1 1472 122 INSULAR CORTEX MEDIATES INCREASED PAIN TOLERANCE IN YOGA PRACTITIONERS. YOGA, AN INCREASINGLY POPULAR DISCIPLINE AMONG WESTERNERS, IS FREQUENTLY USED TO IMPROVE PAINFUL CONDITIONS. WE INVESTIGATED POSSIBLE NEUROANATOMICAL UNDERPINNINGS OF THE BENEFICIAL EFFECTS OF YOGA USING SENSORY TESTING AND MAGNETIC RESONANCE IMAGING TECHNIQUES. NORTH AMERICAN YOGIS TOLERATED PAIN MORE THAN TWICE AS LONG AS INDIVIDUALLY MATCHED CONTROLS AND HAD MORE GRAY MATTER (GM) IN MULTIPLE BRAIN REGIONS. ACROSS SUBJECTS, INSULAR GM UNIQUELY CORRELATED WITH PAIN TOLERANCE. INSULAR GM VOLUME IN YOGIS POSITIVELY CORRELATED WITH YOGA EXPERIENCE, SUGGESTING A CAUSAL RELATIONSHIP BETWEEN YOGA AND INSULAR SIZE. YOGIS ALSO HAD INCREASED LEFT INTRAINSULAR WHITE MATTER INTEGRITY, CONSISTENT WITH A STRENGTHENED INSULAR INTEGRATION OF NOCICEPTIVE INPUT AND PARASYMPATHETIC AUTONOMIC REGULATION. YOGIS, AS OPPOSED TO CONTROLS, USED COGNITIVE STRATEGIES INVOLVING PARASYMPATHETIC ACTIVATION AND INTEROCEPTIVE AWARENESS TO TOLERATE PAIN, WHICH COULD HAVE LED TO USE-DEPENDENT HYPERTROPHY OF INSULAR CORTEX. TOGETHER, THESE FINDINGS SUGGEST THAT REGULAR AND LONG-TERM YOGA PRACTICE IMPROVES PAIN TOLERANCE IN TYPICAL NORTH AMERICANS BY TEACHING DIFFERENT WAYS TO DEAL WITH SENSORY INPUTS AND THE POTENTIAL EMOTIONAL REACTIONS ATTACHED TO THOSE INPUTS LEADING TO A CHANGE IN INSULAR BRAIN ANATOMY AND CONNECTIVITY.	2014	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
2 1286  43 GRAY MATTER AND FUNCTIONAL CONNECTIVITY IN ANTERIOR CINGULATE CORTEX ARE ASSOCIATED WITH THE STATE OF MENTAL SILENCE DURING SAHAJA YOGA MEDITATION. SOME MEDITATION TECHNIQUES TEACH THE PRACTITIONER TO ACHIEVE THE STATE OF MENTAL SILENCE. THE AIM OF THIS STUDY WAS TO INVESTIGATE BRAIN REGIONS THAT ARE ASSOCIATED WITH THEIR VOLUME AND FUNCTIONAL CONNECTIVITY (FC) WITH THE DEPTH OF MENTAL SILENCE IN LONG-TERM PRACTITIONERS OF SAHAJA YOGA MEDITATION. TWENTY-THREE LONG-TERM PRACTITIONERS OF THIS MEDITATION WERE SCANNED USING MAGNETIC RESONANCE IMAGING. IN ORDER TO IDENTIFY THE NEURAL CORRELATES OF THE DEPTH OF MENTAL SILENCE, WE TESTED WHICH GRAY MATTER VOLUMES (GMV) WERE CORRELATED WITH THE DEPTH OF MENTAL SILENCE AND WHICH REGIONS THESE AREAS WERE FUNCTIONALLY CONNECTED TO UNDER A MEDITATION CONDITION. GMV IN MEDIAL PREFRONTAL CORTEX INCLUDING ROSTRAL ANTERIOR CINGULATE CORTEX WERE POSITIVELY CORRELATED WITH THE SUBJECTIVE PERCEPTION OF THE DEPTH OF MENTAL SILENCE INSIDE THE SCANNER. FURTHERMORE, THERE WAS SIGNIFICANTLY INCREASED FC BETWEEN THIS AREA AND BILATERAL ANTERIOR INSULA/PUTAMEN DURING A MEDITATION-STATE SPECIFICALLY, WHILE DECREASED CONNECTIVITY WITH THE RIGHT THALAMUS/PARAHIPPOCAMPAL GYRUS WAS PRESENT DURING THE MEDITATION-STATE AND THE RESTING-STATE. THE CAPACITY OF LONG-TERM MEDITATORS