexed: 01/08/2023] Open
Abstract
Exercise is indispensable for a healthy lifestyle. Yoga exercise can have positive effects on well-being and on cardiac autonomic activity making it an ideal intervention for improving mind-body interactions and resilience to physical and mental stressors. Emotions trigger especially strong bodily and affective-cognitive responses because of their social relevance for the self and their biological relevance of mobilizing the organism for action. This study investigates whether changes in emotion processing related to self-other referential processing and changes in cardiac autonomic activity, reflected by heart rate variability (HRV), occur immediately after already a single session of yoga exercise when yoga postures are practiced with or without breathing- and mindful body awareness instructions. Women, all university students (N = 34, final sample: n = 30, n = 25 naïve to yoga practice) were randomly assigned to two experimental groups who performed the same yoga exercises with or without controlled breathing and mindfulness instructions. Emotional, self-other referential processing, awareness of bodily signals and HRV indicators were investigated before and after the exercise using standardized experimental tasks, standardized questionnaires, and mobile recording devices. Exercising for 30 minutes changed cardiac activity significantly. HRV measures showed adaptability of cardiac activity during the exercise as well as during the affective task post- to pre-exercise. Exercising with breathing instructions and mindful body awareness had no superior effects on cardiac, particularly parasympathetic activity, compared to practicing the same movements without such explicit instructions. Self-referential processing did not change; however, participants were faster and more accurate in their affective judgments of emotional stimuli [regardless of their reference (self/other)], and showed better awareness of bodily signals after compared to before the exercise session. The results support immediate, adaptive effects of yoga exercise on cardiac and affective-cognitive processing in an all-female healthy sample. Therefore, yoga exercise could be recommended as a physical activity for boosting cardiac and emotional resilience in this target group.
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Affiliation(s)
- Cornelia Herbert
- Department of Emotion and Motivation Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany
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19
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Mahalakshmi AM, Ray B, Tuladhar S, Hediyal TA, Raj P, Rathipriya AG, Qoronfleh MW, Essa MM, Chidambaram SB. Impact of Pharmacological and Non-Pharmacological Modulators on Dendritic Spines Structure and Functions in Brain. Cells 2021; 10:3405. [PMID: 34943913 PMCID: PMC8699406 DOI: 10.3390/cells10123405] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/27/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022] Open
Abstract
Dendritic spines are small, thin, hair-like protrusions found on the dendritic processes of neurons. They serve as independent compartments providing large amplitudes of Ca2+ signals to achieve synaptic plasticity, provide sites for newer synapses, facilitate learning and memory. One of the common and severe complication of neurodegenerative disease is cognitive impairment, which is said to be closely associated with spine pathologies viz., decreased in spine density, spine length, spine volume, spine size etc. Many treatments targeting neurological diseases have shown to improve the spine structure and distribution. However, concise data on the various modulators of dendritic spines are imperative and a need of the hour. Hence, in this review we made an attempt to consolidate the effects of various pharmacological (cholinergic, glutamatergic, GABAergic, serotonergic, adrenergic, and dopaminergic agents) and non-pharmacological modulators (dietary interventions, enriched environment, yoga and meditation) on dendritic spines structure and functions. These data suggest that both the pharmacological and non-pharmacological modulators produced significant improvement in dendritic spine structure and functions and in turn reversing the pathologies underlying neurodegeneration. Intriguingly, the non-pharmacological approaches have shown to improve intellectual performances both in preclinical and clinical platforms, but still more technology-based evidence needs to be studied. Thus, we conclude that a combination of pharmacological and non-pharmacological intervention may restore cognitive performance synergistically via improving dendritic spine number and functions in various neurological disorders.
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Affiliation(s)
- Arehally M. Mahalakshmi
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
- SIG-Brain, Behaviour and Cognitive Neurosciences Research (BBRC), JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Bipul Ray
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Sunanda Tuladhar
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Tousif Ahmed Hediyal
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Praveen Raj
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
| | | | - M. Walid Qoronfleh
- Q3CG Research Institute (QRI), Research and Policy Division, 7227 Rachel Drive, Ypsilanti, MI 48917, USA;
| | - Musthafa Mohamed Essa
- Department of Food Science and Nutrition, CAMS, Sultan Qaboos University, Muscat 123, Oman
- Ageing and Dementia Research Group, Sultan Qaboos University, Muscat 123, Oman
- Biomedical Sciences Department, University of Pacific, Sacramento, CA 95211, USA
| | - Saravana Babu Chidambaram
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
- SIG-Brain, Behaviour and Cognitive Neurosciences Research (BBRC), JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
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Jiang D, Liu Z, Sun G. The Effect of Yoga Meditation Practice on Young Adults' Inhibitory Control: An fNIRS Study. Front Hum Neurosci 2021; 15:725233. [PMID: 34588968 PMCID: PMC8475714 DOI: 10.3389/fnhum.2021.725233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 08/24/2021] [Indexed: 11/26/2022] Open
Abstract
Objectives: The present study aimed to test the effect of yoga meditation (YoMed) practice on inhibitory control of young adults. Methods: A total of 50 participants (23 male, 21–28 years old) from a university in Jinan, Shandong Province were enrolled in this study. Participants were randomly assigned to a YoMed group or a Control group. Participants’ basic information, physical activity, and inhibitory control were measured. A multi-channel continuous-wave near-infrared spectrometer was used to monitor the brain’s hemodynamic responses. Results: After the intervention, we found significant differences in Flanker tasks between the YoMed group and Control group. The accuracy in the YoMed group was higher than those in the Control group (p < 0.05). Analysis of fNIRS data showed that oxyhemoglobin (oxy-Hb) levels in the prefrontal cortex (PFC) increased in the YoMed group during the Flanker tasks after the YoMed intervention. Conclusion: YoMed has a temporarily promoting effect on the brain activation of young adults. It is an effective and appropriate exercise to improve the inhibitory control of young adults.
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Affiliation(s)
- Dongdong Jiang
- School of Physical Education, Shandong University, Jinan, China
| | - Zongyu Liu
- School of Physical Education, Shandong University, Jinan, China
| | - Guoxiao Sun
- School of Physical Education, Shandong University, Jinan, China
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21
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An Overview on Cognitive Function Enhancement through Physical Exercises. Brain Sci 2021; 11:brainsci11101289. [PMID: 34679354 PMCID: PMC8534220 DOI: 10.3390/brainsci11101289] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/12/2021] [Accepted: 09/18/2021] [Indexed: 11/18/2022] Open
Abstract
This review is extensively focused on the enhancement of cognitive functions while performing physical exercises categorized into cardiovascular exercises, resistance training, martial arts, racquet sports, dancing and mind-body exercises. Imaging modalities, viz. functional magnetic resonance imaging (fMRI), functional near-infrared spectroscopy (fNIRS) and electroencephalography (EEG), have been included in this review. This review indicates that differences are present in cognitive functioning while changing the type of physical activity performed. This study concludes that employing fNIRS helps overcome certain limitations of fMRI. Further, the effects of physical activity on a diverse variety of the population, from active children to the old people, are discussed.
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22
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Fu H, Garrett B, Tao G, Cordingley E, Ofoghi Z, Taverner T, Sun C, Cheung T. Virtual Reality-Guided Meditation for Chronic Pain in Patients With Cancer: Exploratory Analysis of Electroencephalograph Activity. JMIR BIOMEDICAL ENGINEERING 2021; 6:e26332. [PMID: 38907380 PMCID: PMC11135186 DOI: 10.2196/26332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 04/23/2021] [Accepted: 04/29/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Mindfulness-based stress reduction has demonstrated some efficacy for chronic pain management. More recently, virtual reality (VR)-guided meditation has been used to assist mindfulness-based stress reduction. Although studies have also found electroencephalograph (EEG) changes in the brain during mindfulness meditation practices, such changes have not been demonstrated during VR-guided meditation. OBJECTIVE This exploratory study is designed to explore the potential for recording and analyzing EEG during VR experiences in terms of the power of EEG waveforms, topographic mapping, and coherence. We examine how these measures changed during a VR-guided meditation experience in participants with cancer-related chronic pain. METHODS A total of 10 adult patients with chronic cancer pain underwent a VR-guided meditation experience while EEG signals were recorded during the session using a BioSemi ActiveTwo system (64 channels, standard 10-20 configuration). The EEG recording session consisted of an 8-minute resting condition (pre), a 30-minute sequence of 3 VR-guided meditation conditions (med), and a final rest condition (post). Power spectral density (PSD) was compared between each condition using a cluster-based permutation test and across conditions using multivariate analysis of variance. A topographic analysis, including coherence exploration, was performed. In addition, an exploratory repeated measures correlation was used to examine possible associations between pain scores and EEG signal power. RESULTS The predominant pattern was for increased β and γ bandwidth power in the meditation condition (P<.025), compared with both the baseline and postexperience conditions. Increased power in the δ bandwidth was evident, although not statistically significant. The pre versus post comparison also showed changes in the θ and α bands (P=.02) located around the frontal, central, and parietal cortices. Across conditions, multivariate analysis of variance tests identified 4 clusters with significant (P<.05) PSD differences in the δ, θ, β, and γ bands located around the frontal, central, and parietal cortices. Topographically, 5 peak channels were identified: AF7, FP2, FC1, CP5, and P5, and verified the changes in power in the different brain regions. Coherence changes were observed primarily between the frontal, parietal, and occipital regions in the θ, α, and γ bands (P<.0025). No significant associations were observed between pain scores and EEG PSD. CONCLUSIONS This study demonstrates the feasibility of EEG recording in exploring neurophysiological changes in brain activity during VR-guided meditation and its effect on pain reduction. These findings suggest that distinct altered neurophysiological brain signals are detectable during VR-guided meditation. However, these changes were not necessarily associated with pain. These exploratory findings may guide further studies to investigate the highlighted regions and EEG bands with respect to VR-guided meditation. TRIAL REGISTRATION ClinicalTrials.gov NCT00102401; http://clinicaltrials.gov/ct2/show/NCT00102401.
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Affiliation(s)
- Henry Fu
- School of Engineering Science, Simon Fraser University, Burnaby, BC, Canada
| | - Bernie Garrett
- School of Nursing, University of British Columbia, Vancouver, BC, Canada
| | - Gordon Tao
- School of Rehabilitation Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Elliott Cordingley
- School of Nursing, University of British Columbia, Vancouver, BC, Canada
| | - Zahra Ofoghi
- School of Interactive Arts and Technology, Simon Fraser University, Surrey, BC, Canada
| | - Tarnia Taverner
- School of Nursing, University of British Columbia, Vancouver, BC, Canada
| | - Crystal Sun
- School of Nursing, University of British Columbia, Vancouver, BC, Canada
| | - Teresa Cheung
- School of Engineering Science, Simon Fraser University, Burnaby, BC, Canada
- Surrey Memorial Hospital, Fraser Health Authority, Surrey, BC, Canada
- Behavioural and Cognitive Neuroscience Institute, Simon Fraser University, Burnaby, BC, Canada
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Shortland ND, McGarry P, Thompson L, Stevens C, Alison LJ. The Effect of a 3-Minute Mindfulness Intervention, and the Mediating Role of Maximization, on Critical Incident Decision-Making. Front Psychol 2021; 12:674694. [PMID: 34122271 PMCID: PMC8194826 DOI: 10.3389/fpsyg.2021.674694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/30/2021] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE In this study, we extend the impact of mindfulness to the concept of least-worst decision-making. Least-worst decisions involve high-uncertainty and require the individual to choose between a number of potentially negative courses of action. Research is increasingly exploring least-worst decisions, and real-world events (such as the COVID-19 pandemic) show the need for individuals to overcome uncertainty and commit to a least-worst course of action. From sports to business, researchers are increasingly showing that "being mindful" has a range of positive performance-related benefits. We hypothesized that mindfulness would improve least-worst decision-making because it would increase self-reflection and value identification. However, we also hypothesized that trait maximization (the tendency to attempt to choose the "best" course of action) would negatively interact with mindfulness. METHODS Three hundred and ninety-eight participants were recruited using Amazon MTurk and exposed to a brief mindfulness intervention or a control intervention (listening to an audiobook). After this intervention, participants completed the Least-Worst Uncertain Choice Inventory for Emergency Responders (LUCIFER). RESULTS As hypothesized, mindfulness increased decision-making speed and approach-tendencies. Conversely, for high-maximizers, increased mindfulness caused a slowing of the decision-making process and led to more avoidant choices. CONCLUSIONS This study shows the potential positive and negative consequences of mindfulness for least-worst decision-making, emphasizing the critical importance of individual differences when considering both the effect of mindfulness and interventions aimed at improving decision-making.
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Affiliation(s)
- Neil D. Shortland
- Department of Criminology and Criminal Justice, University of Massachusetts Lowell, Lowell, MA, United States
| | - Presley McGarry
- Department of Criminology and Criminal Justice, University of Massachusetts Lowell, Lowell, MA, United States
| | - Lisa Thompson
- Department of Criminology and Criminal Justice, University of Massachusetts Lowell, Lowell, MA, United States
| | - Catherine Stevens
- Department of Criminology and Criminal Justice, University of Massachusetts Lowell, Lowell, MA, United States
| | - Laurence J. Alison
- Centre for Critical and Major Incident Psychology, University of Liverpool, Liverpool, United Kingdom
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Favre P, Kanske P, Engen H, Singer T. Decreased emotional reactivity after 3-month socio-affective but not attention- or meta-cognitive-based mental training: A randomized, controlled, longitudinal fMRI study. Neuroimage 2021; 237:118132. [PMID: 33951510 DOI: 10.1016/j.neuroimage.2021.118132] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 03/22/2021] [Accepted: 04/26/2021] [Indexed: 12/18/2022] Open
Abstract
Meditation-based mental training interventions show physical and mental health benefits. However, it remains unclear how different types of mental practice affect emotion processing at both the neuronal and the behavioural level. In the context of the ReSource project, 332 participants underwent an fMRI scan while performing an emotion anticipation task before and after three 3-month training modules cultivating 1) attention and interoceptive awareness (Presence); 2) socio-affective skills, such as compassion (Affect); 3) socio-cognitive skills, such as theory of mind (Perspective). Only the Affect module led to a significant reduction of experienced negative affect when processing images depicting human suffering. In addition, after the Affect module, participants showed significant increased activation in the right supramarginal gyrus when confronted with negative stimuli. We conclude that socio-affective, but not attention- or meta-cognitive based mental training is specifically effective to improve emotion regulation capabilities when facing adversity.
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Affiliation(s)
- Pauline Favre
- Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
| | - Philipp Kanske
- Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Haakon Engen
- Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Tania Singer
- Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
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25
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Crossan M, Ellis C, Crossan C. Towards a Model of Leader Character Development: Insights From Anatomy and Music Therapy. JOURNAL OF LEADERSHIP & ORGANIZATIONAL STUDIES 2021. [DOI: 10.1177/15480518211005455] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Leader character has emerged as a critical foundation for leadership. In spite of the view that leader character can be developed, there has been limited holistic attention to what it takes to develop character. Character requires conscious development, and that conscious development not only requires an understanding of what character is, but how the anatomy of character enables and inhibits character development and expression. By anatomy, we refer to the four underlying anatomical systems—physiology, affect, behavior, and cognition (PABC)—that function independently, and in an interrelated manner, to support the development of character. For illustration, we offer the practice of listening to music as a means to develop character, highlighting the links between the PABC systems and character development.
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Affiliation(s)
- Mary Crossan
- Ivey Business School, Western University, London, ON, Canada
| | - Cassandra Ellis
- Ivey Business School, Western University, London, ON, Canada
| | - Corey Crossan
- School of Kinesiology, Western University, London, ON, Canada
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26
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Effects of Mind-Body Exercise on Brain Structure and Function: A Systematic Review on MRI Studies. Brain Sci 2021; 11:brainsci11020205. [PMID: 33562412 PMCID: PMC7915202 DOI: 10.3390/brainsci11020205] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/26/2021] [Accepted: 02/04/2021] [Indexed: 02/06/2023] Open
Abstract
Mind–body exercise has been proposed to confer both physical and mental health benefits. However, there is no clear consensus on the neural mechanisms underlying the improvements in health. Herein, we conducted a systematic review to reveal which brain region or network is regulated by mind–body exercise. PubMed, Web of Science, PsycINFO, SPORTDiscus, and China National Knowledge Infrastructure databases were systematically searched to identify cross-sectional and intervention studies using magnetic resonance imaging (MRI) to explore the effect of mind–body exercise on brain structure and function, from their inception to June 2020. The risk of bias for cross-sectional studies was assessed using the Joanna Briggs Institute (JBI) checklist, whereas that of interventional studies was analyzed using the Physiotherapy Evidence Database (PEDro) scale. A total of 15 studies met the inclusion criteria. Our analysis revealed that mind–body exercise modulated brain structure, brain neural activity, and functional connectivity, mainly in the prefrontal cortex, hippocampus/medial temporal lobe, lateral temporal lobe, insula, and the cingulate cortex, as well as the cognitive control and default mode networks, which might underlie the beneficial effects of such exercises on health. However, due to the heterogeneity of included studies, more randomized controlled trials with rigorous designs, similar measured outcomes, and whole-brain analyses are warranted.