TO ESTABLISH A DURABLE STATE OF MENTAL SILENCE INSIDE AN MRI SCANNER WAS ASSOCIATED WITH LARGER GRAY MATTER VOLUME IN A MEDIAL FRONTAL REGION THAT IS CRUCIAL FOR TOP-DOWN COGNITIVE, EMOTION AND ATTENTION CONTROL. THIS IS FURTHERMORE CORROBORATED BY INCREASED FC OF THIS REGION DURING THE MEDITATION-STATE WITH BILATERAL ANTERIOR INSULA/PUTAMEN, WHICH ARE IMPORTANT FOR INTEROCEPTION, EMOTION, AND ATTENTION REGULATION. THE FINDINGS HENCE SUGGEST THAT THE DEPTH OF MENTAL SILENCE IS ASSOCIATED WITH MEDIAL FRONTO-INSULAR-STRIATAL NETWORKS THAT ARE CRUCIAL FOR TOP-DOWN ATTENTION AND EMOTIONAL CONTROL.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
3 1439  34 INCREASED GREY MATTER ASSOCIATED WITH LONG-TERM SAHAJA YOGA MEDITATION: A VOXEL-BASED MORPHOMETRY STUDY. OBJECTIVES: TO INVESTIGATE REGIONAL DIFFERENCES IN GREY MATTER VOLUME ASSOCIATED WITH THE PRACTICE OF SAHAJA YOGA MEDITATION. DESIGN: TWENTY THREE EXPERIENCED PRACTITIONERS OF SAHAJA YOGA MEDITATION AND TWENTY THREE NON-MEDITATORS MATCHED ON AGE, GENDER AND EDUCATION LEVEL, WERE SCANNED USING STRUCTURAL MAGNETIC RESONANCE IMAGING AND THEIR GREY MATTER VOLUME WERE COMPARED USING VOXEL-BASED MORPHOMETRY. RESULTS: GREY MATTER VOLUME WAS LARGER IN MEDITATORS RELATIVE TO NON-MEDITATORS ACROSS THE WHOLE BRAIN. IN ADDITION, GREY MATTER VOLUME WAS LARGER IN SEVERAL PREDOMINANTLY RIGHT HEMISPHERIC REGIONS: IN INSULA, VENTROMEDIAL ORBITOFRONTAL CORTEX, INFERIOR TEMPORAL AND PARIETAL CORTICES AS WELL AS IN LEFT VENTROLATERAL PREFRONTAL CORTEX AND LEFT INSULA. NO AREAS WITH LARGER GREY MATTER VOLUME WERE FOUND IN NON-MEDITATORS RELATIVE TO MEDITATORS. CONCLUSIONS: THE STUDY SHOWS THAT LONG-TERM PRACTICE OF SAHAJA YOGA MEDITATION IS ASSOCIATED WITH LARGER GREY MATTER VOLUME OVERALL, AND WITH REGIONAL ENLARGEMENT IN SEVERAL RIGHT HEMISPHERIC CORTICAL AND SUBCORTICAL BRAIN REGIONS THAT ARE ASSOCIATED WITH SUSTAINED ATTENTION, SELF-CONTROL, COMPASSION AND INTEROCEPTIVE PERCEPTION. THE INCREASED GREY MATTER VOLUME IN THESE ATTENTION AND SELF-CONTROL MEDIATING REGIONS SUGGESTS USE-DEPENDENT ENLARGEMENT WITH REGULAR PRACTICE OF THIS MEDITATION.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
4 2334  28 TWELVE-WEEK YOGA VS. AEROBIC CYCLING INITIATION IN SEDENTARY HEALTHY SUBJECTS: A BEHAVIORAL AND MULTIPARAMETRIC INTERVENTIONAL PET/MR STUDY. INTERVENTIONAL YOGA STUDIES WITH AN ACTIVE CONTROL GROUP REMAIN SCARCE AND ARE IMPORTANT TO CLARIFY THE UNDERLYING NEUROBIOLOGY. WE CONDUCTED AN INTERVENTIONAL STUDY IN HEALTHY CONTROLS USING SIMULTANEOUS POSITRON EMISSION TOMOGRAPHY/MAGNETIC RESONANCE (PET/MR) IMAGING AND PSYCHOMETRIC SCALES. THIRTY HEALTHY, FEMALE VOLUNTEERS (28.4 +/- 8.4 YEARS) PARTICIPATED AND WERE RANDOMLY ASSIGNED TO A 12-WEEK YOGA OR INDOOR CYCLING INTERVENTION. BEFORE AND