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27
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Owen-Smith A, Black H, Emerson D, Cotner M, Smith H, Jackson D, Ford JD, DeBar L, DiClemente R, Hayat MJ. A Pilot Study to Adapt a Trauma-Informed, Mindfulness-Based Yoga Intervention for Justice-Involved Youth. Int J Yoga Therap 2021; 31:Article_18. [PMID: 34875056 PMCID: PMC10775923 DOI: 10.17761/2021-d-21-00032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The purpose of the present study was to adapt and pilot a trauma-informed, mindfulness-based yoga (TIMBY) intervention focused on enhancing self-regulation among youth in the Georgia Department of Juvenile Justice system. In this article we (1) describe the process by which we systematically adapted an evidence-based protocol specifically for this population, (2) describe the nature of and rationale for those adaptations, (3) present some preliminary qualitative findings based on interviews with youth participants, and (4) briefly summarize how the adapted protocol will be evaluated in the subsequent feasibility trial. The iterative drafting and revision process involved modifications to a well-established, protocolized Trauma-Informed Yoga program and was identified by the project advisory board and t h rough formal interviews with intervention staff. Qualitative interviews were conducted with youth participants concerning intervention impact, credibility, and satisfaction. Several needed modifications were identified so that the intervention would be contextually appropriate for justice-involved youth. Thirty youth were enrolled in the pilot study: 77% we re Non - Hispanic Black/African-American, 18% were Non-Hispanic White, and 5% were Hispanic White. The average age was 16.45 years (range 14-20). The youth consistently reported satisfaction with the sessions and positive beliefs about how the sessions were helping them with a range of physical and psychological/ emotional challenges. Adaptations to the protocol in the present study highlight how mindfulness-based interventions for justice-involved youth need to consider what is both developmentally suitable for youth and appropriate in a justice setting. A feasibility study using this revised TIMBY protocol is underway at four Georgia Department of Juvenile Justice facilities to formally identify the barriers and facilitators to implementation for the present study and a future, larger-scale trial.
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Affiliation(s)
| | | | - David Emerson
- Trauma Center Trauma Sensitive Yoga Facilitator, Center for Trauma and Embodiment, Justice Resource Institute, Needham, Mass
| | | | - Herschel Smith
- School of Public Health, Georgia State University, Atlanta
| | | | - Julian D Ford
- School of Medicine, University of Connecticut, Farmington
| | - Lynn DeBar
- Kaiser Permanente Washington Health Research Institute, Seattle, Wash
| | - Ralph DiClemente
- New York University School of Global Public Health, New York, N.Y
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Puyat JH, Ahmad H, Avina-Galindo AM, Kazanjian A, Gupta A, Ellis U, Ashe MC, Vila-Rodriguez F, Halli P, Salmon A, Vigo D, Almeida A, De Bono CE. A rapid review of home-based activities that can promote mental wellness during the COVID-19 pandemic. PLoS One 2020; 15:e0243125. [PMID: 33270755 PMCID: PMC7714353 DOI: 10.1371/journal.pone.0243125] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 11/16/2020] [Indexed: 01/21/2023] Open
Abstract
Background During the COVID-19 pandemic, public health measures such as isolation, quarantine, and social distancing are needed. Some of these measures can adversely affect mental health. Activities that can be performed at home may mitigate these consequences and improve overall mental well-being. In this study, home-based activities that have potential beneficial effects on mental health were examined. Methods A rapid review was conducted based on a search of the following databases: MEDLINE, EMBASE, CINAHL, PyscINFO, Global Health, epistemonikos.org, covid19reviews.org, and eppi.ioe.ac.uk/covid19_map_v13.html. Eligible studies include randomized controlled trials and non-randomized studies published between 1/1/2000 and 28/05/2020 and that examined the impact of various activities on mental health outcomes in low-resource settings and contexts that lead to social isolation. Studies of activities that require mental health professionals or that could not be done at home were excluded. Two review authors performed title/abstract screening. At the full-text review stage, 25% of the potentially eligible studies were reviewed in full by two review authors; the rest were reviewed by one review author. Risk of bias assessment and data extraction were performed by one review author and checked by a second review author. The main outcome assessed was change or differences in mental health as expressed in Cohen’s d; analysis was conducted following the synthesis without meta-analysis guidelines (SWiM). PROSPERO registration: CRD42020186082. Results Of 1,236 unique records identified, 160 were reviewed in full, resulting in 16 included studies. The included studies reported on the beneficial effects of exercise, yoga, progressive muscle relaxation, and listening to relaxing music. One study reported on the association between solitary religious activities and post traumatic stress disorder symptoms. While most of the included studies examined activities in group settings, particularly among individuals in prisons, the activities were described as something that can be performed at home and alone. All included studies were assessed to be at risk of bias in one or more of the bias domains examined. Conclusions There is some evidence that certain home-based activities can promote mental wellness during the COVID-19 pandemic. Guidelines are needed to help optimize benefits while minimizing potential risks when performing these activities.
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Affiliation(s)
- Joseph H. Puyat
- Centre for Health Evaluation and Outcome Sciences, Providence Health Care and The University of British Columbia, Vancouver, Canada
- School of Population & Public Health, The University of British Columbia, Vancouver, Canada
- * E-mail:
| | - Haroon Ahmad
- Department of Psychiatry, Faculty of Medicine, The University of British Columbia, Vancouver, Canada
| | - Ana Michelle Avina-Galindo
- Non-Invasive Neurostimulation Therapies Laboratory, Department of Psychiatry, The University of British Columbia, Vancouver, Canada
| | - Arminee Kazanjian
- School of Population & Public Health, The University of British Columbia, Vancouver, Canada
| | - Aanchel Gupta
- Centre for Health Evaluation and Outcome Sciences, Providence Health Care and The University of British Columbia, Vancouver, Canada
- School of Population & Public Health, The University of British Columbia, Vancouver, Canada
| | - Ursula Ellis
- Woodward Library, The University of British Columbia, Vancouver, Canada
| | - Maureen C. Ashe
- Department of Family Practice, The University of British Columbia, Vancouver, Canada
| | - Fidel Vila-Rodriguez
- Non-Invasive Neurostimulation Therapies Laboratory, Department of Psychiatry, The University of British Columbia, Vancouver, Canada
| | - Priyanka Halli
- Department of Psychiatry, Faculty of Medicine, The University of British Columbia, Vancouver, Canada
| | - Amy Salmon
- Centre for Health Evaluation and Outcome Sciences, Providence Health Care and The University of British Columbia, Vancouver, Canada
- School of Population & Public Health, The University of British Columbia, Vancouver, Canada
| | - Daniel Vigo
- School of Population & Public Health, The University of British Columbia, Vancouver, Canada
- Department of Psychiatry, Faculty of Medicine, The University of British Columbia, Vancouver, Canada
| | - Alberto Almeida
- Mental Health Program, Providence Health Care, Vancouver, British Columbia, Canada
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29
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Dahan L, Rampon C, Florian C. Age-related memory decline, dysfunction of the hippocampus and therapeutic opportunities. Prog Neuropsychopharmacol Biol Psychiatry 2020; 102:109943. [PMID: 32298784 DOI: 10.1016/j.pnpbp.2020.109943] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 04/01/2020] [Accepted: 04/01/2020] [Indexed: 12/13/2022]
Abstract
While the aging of the population is a sign of progress for societies, it also carries its load of negative aspects. Among them, cognitive decline and in particular memory loss is a common feature of non-pathological aging. Autobiographical memories, which rely on the hippocampus, are a primary target of age-related cognitive decline. Here, focusing on the neurobiological mechanisms of memory formation and storage, we describe how hippocampal functions are altered across time in non-pathological mammalian brains. Several hallmarks of aging have been well described over the last decades; among them, we consider altered synaptic communication and plasticity, reduction of adult neurogenesis and epigenetic alterations. Building on the neurobiological processes of cognitive aging that have been identified to date, we review some of the strategies based on lifestyle manupulation allowing to address age-related cognitive deficits.
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Affiliation(s)
- Lionel Dahan
- Centre de Recherches sur la Cognition Animale (CRCA), Centre de Biologie Intégrative (CBI), Université de Toulouse; CNRS, UPS, Toulouse Cedex 9, France
| | - Claire Rampon
- Centre de Recherches sur la Cognition Animale (CRCA), Centre de Biologie Intégrative (CBI), Université de Toulouse; CNRS, UPS, Toulouse Cedex 9, France
| | - Cédrick Florian
- Centre de Recherches sur la Cognition Animale (CRCA), Centre de Biologie Intégrative (CBI), Université de Toulouse; CNRS, UPS, Toulouse Cedex 9, France.
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30
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A Comparison of the Acute Effects of Different Forms of Yoga on Physiological and Psychological Stress: A Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17176090. [PMID: 32825677 PMCID: PMC7503485 DOI: 10.3390/ijerph17176090] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 08/18/2020] [Indexed: 11/17/2022]
Abstract
Yoga is a frequently recommended stress management strategy; however, the acute stress response to varying types of yoga are not fully clear. Thus, the purpose of this study was to compare the acute effects of meditative and power yoga on indices of physiological and psychological stress. In a crossover counterbalanced design, physically active females (n = 13; age = 20.8 yrs ± 0.8, height = 164.5 cm ± 6.1, body mass = 65.0 kg ± 13.8) who did not regularly participate in yoga or mindful training enrolled in this study. Participants completed two visits each, with a standardized instructional-video 30-min yoga session with either A) meditative (Hatha style) yoga or B) power (Vinyasa style) yoga. Prior to and immediately after each yoga bout, psychological stress was assessed using the State–Trait Anxiety Inventory (STAI) questionnaire, and salivary cortisol samples were obtained to measure indices of physiological stress. State anxiety scores were significantly lower following meditative yoga (p = 0.047) but were not different following power yoga (p = 0.625). Salivary cortisol levels were significantly lower following meditative yoga (p = 0.020) but not following power yoga (p = 0.242). Results indicate that acute engagement in meditative yoga decreases markers of psychological and physiological stress, while power yoga does not impart a significant stress-relieving benefit. Findings indicate that differing types of yoga may have various stress-relieving capabilities and should be considered by individuals seeking anxiolytic benefits.
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31
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van Aalst J, Ceccarini J, Demyttenaere K, Sunaert S, Van Laere K. What Has Neuroimaging Taught Us on the Neurobiology of Yoga? A Review. Front Integr Neurosci 2020; 14:34. [PMID: 32733213 PMCID: PMC7362763 DOI: 10.3389/fnint.2020.00034] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/29/2020] [Indexed: 12/13/2022] Open
Abstract
Yoga is becoming increasingly popular worldwide, with several implicated physical and mental benefits. Here we provide a comprehensive and critical review of the research generated from the existing neuroimaging literature in studies of yoga practitioners. We reviewed 34 international peer-reviewed neuroimaging studies of yoga using magnetic resonance imaging (MRI), positron emission tomography (PET), or single-photon emission computed tomography (SPECT): 11 morphological and 26 functional studies, including three studies that were classified as both morphological and functional. Consistent findings include increased gray matter volume in the insula and hippocampus, increased activation of prefrontal cortical regions, and functional connectivity changes mainly within the default mode network. There is quite some variability in the neuroimaging findings that partially reflects different yoga styles and approaches, as well as sample size limitations. Direct comparator groups such as physical activity are scarcely used so far. Finally, hypotheses on the underlying neurobiology derived from the imaging findings are discussed in the light of the potential beneficial effects of yoga.
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Affiliation(s)
- June van Aalst
- Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, UZ/KU Leuven, Leuven, Belgium
| | - Jenny Ceccarini
- Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, UZ/KU Leuven, Leuven, Belgium
| | - Koen Demyttenaere
- Research Group Psychiatry, Department of Neuroscience, University Psychiatry Center KU Leuven, Leuven, Belgium.,Adult Psychiatry, UZ Leuven, Leuven, Belgium
| | - Stefan Sunaert
- Translational MRI, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium.,Department of Radiology, UZ Leuven, Leuven, Belgium
| | - Koen Van Laere
- Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, UZ/KU Leuven, Leuven, Belgium.,Division of Nuclear Medicine, UZ Leuven, Leuven, Belgium
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32
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van Aalst J, Ceccarini J, Schramm G, Van Weehaeghe D, Rezaei A, Demyttenaere K, Sunaert S, Van Laere K. Long-term Ashtanga yoga practice decreases medial temporal and brainstem glucose metabolism in relation to years of experience. EJNMMI Res 2020; 10:50. [PMID: 32410000 PMCID: PMC7225240 DOI: 10.1186/s13550-020-00636-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 04/22/2020] [Indexed: 12/13/2022] Open
Abstract
Background Yoga is increasingly popular worldwide with several physical and mental benefits, but the underlying neurobiology remains unclear. Whereas many studies have focused on pure meditational aspects, the triad of yoga includes meditation, postures, and breathing. We conducted a cross-sectional study comparing experienced yoga practitioners to yoga-naive healthy subjects using a multiparametric 2 × 2 design with simultaneous positron emission tomography/magnetic resonance (PET/MR) imaging. Methods 18F-FDG PET, morphometric and diffusion tensor imaging, resting state fMRI, and MR spectroscopy were acquired in 10 experienced (4.8 ± 2.3 years of regular yoga experience) yoga practitioners and 15 matched controls in rest and after a single practice (yoga practice and physical exercise, respectively). Results In rest, decreased regional glucose metabolism in the medial temporal cortex, striatum, and brainstem was observed in yoga practitioners compared to controls (p < 0.0001), with a significant inverse correlation of resting parahippocampal and brainstem metabolism with years of regular yoga practice (ρ < − 0.63, p < 0.05). A single yoga practice resulted in significant hypermetabolism in the cerebellum (p < 0.0001). None of the MR measures differed, both at rest and after intervention. Conclusions Experienced yoga practitioners show regional long-term decreases in glucose metabolism related to years of practice. To elucidate a potential causality, a prospective longitudinal study in yoga-naive individuals is warranted.
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Affiliation(s)
- June van Aalst
- Nuclear Medicine and Molecular Imaging, Imaging and Pathology, UZ/KU Leuven, Herestraat 49, 3000, Leuven, Belgium.
| | - Jenny Ceccarini
- Nuclear Medicine and Molecular Imaging, Imaging and Pathology, UZ/KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Georg Schramm
- Nuclear Medicine and Molecular Imaging, Imaging and Pathology, UZ/KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Donatienne Van Weehaeghe
- Nuclear Medicine and Molecular Imaging, Imaging and Pathology, UZ/KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Ahmadreza Rezaei
- Nuclear Medicine and Molecular Imaging, Imaging and Pathology, UZ/KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Koen Demyttenaere
- Research Group Psychiatry, Neurosciences, University Psychiatric Center KU Leuven, Leuven, Belgium.,Adult Psychiatry, UZ Leuven, Leuven, Belgium
| | - Stefan Sunaert
- Translational MRI, Imaging and Pathology, KU Leuven, Leuven, Belgium.,Radiology, UZ Leuven, Leuven, Belgium
| | - Koen Van Laere
- Nuclear Medicine and Molecular Imaging, Imaging and Pathology, UZ/KU Leuven, Herestraat 49, 3000, Leuven, Belgium.,Nuclear Medicine, UZ Leuven, Leuven, Belgium
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33
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Fishbein DH, Dariotis JK. Personalizing and Optimizing Preventive Intervention Models via a Translational Neuroscience Framework. PREVENTION SCIENCE : THE OFFICIAL JOURNAL OF THE SOCIETY FOR PREVENTION RESEARCH 2020; 20:10-20. [PMID: 29101644 DOI: 10.1007/s11121-017-0851-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A new generation of research, building upon developmental psychopathology (Luthar et al. 1997; Luthar et al. (Child Development, 71, 543-562, 2000)), provides evidence that individual differences in risk for behavioral health problems result from intrapersonal and environmental modulation of neurophysiologic and genetic substrates. This transdisciplinary model suggests that, in any given individual, the number of genetic variants implicated in high-risk behavior and the way in which they are assorted and ultimately suppressed or activated in the brain by experiential and contextual factors help to explain behavioral orientations. Implications are that behavioral health problems can be amplified or reduced based on characteristics of an individual and socio-contextual influences on those characteristics. This emerging research has extraordinary implications for the design of prevention programs that more precisely target the malleable mechanisms that underlie behavioral health problems and, hence, more effectively prevent behavioral problems and promote resilience. A detailed, theory-driven examination of all evidence-based interventions is called for to identify the active ingredients that specifically impact these underlying mechanisms. Such an approach will enhance the ability of preventive interventions to achieve effect sizes indicative of beneficial impacts for a greater number of recipients. This paper presents the significant implications of this collective knowledge base for the next generation of precision-based, prevention-focused personalized interventions.
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Affiliation(s)
- Diana H Fishbein
- Department of Human Development and Family Studies and Edna Bennett Pierce Prevention Research Center, The Pennsylvania State University, 218 Health and Human Development Building, University Park, PA, 16802, USA.
| | - Jacinda K Dariotis
- College of Education, Criminal Justice, and Human Services, Evaluation Services Center, University of Cincinnati, Cincinnati, OH, USA
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34
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Gothe NP, Khan I, Hayes J, Erlenbach E, Damoiseaux JS. Yoga Effects on Brain Health: A Systematic Review of the Current Literature. Brain Plast 2019; 5:105-122. [PMID: 31970064 PMCID: PMC6971819 DOI: 10.3233/bpl-190084] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Yoga is the most popular complementary health approach practiced by adults in the United States. It is an ancient mind and body practice with origins in Indian philosophy. Yoga combines physical postures, rhythmic breathing and meditative exercise to offer the practitioners a unique holistic mind-body experience. While the health benefits of physical exercise are well established, in recent years, the active attentional component of breathing and meditation practice has garnered interest among exercise neuroscientists. As the scientific evidence for the physical and mental health benefits of yoga continues to grow, this article aims to summarize the current knowledge of yoga practice and its documented positive effects for brain structure and function, as assessed with MRI, fMRI, and SPECT. We reviewed 11 studies examining the effects of yoga practice on the brain structures, function and cerebral blood flow. Collectively, the studies demonstrate a positive effect of yoga practice on the structure and/or function of the hippocampus, amygdala, prefrontal cortex, cingulate cortex and brain networks including the default mode network (DMN). The studies offer promising early evidence that behavioral interventions like yoga may hold promise to mitigate age-related and neurodegenerative declines as many of the regions identified are known to demonstrate significant age-related atrophy.