AFTER THE INTERVENTION, [(18)F]FDG AND [(11)C]UCB-J PET WAS PERFORMED ON A SIMULTANEOUS GE SIGNA PET/MR WITH VOLUMETRIC IMAGING. PSYCHOMETRIC SCALES WERE EVALUATED ON AFFECT, MINDFULNESS, STRESS, WORRYING, SELF-COMPASSION, AND INTEROCEPTIVE AWARENESS. YOGA SUBJECTS SCORED HIGHER ON INTEROCEPTIVE AWARENESS COMPARED TO BASELINE (P < 0.001). COGNITIVE (P = 0.009) AND OVERALL COGNITIVE FUNCTIONING (P = 0.01) IMPROVED AFTER THE YOGA INTERVENTION COMPARED TO THE CYCLING GROUP. WE DID NOT OBSERVE SIGNIFICANT DIFFERENCES IN GLUCOSE METABOLISM, SYNAPTIC DENSITY, OR GRAY MATTER (GM) VOLUME. THE INDOOR CYCLING GROUP DID NOT SHOW CHANGES IN PSYCHOMETRIC VARIABLES, BUT SIGNIFICANT INCREASES IN RELATIVE GLUCOSE METABOLISM WERE OBSERVED IN THE PARAHIPPOCAMPAL/FUSIFORM GYRUS AND CEREBELLUM (P < 0.001). IN CONCLUSION, 12 WEEKS OF YOGA PRACTICE HAS SIGNIFICANT EFFECTS ON INTEROCEPTIVE AWARENESS AND PERCEIVED COGNITIVE FUNCTION IN STARTERS. LONGER INTERVENTIONS AND/OR HIGHER FREQUENCY OF YOGA PRACTICE MAY BE NEEDED TO DETECT CEREBRAL METABOLIC AND/OR MORPHOLOGIC EFFECTS ON THE MACROSCOPIC LEVEL.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
5 1772  29 POTENTIAL SELF-REGULATORY MECHANISMS OF YOGA FOR PSYCHOLOGICAL HEALTH. RESEARCH SUGGESTING THE BENEFICIAL EFFECTS OF YOGA ON MYRIAD ASPECTS OF PSYCHOLOGICAL HEALTH HAS PROLIFERATED IN RECENT YEARS, YET THERE IS CURRENTLY NO OVERARCHING FRAMEWORK BY WHICH TO UNDERSTAND YOGA'S POTENTIAL BENEFICIAL EFFECTS. HERE WE PROVIDE A THEORETICAL FRAMEWORK AND SYSTEMS-BASED NETWORK MODEL OF YOGA THAT FOCUSES ON INTEGRATION OF TOP-DOWN AND BOTTOM-UP FORMS OF SELF-REGULATION. WE BEGIN BY CONTEXTUALIZING YOGA IN HISTORICAL AND CONTEMPORARY SETTINGS, AND THEN DETAIL HOW SPECIFIC COMPONENTS OF YOGA PRACTICE MAY AFFECT COGNITIVE, EMOTIONAL, BEHAVIORAL, AND AUTONOMIC OUTPUT UNDER STRESS THROUGH AN EMPHASIS ON INTEROCEPTION AND BOTTOM-UP INPUT, RESULTING IN PHYSICAL AND PSYCHOLOGICAL HEALTH. THE MODEL DESCRIBES YOGA PRACTICE AS A COMPREHENSIVE SKILLSET OF SYNERGISTIC PROCESS TOOLS THAT FACILITATE BIDIRECTIONAL FEEDBACK AND INTEGRATION BETWEEN HIGH- AND LOW-LEVEL BRAIN NETWORKS, AND AFFERENT AND RE-AFFERENT INPUT FROM INTEROCEPTIVE PROCESSES (SOMATOSENSORY, VISCEROSENSORY, CHEMOSENSORY). FROM A PREDICTIVE CODING PERSPECTIVE WE PROPOSE A SHIFT TO PERCEPTUAL INFERENCE FOR STRESS MODULATION AND OPTIMAL SELF-REGULATION. WE DESCRIBE HOW THE PROCESSES THAT SUB-SERVE SELF-REGULATION BECOME MORE AUTOMATIZED AND EFFICIENT OVER TIME AND PRACTICE, REQUIRING LESS EFFORT TO INITIATE WHEN NECESSARY AND TERMINATE MORE RAPIDLY WHEN NO LONGER NEEDED. TO SUPPORT OUR PROPOSED MODEL, WE PRESENT THE AVAILABLE EVIDENCE FOR YOGA AFFECTING SELF-REGULATORY PATHWAYS, INTEGRATING EXISTING CONSTRUCTS FROM BEHAVIOR THEORY AND COGNITIVE NEUROSCIENCE WITH EMERGING YOGA AND MEDITATION RESEARCH. THIS PAPER IS INTENDED TO GUIDE FUTURE BASIC AND CLINICAL RESEARCH, SPECIFICALLY TARGETING AREAS OF DEVELOPMENT IN THE TREATMENT OF STRESS-MEDIATED PSYCHOLOGICAL DISORDERS.	2014	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