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Affiliation(s)
- Neha P Gothe
- Department of Kinesiology and Community Health, University of Illinois at Urbana Champaign
| | - Imadh Khan
- Department of Kinesiology and Community Health, University of Illinois at Urbana Champaign
| | - Jessica Hayes
- Department of Psychology and Institute of Gerontology, Wayne State University
| | - Emily Erlenbach
- Department of Kinesiology and Community Health, University of Illinois at Urbana Champaign
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35
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Gibson J. Mindfulness, Interoception, and the Body: A Contemporary Perspective. Front Psychol 2019; 10:2012. [PMID: 31572256 PMCID: PMC6753170 DOI: 10.3389/fpsyg.2019.02012] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/16/2019] [Indexed: 12/18/2022] Open
Abstract
Mindfulness is often used as an umbrella term to characterize a large number of practices, processes, and characteristics. Critics argue that this broad definition has led to misinformation, misunderstanding, and a general lack of methodologically rigorous research. Some of the confusion surrounding mindfulness is also believed to stem from an undifferentiated use of the term mindfulness and meditation. Mindfulness and all other forms of meditation have been shown to modulate the insula, which is the primary hub for interoception. Some have argued that interoception is foundational to mindfulness and may be the primary mechanism by which one benefits from the practice. However, much like the mindfulness literature, interoception remains broadly defined often without precision and with domain-specific meanings and implications. Research demonstrates that the insula and surrounding neural circuits are believed to be responsible for a number of other functions beyond interoception including attention, awareness, and all subjective experiences, much of which has been linked to the mindfulness literature. It has been assumed that mindfulness produces these neuroplasticity and functional effects. There is evidence that mindfulness and some of its benefits may be better described as increased interoception as a result of the neuroplasticity changes in the insula, and the development of the insula and surrounding neural circuits may cultivate dispositional mindfulness. The purposes of this article are to (1) highlight that it may be more accurate to link many of the identified benefits in the mindfulness literature to interoception and its neurological correlates and (2) propose attentional style as a means to clarify some of the confusion surrounding mindfulness, interoception, and meditation. Different meditations require different attentional styles. Attention can be analogous to a focal point with each focal point providing a unique perspective. Given that all meditative techniques modulate the insula, each meditation can provide a unique perspective from which to investigate complex interoceptive signals that may be unavailable from other meditative traditions. It may prove more useful to anchor scientific findings in the concrete body as a means to investigate those rather than a set of abstract, broadly defined meditative techniques.
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Affiliation(s)
- Jonathan Gibson
- Department of Humanities and Social Sciences, South Dakota School of Mines and Technology, Rapid City, SD, United States
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36
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Rostami K, Ghodsbin F. Effect of Yoga on the Quality of Life of Nurses Working in Intensive Care Units. Randomized Controlled Clinical Trial. INVESTIGACION Y EDUCACION EN ENFERMERIA 2019; 37:e06. [PMID: 31830404 PMCID: PMC7871494 DOI: 10.17533/udea.iee.v37n3e06] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 09/30/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES The work, herein, sought to determine the effect of yoga on the quality of life of nurses working in intensive care units (ICU). METHODS This was a randomized controlled clinical trial of a preventive intervention of three weekly sessions of yoga exercises, which included aspects of meditation, breathing control, and slow body movements. The study selected 70 nurses working in ICU and assigned them to two groups: experimental (n = 35) and control (n = 35). The World Health Organization Quality of Life brief questionnaire (WHOQoL-Bref) was used to evaluate on four moments (baseline, one, two, six months after the start of the study); this scale has 26 items with Likert-type response options ranging from 1 to 5; higher total score indicates better quality of life. RESULTS The baseline score of quality of life in the experimental group was 62.3, which increased to 70.7 on the first month and continued improving in the evaluations on the second month (72.8) and sixth month (74.1), with this change being statistically significant. Instead, the control group showed no differences in scores of the different moments of evaluation (baseline = 62, first month = 61.9, second month = 62.4, and sixth month = 60.4). In the four domains of the WHOQoL-Bref (physical, psychological, social relationships, and environment), it was also noted that the experimental group obtained better scores over time compared with the control group. CONCLUSIONS The intervention of yoga exercises was effective in improving the quality of life of nurses working in ICU.
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Bisht S, Chawla B, Tolahunase M, Mishra R, Dada R. Impact of yoga based lifestyle intervention on psychological stress and quality of life in the parents of children with retinoblastoma. Ann Neurosci 2019; 26:66-74. [PMID: 31975776 PMCID: PMC6894619 DOI: 10.5214/ans.0972.7531.260206] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/01/2019] [Accepted: 08/04/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Childhood cancers are associated with a psychological burden to the parents and hence, decline their mental and physical health and overall quality of life. PURPOSE The purpose of the present study is to investigate the impact of 12-weeks yoga based lifestyle intervention on psychological stress and quality of life in the parents of children affected with retinoblastoma. METHOD Single arm prospective clinical trial conducted from October 2015 to October 2017 at the Laboratory for Molecular Reproduction and Genetics, Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India. A pre-tested 12-weeks yoga based lifestyle intervention included asanas (physical postures), pranayama (breathing exercises), dhyana (meditation), relaxation techniques, lectures and films on yoga, interactive sessions and individualized advice was administered to the participants. RESULTS 12-weeks of yoga based lifestyle intervention programme leads to a significant improvement in psychological stress and overall quality of life in the parents of retinoblastoma patients. There was a significant improvement in all the domains (physical health, psychological health, social relationships, and environment) of WHOQOL-BREF from baseline (day 0) to 12-weeks of yoga based lifestyle intervention. Yoga based lifestyle intervention also led to a significant increase in the levels of brain derived neurotrophic factor, dehydroepiandrosterone sulphate, sirtuin 1 and decreased the cortisol and IL-6 levels. CONCLUSION Yoga based lifestyle intervention reduced the severity of psychological stress and resulted in improvement in overall quality of life and upregulation in levels of systemic biomarkers of neuroplasticity. YBLI may serve as a beneficial therapy and may also act as an effective medium for better stress management to develop better coping strategies in the parents of retinoblastoma patients.
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Affiliation(s)
- Shilpa Bisht
- Laboratory for Molecular Reproduction and Genetics,
Department of Anatomy, All India Institute of Medical Sciences, Ansari Nagar, New
Delhi, India
| | - Bhavna Chawla
- Ocular Oncology Service, Dr. Rajendra Prasad Centre for
Ophthalmic Sciences, All India Institute of Medical Sciences, Ansari Nagar, New
Delhi, India
| | - Madhuri Tolahunase
- Laboratory for Molecular Reproduction and Genetics,
Department of Anatomy, All India Institute of Medical Sciences, Ansari Nagar, New
Delhi, India
| | - Richa Mishra
- Laboratory for Molecular Reproduction and Genetics,
Department of Anatomy, All India Institute of Medical Sciences, Ansari Nagar, New
Delhi, India
| | - Rima Dada
- Laboratory for Molecular Reproduction and Genetics,
Department of Anatomy, All India Institute of Medical Sciences, Ansari Nagar, New
Delhi, India
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38
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Parmentier FBR, García-Toro M, García-Campayo J, Yañez AM, Andrés P, Gili M. Mindfulness and Symptoms of Depression and Anxiety in the General Population: The Mediating Roles of Worry, Rumination, Reappraisal and Suppression. Front Psychol 2019; 10:506. [PMID: 30906276 PMCID: PMC6418017 DOI: 10.3389/fpsyg.2019.00506] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 02/20/2019] [Indexed: 12/21/2022] Open
Abstract
The present study examined the effects of mindfulness on depression and anxiety, both direct and indirect through the mediation of four mechanisms of emotional regulation: worry, rumination, reappraisal and suppression. Path analysis was applied to data collected from an international and non-clinical sample of 1151 adults, including both meditators and non-meditators, who completed an online questionnaire battery. Our results show that mindfulness are related to lower levels of depression and anxiety both directly and indirectly. Suppression, reappraisal, worry and rumination all acted as significant mediators of the relationship between mindfulness and depression. A similar picture emerged for the relationship between mindfulness and anxiety, with the difference that suppression was not a mediator. Our data also revealed that the estimated number of hours of mindfulness meditation practice did not affect depression or anxiety directly but did reduce these indirectly by increasing mindfulness. Worry and rumination proved to be the most potent mediating variables. Altogether, our results confirm that emotional regulation plays a significant mediating role between mindfulness and symptoms of depression and anxiety in the general population and suggest that meditation focusing on reducing worry and rumination may be especially useful in reducing the risk of developing clinical depression.
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Affiliation(s)
- Fabrice B R Parmentier
- Department of Psychology and Institute of Health Sciences (iUNICS), University of the Balearic Islands, Palma, Spain.,Balearic Islands Health Research Institute (IdISBa), Palma, Spain.,School of Psychology, The University of Western Australia, Perth, WA, Australia
| | - Mauro García-Toro
- Department of Psychology and Institute of Health Sciences (iUNICS), University of the Balearic Islands, Palma, Spain.,Balearic Islands Health Research Institute (IdISBa), Palma, Spain
| | | | - Aina M Yañez
- Balearic Islands Health Research Institute (IdISBa), Palma, Spain.,Department of Nursing and Physiotherapy, University of the Balearic Islands, Palma, Spain
| | - Pilar Andrés
- Department of Psychology and Institute of Health Sciences (iUNICS), University of the Balearic Islands, Palma, Spain.,Balearic Islands Health Research Institute (IdISBa), Palma, Spain
| | - Margalida Gili
- Department of Psychology and Institute of Health Sciences (iUNICS), University of the Balearic Islands, Palma, Spain.,Balearic Islands Health Research Institute (IdISBa), Palma, Spain
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Deepeshwar S, Nagendra HR, Rana BB, Visweswaraiah NK. Evolution from four mental states to the highest state of consciousness: A neurophysiological basis of meditation as defined in yoga texts. PROGRESS IN BRAIN RESEARCH 2019; 244:31-83. [PMID: 30732843 DOI: 10.1016/bs.pbr.2018.10.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
This chapter provides a theoretical introduction to states of consciousness and reviews neuroscientific investigations of meditation. The different states of consciousness consist of four mental states, i.e., cancalata (random thinking), ekagrata (non-meditative focusing), dharna (focused meditation), and dhyana (meditation) as defined in yoga texts. Meditation is a self-regulated mental process associated with deep relaxation and increased internalized attention. Scientific investigations on meditation reported changes in electrophysiological signals and neuroimaging measures. But most outcomes of meditation studies showed inconsistent results, this may be due to heterogeneity in meditation methods and techniques evolved in the last 200 years. Traditionally, the features of meditation include the capacity to sustain a heightened awareness of thoughts, behaviors, emotions, and perceptions. Generally, meditation involves non-reactive effortless monitoring of the content of experience from moment to moment. Focused meditation practice involves awareness on a single object and open monitoring meditation is a non-directive meditation involved attention in breathing, mantra, or sound. Therefore, results of few empirical studies of advanced meditators or beginners remain tentative. This is an attempt to compile the meditation-related changes in electrophysiological and neuroimaging processes among experienced and novice practitioners.
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Affiliation(s)
- Singh Deepeshwar
- Department of Yoga and Life Sciences, Cognitive Neuroscience Lab, Swami Vivekananda Yoga University (S-VYASA), Bengaluru, India
| | - H R Nagendra
- Department of Yoga and Life Sciences, Cognitive Neuroscience Lab, Swami Vivekananda Yoga University (S-VYASA), Bengaluru, India
| | - Bal Budhi Rana
- Department of Yoga and Life Sciences, Cognitive Neuroscience Lab, Swami Vivekananda Yoga University (S-VYASA), Bengaluru, India
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40
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Magalhaes AA, Oliveira L, Pereira MG, Menezes CB. Does Meditation Alter Brain Responses to Negative Stimuli? A Systematic Review. Front Hum Neurosci 2018; 12:448. [PMID: 30483083 PMCID: PMC6243128 DOI: 10.3389/fnhum.2018.00448] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 10/18/2018] [Indexed: 01/05/2023] Open
Abstract
Background: Despite several attempts to review and explain how meditation alters the brain and facilitates emotion regulation, the extent to which meditation and emotion regulation strategies share the same neural mechanisms remains unclear. Objective: We aim to understand the influence of meditation on the neural processing of negative emotional stimuli in participants who underwent meditation interventions (naive meditators) and long-term meditators. Methodology: A systematic review was conducted using standardized search operators that included the presence of terms related to emotion, meditation and neuro-imaging techniques in PsycInfo, PubMed, Scopus, and Web of Science databases. Results: Searches identified 882 papers, of which 11 were eligible for inclusion. Results showed a predominance of greater prefrontal/frontal activity related to meditation, which might indicate the increased recruitment of cognitive/attentional control resources in naïve and long-term meditators. This increased frontal activity was also observed when participants were asked to simply react to negative stimuli. Findings from emotion-related areas were scarce but suggested increased insular activity in meditators, potentially indicating that meditation might be associated with greater bodily awareness. Conclusions: Meditation practice prompts regulatory mechanisms when participants face aversive stimuli, even without an explicit request. Moreover, some studies reported increased insular activity in meditators, consistent with the hypothesis that meditation helps foster an interoceptive awareness of bodily and emotional states.
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Affiliation(s)
- Andressa A Magalhaes
- Laboratório de Neurofisiologia do Comportamento, Instituto Biomédico, Universidade Federal Fluminense, Niterói, Brazil
| | - Leticia Oliveira
- Laboratório de Neurofisiologia do Comportamento, Instituto Biomédico, Universidade Federal Fluminense, Niterói, Brazil
| | - Mirtes G Pereira
- Laboratório de Neurofisiologia do Comportamento, Instituto Biomédico, Universidade Federal Fluminense, Niterói, Brazil
| | - Carolina B Menezes
- Departamento de Psicologia, Centro de Filosofia e Ciências Humanas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
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Gothe NP, Hayes JM, Temali C, Damoiseaux JS. Differences in Brain Structure and Function Among Yoga Practitioners and Controls. Front Integr Neurosci 2018; 12:26. [PMID: 29988397 PMCID: PMC6023989 DOI: 10.3389/fnint.2018.00026] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 05/28/2018] [Indexed: 12/17/2022] Open
Abstract
Background: Yoga is a mind-body based physical activity that has demonstrated a variety of physiological, psychological and cognitive health benefits. Although yoga practice has shown to improve cognitive performance, few studies have examined the underlying neurological correlates. Objective: The current study aimed to determine the differences in gray matter volume of the hippocampus, thalamus and caudate nucleus and brain activation during the Sternberg working memory task. Method: Participants were 13 experienced yoga practitioners (mean age = 35.8), defined as having more than 3 years of regular yoga practice, and 13 age- and sex-matched controls (mean age = 35.7). All participants completed a 6-min walk test to assess fitness, psychosocial and demographic questionnaires; and underwent magnetic resonance imaging to assess gray matter volume and brain activation. Results: There were no group differences on demographic measures of income, education and on estimated VO2max or physical activity levels. Gray matter volume differences were observed in the left hippocampus, showing greater volume in experienced yoga practitioners compared to controls (p = 0.017). The functional MRI results revealed less activation in the dorsolateral prefrontal cortex in yoga practitioners compared to controls during the encoding phase of the Sternberg task (p < 0.05). Reaction time and accuracy on the task did not differ between the groups. Conclusions: Our results suggest an association between regular long-term yoga practice and differential structure and function of specific brain regions involved in executive function, specifically working memory, which has previously shown to improve with yoga practice. Future studies need to examine intervention effects of yoga and explore its potential to maintain and improve cognitive health across the lifespan through longitudinal and intervention studies.
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Affiliation(s)
- Neha P Gothe
- Department of Kinesiology and Community Health, University of Illinois at Urbana Champaign, Champaign, IL, United States
| | - Jessica M Hayes
- Department of Psychology and Institute of Gerontology, Wayne State University, Detroit, MI, United States
| | - Cindy Temali
- Department of Psychology and Institute of Gerontology, Wayne State University, Detroit, MI, United States
| | - Jessica S Damoiseaux
- Department of Psychology and Institute of Gerontology, Wayne State University, Detroit, MI, United States
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Tao J, Liu J, Liu W, Huang J, Xue X, Chen X, Wu J, Zheng G, Chen B, Li M, Sun S, Jorgenson K, Lang C, Hu K, Chen S, Chen L, Kong J. Tai Chi Chuan and Baduanjin Increase Grey Matter Volume in Older Adults: A Brain Imaging Study. J Alzheimers Dis 2018; 60:389-400. [PMID: 28869478 DOI: 10.3233/jad-170477] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The aim of this study is to investigate and compare how 12-weeks of Tai Chi Chuan and Baduanjin exercise can modulate brain structure and memory function in older adults. Magnetic resonance imaging and memory function measurements (Wechsler Memory Scale-Chinese revised, WMS-CR) were applied at both the beginning and end of the study. Results showed that both Tai Chi Chuan and Baduanjin could significantly increase grey matter volume (GMV) in the insula, medial temporal lobe, and putamen after 12-weeks of exercise. No significant differences were observed in GMV between the Tai Chi Chuan and Baduanjin groups. We also found that compared to healthy controls, Tai Chi Chuan and Baduanjin significantly improved visual reproduction subscores on the WMS-CR. Baduanjin also improved mental control, recognition, touch, and comprehension memory subscores of the WMS-CR compared to the control group. Memory quotient and visual reproduction subscores were both associated with GMV increases in the putamen and hippocampus. Our results demonstrate the potential of Tai Chi Chuan and Baduanjin exercise for the prevention of memory deficits in older adults.
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Affiliation(s)
- Jing Tao
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China.,Fujian Key Laboratory of Rehabilitation Technology, Fuzhou, China.,Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Jiao Liu
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China.,Fujian Key Laboratory of Rehabilitation Technology, Fuzhou, China
| | - Weilin Liu
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China.,Fujian Key Laboratory of Rehabilitation Technology, Fuzhou, China
| | - Jia Huang
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China.,Fujian Key Laboratory of Rehabilitation Technology, Fuzhou, China
| | - Xiehua Xue
- Fujian Key Laboratory of Rehabilitation Technology, Fuzhou, China.,Affiliated Rehabilitation Hospital, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xiangli Chen
- Department of Rehabilitation Psychology and Special Education, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Jinsong Wu
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Guohua Zheng
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Bai Chen
- Affiliated Rehabilitation Hospital, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Ming Li
- Affiliated Rehabilitation Hospital, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Sharon Sun
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Kristen Jorgenson
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Courtney Lang
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Kun Hu
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Shanjia Chen
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Lidian Chen
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China.,Fujian Key Laboratory of Rehabilitation Technology, Fuzhou, China
| | - Jian Kong
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
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Grensman A, Acharya BD, Wändell P, Nilsson GH, Falkenberg T, Sundin Ö, Werner S. Effect of traditional yoga, mindfulness-based cognitive therapy, and cognitive behavioral therapy, on health related quality of life: a randomized controlled trial on patients on sick leave because of burnout. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:80. [PMID: 29510704 PMCID: PMC5839058 DOI: 10.1186/s12906-018-2141-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 02/22/2018] [Indexed: 01/20/2023]
Abstract
BACKGROUND To explore if health related quality of life(HRQoL) increased after traditional yoga(TY), mindfulness based cognitive therapy(MBCT), or cognitive behavioral therapy(CBT), in patients on sick leave because of burnout. METHODS Randomized controlled trial, blinded, in ninety-four primary health care patients, block randomized to TY, MBCT or CBT (active control) between September 2007 and November 2009. Patients were living in the Stockholm metropolitan area, Sweden, were aged 18-65 years and were on 50%-100% sick leave. A group treatment for 20 weeks, three hours per week, with homework four hours per week. HRQoL was measured by the SWED-QUAL questionnaire, comprising 67 items grouped into 13 subscales, each with a separate index, and scores from 0 (worse) to 100 (best). SWED-QUAL covers aspects of physical and emotional well-being, cognitive function, sleep, general health and social and sexual functioning. Statistics: Wilcoxon's rank sum and Wilcoxon's sign rank tests, Bonett-Price for medians and confidence intervals, and Cohen's D. RESULTS Twenty-six patients in the TY (21 women), and 27 patients in both the MBCT (24 women) and in the CBT (25 women), were analyzed. Ten subscales in TY and seven subscales in MBCT and CBT showed improvements, p < 0.05, in several of the main domains affected in burnout, e.g. emotional well-being, physical well-being, cognitive function and sleep. The median improvement ranged from 0 to 27 points in TY, from 4 to 25 points in CBT and from 0 to 25 points in MBCT. The effect size was mainly medium or large. Comparison of treatments showed no statistical differences, but better effect (small) of both TY and MBCT compared to CBT. When comparing the effect of TY and MBCT, both showed a better effect (small) in two subscales each. CONCLUSIONS A 20 week group treatment with TY, CBT or MBCT had equal effects on HRQoL, and particularly on main domains affected in burnout. This indicates that TY, MBCT and CBT can be used as both treatment and prevention, to improve HRQoL in patients on sick leave because of burnout, reducing the risk of future morbidity. TRIAL REGISTRATION July 22, 2012, retrospectively registered. ClinicalTrails.gov NCT01168661 . FUNDING Stockholm County Council, grant 2003-5.
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Affiliation(s)
- Astrid Grensman
- Department of Neurobiology, Care Sciences and Society, Division of Family Medicine and Primary Care, Karolinska Institutet, Alfred Nobels allé 23, 141 83 Stockholm, Sweden
| | - Bikash Dev Acharya
- Department of Neurobiology, Care Sciences and Society, Division of Family Medicine and Primary Care, Karolinska Institutet, Alfred Nobels allé 23, 141 83 Stockholm, Sweden
| | - Per Wändell
- Department of Neurobiology, Care Sciences and Society, Division of Family Medicine and Primary Care, Karolinska Institutet, Alfred Nobels allé 23, 141 83 Stockholm, Sweden
| | - Gunnar H. Nilsson
- Department of Neurobiology, Care Sciences and Society, Division of Family Medicine and Primary Care, Karolinska Institutet, Alfred Nobels allé 23, 141 83 Stockholm, Sweden
| | - Torkel Falkenberg
- Department of Neurobiology Care Sciences and Society, Division of Nursing, Research Group Integrative Care, Karolinska Institutet, Stockholm, Sweden
- Centre for Social Sustainability, Karolinska Institutet, Stockholm, Sweden
| | - Örjan Sundin
- Faculty of Human Sciences, Department of Social Sciences, Mid Sweden University, Östersund, Sweden
| | - Sigbritt Werner
- Department of Medicine, Karolinska Institutet, Stockholm, Sweden
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Andreu CI, Cosmelli D, Slagter HA, Franken IHA. Effects of a brief mindfulness-meditation intervention on neural measures of response inhibition in cigarette smokers. PLoS One 2018; 13:e0191661. [PMID: 29370256 PMCID: PMC5784955 DOI: 10.1371/journal.pone.0191661] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 01/09/2018] [Indexed: 12/11/2022] Open
Abstract
Research suggests that mindfulness-practices may aid smoking cessation. Yet, the neural mechanisms underlying the effects of mindfulness-practices on smoking are unclear. Response inhibition is a main deficit in addiction, is associated with relapse, and could therefore be a candidate target for mindfulness-based practices. The current study hence investigated the effects of a brief mindfulness-practice on response inhibition in smokers using behavioral and electroencephalography (EEG) measures. Fifty participants (33 females, mean age 20 years old) underwent a protocol of cigarette exposure to induce craving (cue-exposure) and were then randomly assigned to a group receiving mindfulness-instructions or control-instructions (for 15 minutes approximately). Immediately after this, they performed a smoking Go/NoGo task, while their brain activity was recorded. At the behavioral level, no group differences were observed. However, EEG analyses revealed a decrease in P3 amplitude during NoGo vs. Go trials in the mindfulness versus control group. The lower P3 amplitude might indicate less-effortful response inhibition after the mindfulness-practice, and suggest that enhanced response inhibition underlies observed positive effects of mindfulness on smoking behavior.
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Affiliation(s)
- Catherine I. Andreu
- Escuela de Psicología, Pontificia Universidad Católica de Chile, Santiago, Chile
- Millennium Institute for Research in Depression and Personality (MIDAP), Santiago, Chile
| | - Diego Cosmelli
- Escuela de Psicología, Pontificia Universidad Católica de Chile, Santiago, Chile
- Millennium Institute for Research in Depression and Personality (MIDAP), Santiago, Chile
- Centro Interdisciplinario de Neurociencias, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Heleen A. Slagter
- Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Brain and Cognition, University of Amsterdam, Amsterdam, the Netherlands
| | - Ingmar H. A. Franken
- Department of Psychology, Education & Child Studies, Erasmus University Rotterdam, Rotterdam, the Netherlands
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45
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Thind H, Lantini R, Balletto BL, Donahue ML, Salmoirago-Blotcher E, Bock BC, Scott-Sheldon LAJ. The effects of yoga among adults with type 2 diabetes: A systematic review and meta-analysis. Prev Med 2017; 105:116-126. [PMID: 28882745 PMCID: PMC5653446 DOI: 10.1016/j.ypmed.2017.08.017] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 08/14/2017] [Accepted: 08/16/2017] [Indexed: 12/31/2022]
Abstract
The purpose of this meta-analysis was to examine the effects of yoga for glycemic control among adults with type 2 diabetes (T2DM). Comprehensive electronic databases searches located 2559 unique studies with relevant key terms. Studies were included if they (1) evaluated a yoga intervention to promote T2DM management, (2) used a comparison group, (3) reported an objective measure of glycemic control at post-intervention, and (4) had follow-up length or post-test of at least 8weeks from baseline. Independent raters coded participant, design and methodological characteristics and intervention content. Summary effect sizes and 95% confidence intervals (CI) were calculated. Twenty-three studies with 2473 participants (mean age=53years; 43% women) met eligibility criteria. Compared with controls, yoga participants were successful in improving their HbA1c (d+=0.36, 95% CI=0.16, 0.56; k=16), FBG (d+=0.58, 95% CI=0.40, 0.76; k=20), and PPBG (d+=0.40, 95% CI=0.23, 0.56; k=14). Yoga was also associated with significant improvements in lipid profile, blood pressure, body mass index, waist/hip ratio and cortisol levels. Overall, studies satisfied an average of 41% of the methodological quality (MQ) criteria; MQ score was not associated with any outcome (Ps >0.05). Yoga improved glycemic outcomes and other risk factors for complications in adults with T2DM relative to a control condition. Additional studies with longer follow-ups are needed to determine the long-term efficacy of yoga for adults with T2DM.
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Affiliation(s)
- Herpreet Thind
- Department of Public Health, University of Massachusetts Lowell, One University Avenue, Southwick 326 A, Lowell, MA 01854, United States.
| | - Ryan Lantini
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro building, Suite 309, 164 Summit Avenue, Providence, RI 02906, United States
| | - Brittany L Balletto
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro building, Suite 309, 164 Summit Avenue, Providence, RI 02906, United States
| | - Marissa L Donahue
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro building, Suite 309, 164 Summit Avenue, Providence, RI 02906, United States
| | - Elena Salmoirago-Blotcher
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro building, Suite 309, 164 Summit Avenue, Providence, RI 02906, United States; Department of Medicine, Alpert School of Medicine, Brown University, 593 Eddy Street, Providence, RI 02903, United States
| | - Beth C Bock
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro building, Suite 309, 164 Summit Avenue, Providence, RI 02906, United States; Department of Psychiatry and Human Behavior, Alpert School of Medicine, Brown University, 700 Butler Dr., Providence, RI 02906, United States; Department of Behavioral and Social Science, Alpert School of Medicine, Brown University, 121 South Main Street, Providence, RI 02903, United States
| | - Lori A J Scott-Sheldon
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro building, Suite 309, 164 Summit Avenue, Providence, RI 02906, United States; Department of Psychiatry and Human Behavior, Alpert School of Medicine, Brown University, 700 Butler Dr., Providence, RI 02906, United States; Department of Behavioral and Social Science, Alpert School of Medicine, Brown University, 121 South Main Street, Providence, RI 02903, United States
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Fishbein DH, Dariotis JK. Personalizing and Optimizing Preventive Intervention Models via a Translational Neuroscience Framework. PREVENTION SCIENCE : THE OFFICIAL JOURNAL OF THE SOCIETY FOR PREVENTION RESEARCH 2017. [PMID: 29101644 DOI: 10.1007/s11121-017-0851-8.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new generation of research, building upon developmental psychopathology (Luthar et al. 1997; Luthar et al. (Child Development, 71, 543-562, 2000)), provides evidence that individual differences in risk for behavioral health problems result from intrapersonal and environmental modulation of neurophysiologic and genetic substrates. This transdisciplinary model suggests that, in any given individual, the number of genetic variants implicated in high-risk behavior and the way in which they are assorted and ultimately suppressed or activated in the brain by experiential and contextual factors help to explain behavioral orientations. Implications are that behavioral health problems can be amplified or reduced based on characteristics of an individual and socio-contextual influences on those characteristics. This emerging research has extraordinary implications for the design of prevention programs that more precisely target the malleable mechanisms that underlie behavioral health problems and, hence, more effectively prevent behavioral problems and promote resilience. A detailed, theory-driven examination of all evidence-based interventions is called for to identify the active ingredients that specifically impact these underlying mechanisms. Such an approach will enhance the ability of preventive interventions to achieve effect sizes indicative of beneficial impacts for a greater number of recipients. This paper presents the significant implications of this collective knowledge base for the next generation of precision-based, prevention-focused personalized interventions.
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Affiliation(s)
- Diana H Fishbein
- Department of Human Development and Family Studies and Edna Bennett Pierce Prevention Research Center, The Pennsylvania State University, 218 Health and Human Development Building, University Park, PA, 16802, USA.
| | - Jacinda K Dariotis
- College of Education, Criminal Justice, and Human Services, Evaluation Services Center, University of Cincinnati, Cincinnati, OH, USA
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Wei GX, Gong ZQ, Yang Z, Zuo XN. Mind-Body Practice Changes Fractional Amplitude of Low Frequency Fluctuations in Intrinsic Control Networks. Front Psychol 2017; 8:1049. [PMID: 28736535 PMCID: PMC5500650 DOI: 10.3389/fpsyg.2017.01049] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 06/08/2017] [Indexed: 12/13/2022] Open
Abstract
Cognitive control impairment is a typical symptom largely reported in populations with neurological disorders. Previous studies have provided evidence about the changes in cognitive control induced by mind-body training. However, the neural correlates underlying the effect of extensive mind-body practice on cognitive control remain largely unknown. Using resting-state functional magnetic resonance imaging, we characterized dynamic fluctuations in large-scale intrinsic connectivity networks associated with mind-body practice, and examined their differences between healthy controls and Tai Chi Chuan (TCC) practitioners. Compared with a control group, the TCC group revealed significantly decreased fractional Amplitude of Low Frequency Fluctuations (fALFF) in the bilateral frontoparietal network, default mode network and dorsal prefrontal-angular gyri network. Furthermore, we detected a significant association between mind-body practice experience and fALFF in the default mode network, as well as an association between cognitive control performance and fALFF of the frontoparietal network. This provides the first evidence of large-scale functional connectivity in brain networks associated with mind-body practice, shedding light on the neural network changes that accompany intensive mind-body training. It also highlights the functionally plastic role of the frontoparietal network in the context of the “immune system” of mental health recently developed in relation to flexible hub theory.
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Affiliation(s)
- Gao-Xia Wei
- Key Laboratory of Behavioral Science, Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of SciencesBeijing, China.,Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, BostonMA, United States.,Lifespan Connectomics and Behavior Team, Institute of Psychology, Chinese Academy of SciencesBeijing, China
| | - Zhu-Qing Gong
- Key Laboratory of Behavioral Science, Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of SciencesBeijing, China.,Lifespan Connectomics and Behavior Team, Institute of Psychology, Chinese Academy of SciencesBeijing, China.,University of Chinese Academy of SciencesBeijing, China
| | - Zhi Yang
- Key Laboratory of Behavioral Science, Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of SciencesBeijing, China.,University of Chinese Academy of SciencesBeijing, China
| | - Xi-Nian Zuo
- Key Laboratory of Behavioral Science, Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of SciencesBeijing, China.,Lifespan Connectomics and Behavior Team, Institute of Psychology, Chinese Academy of SciencesBeijing, China
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Kerekes N, Fielding C, Apelqvist S. Yoga in Correctional Settings: A Randomized Controlled Study. Front Psychiatry 2017; 8:204. [PMID: 29085307 PMCID: PMC5650609 DOI: 10.3389/fpsyt.2017.00204] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 09/27/2017] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The effect of yoga in the reduction of depressive symptoms, anxiety, stress, anger as well as in the increased ability of behavioral control has been shown. These effects of yoga are highly relevant for prison inmates who often have poor mental health and low impulse control. While it has been shown that yoga and meditation can be effective in improving subjective well-being, mental health, and executive functioning within prison populations, only a limited number of studies have proved this, using randomized controlled settings. METHODS A total of 152 participants from nine Swedish correctional facilities were randomly assigned to a 10-week yoga group (one class a week; N = 77) or a control group (N = 75). Before and after the intervention period, participants answered questionnaires measuring stress, aggression, affective states, sleep quality, and psychological well-being and completed a computerized test measuring attention and impulsivity. RESULTS After the intervention period, significant improvements were found on 13 of the 16 variables within the yoga group (e.g., less perceived stress, better sleep quality, an increased psychological and emotional well-being, less aggressive, and antisocial behavior) and on two within the control group. Compared to the control group, yoga class participants reported significantly improved emotional well-being and less antisocial behavior after 10 weeks of yoga. They also showed improved performance on the computerized test that measures attention and impulse control. CONCLUSION It can be concluded that the yoga practiced in Swedish correctional facilities has positive effects on inmates' well-being and on considerable risk factors associated with recidivism, such as impulsivity and antisocial behavior. Accordingly, the results show that yoga practice can play an important part in the rehabilitation of prison inmates.
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Affiliation(s)
- Nóra Kerekes
- Department of Health Sciences, University West, Trollhättan, Sweden
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Bing-Canar H, Pizzuto J, Compton RJ. Mindfulness-of-breathing exercise modulates EEG alpha activity during cognitive performance. Psychophysiology 2016; 53:1366-76. [DOI: 10.1111/psyp.12678] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 05/06/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Hanaan Bing-Canar
- Department of Psychology; Haverford College; Haverford Pennsylvania USA
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