6 1641  23 MONITORING THE NEURAL ACTIVITY OF THE STATE OF MENTAL SILENCE WHILE PRACTICING SAHAJA YOGA MEDITATION. OBJECTIVE: TO IDENTIFY THE NEURAL CORRELATES OF THE STATE OF MENTAL SILENCE AS EXPERIENCED THROUGH SAHAJA YOGA MEDITATION. DESIGN: NINETEEN EXPERIENCED MEDITATORS UNDERWENT FUNCTIONAL MAGNETIC RESONANCE IMAGING DURING THREE SHORT CONSECUTIVE MEDITATION PERIODS, CONTRASTED WITH A CONTROL RELAXATION CONDITION. RESULTS: RELATIVE TO BASELINE, AT THE BEGINNING OF THE MEDITATION SESSIONS THERE WAS A SIGNIFICANT INCREASE OF ACTIVATION IN BILATERAL INFERIOR FRONTAL AND TEMPORAL REGIONS. ACTIVATION BECAME PROGRESSIVELY MORE REDUCED WITH DEEPER MEDITATION STAGES AND IN THE LAST MEDITATION SESSION IT BECAME LOCALIZED TO THE RIGHT INFERIOR FRONTAL CORTEX/ RIGHT INSULA AND RIGHT MIDDLE/SUPERIOR TEMPORAL CORTEX. FURTHERMORE, RIGHT INFERIOR FRONTAL ACTIVATION WAS DIRECTLY ASSOCIATED WITH THE SUBJECTIVE DEPTH OF THE MENTAL SILENCE EXPERIENCE. CONCLUSIONS: MEDITATORS APPEAR TO PASS THROUGH AN INITIAL INTENSE NEURAL SELF-CONTROL PROCESS NECESSARY TO SILENCE THEIR MIND. AFTER THIS THEY EXPERIENCE RELATIVELY REDUCED BRAIN ACTIVATION CONCOMITANT WITH THE DEEPENING OF THE STATE OF MENTAL SILENCE OVER RIGHT INFERIOR FRONTAL CORTEX, PROBABLY REFLECTING AN EFFORTLESS PROCESS OF ATTENTIONAL CONTEMPLATION ASSOCIATED WITH THIS STATE.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
7 2371  32 WHAT HAS NEUROIMAGING TAUGHT US ON THE NEUROBIOLOGY OF YOGA? A REVIEW. 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.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
8 2720  35 YOGA MEDITATION PRACTITIONERS EXHIBIT GREATER GRAY MATTER VOLUME AND FEWER REPORTED COGNITIVE FAILURES: RESULTS OF A PRELIMINARY VOXEL-BASED MORPHOMETRIC ANALYSIS. HATHA YOGA TECHNIQUES, INCLUDING PHYSICAL POSTURES (ASANAS), BREATHING EXERCISES (PRANAYAMA), AND MEDITATION, INVOLVE THE PRACTICE OF MINDFULNESS. IN TURN, YOGA MEDITATION PRACTICES MAY INDUCE THE STATE OF MINDFULNESS, WHICH, WHEN EVOKED RECURRENTLY THROUGH REPEATED PRACTICE, MAY ACCRUE INTO TRAIT OR DISPOSITIONAL MINDFULNESS. PUTATIVELY, THESE CHANGES MAY BE MEDIATED BY EXPERIENCE-DEPENDENT NEUROPLASTIC CHANGES. THOUGH PRIOR STUDIES HAVE IDENTIFIED DIFFERENCES IN GRAY MATTER VOLUME (GMV) BETWEEN LONG-TERM MINDFULNESS PRACTITIONERS AND CONTROLS, NO STUDIES TO DATE HAVE REPORTED ON WHETHER YOGA MEDITATION IS ASSOCIATED WITH GMV DIFFERENCES. THE PRESENT STUDY INVESTIGATED GMV DIFFERENCES BETWEEN YOGA MEDITATION PRACTITIONERS (YMP) AND A MATCHED CONTROL GROUP (CG). THE YMP GROUP EXHIBITED GREATER GM VOLUME IN FRONTAL, LIMBIC, TEMPORAL, OCCIPITAL, AND CEREBELLAR REGIONS; WHEREAS THE CG HAD NO GREATER REGIONAL GREATER GMV. IN ADDITION, THE YMP GROUP REPORTED SIGNIFICANTLY FEWER COGNITIVE FAILURES ON THE COGNITIVE FAILURES QUESTIONNAIRE (CFQ), THE MAGNITUDE OF WHICH WAS POSITIVELY CORRELATED WITH GMV IN NUMEROUS REGIONS IDENTIFIED IN THE PRIMARY ANALYSIS. LASTLY, GMV WAS POSITIVELY CORRELATED WITH THE DURATION OF YOGA PRACTICE. RESULTS FROM THIS PRELIMINARY STUDY SUGGEST THAT HATHA YOGA PRACTICE MAY BE ASSOCIATED WITH THE PROMOTION OF NEUROPLASTIC CHANGES IN EXECUTIVE BRAIN SYSTEMS, WHICH MAY CONFER THERAPEUTIC BENEFITS THAT ACCRUE WITH REPEATED PRACTICE.	2012	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
9 1897  25 RESTING STATE FUNCTIONAL CONNECTIVITY ASSOCIATED WITH SAHAJA YOGA MEDITATION. NEUROSCIENCE RESEARCH HAS SHOWN THAT MEDITATION PRACTICES HAVE EFFECTS ON BRAIN STRUCTURE AND FUNCTION. HOWEVER, FEW STUDIES HAVE COMBINED INFORMATION ON THE EFFECTS ON STRUCTURE AND FUNCTION IN THE SAME SAMPLE. LONG-TERM DAILY MEDITATION PRACTICE PRODUCES REPEATED ACTIVITY OF SPECIFIC BRAIN NETWORKS OVER YEARS OF PRACTICE, WHICH MAY INDUCE LASTING STRUCTURAL AND FUNCTIONAL CONNECTIVITY (FC) CHANGES WITHIN RELEVANT CIRCUITS. THE AIM OF OUR STUDY WAS THEREFORE TO IDENTIFY DIFFERENCES IN FC DURING THE RESTING STATE BETWEEN 23 SAHAJA YOGA MEDITATION EXPERTS AND 23 HEALTHY PARTICIPANTS WITHOUT MEDITATION EXPERIENCE. SEED-BASED FC ANALYSIS WAS PERFORMED DEPARTING FROM VOXELS THAT HAD SHOWN STRUCTURAL DIFFERENCES BETWEEN THESE SAME PARTICIPANTS. THE CONTRAST OF CONNECTIVITY MAPS YIELDED THAT MEDITATORS SHOWED INCREASED FC BETWEEN THE LEFT VENTROLATERAL PREFRONTAL CORTEX AND THE RIGHT DORSOLATERAL PREFRONTAL CORTEX BUT REDUCED FC BETWEEN THE LEFT INSULA AND THE BILATERAL MID-CINGULATE AS WELL AS BETWEEN THE RIGHT ANGULAR GYRUS AND THE BILATERAL PRECUNEUS/CUNEUS CORTICES. IT THUS APPEARS THAT LONG-TERM MEDITATION PRACTICE INCREASES DIRECT FC BETWEEN VENTRAL AND DORSAL FRONTAL REGIONS WITHIN BRAIN NETWORKS RELATED TO ATTENTION AND COGNITIVE CONTROL AND DECREASES FC BETWEEN REGIONS OF THESE NETWORKS AND AREAS OF THE DEFAULT MODE NETWORK.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
10 1670  37 NEUROPROTECTIVE EFFECTS OF YOGA PRACTICE: AGE-, EXPERIENCE-, AND FREQUENCY-DEPENDENT PLASTICITY. YOGA COMBINES POSTURES, BREATHING, AND MEDITATION. DESPITE REPORTED HEALTH BENEFITS, YOGA'S EFFECTS ON THE BRAIN HAVE RECEIVED LITTLE STUDY. WE USED MAGNETIC RESONANCE IMAGING TO COMPARE AGE-RELATED GRAY MATTER (GM) DECLINE IN YOGIS AND CONTROLS. WE ALSO EXAMINED THE EFFECT OF INCREASING YOGA EXPERIENCE AND WEEKLY PRACTICE ON GM VOLUME AND ASSESSED WHICH ASPECTS OF WEEKLY PRACTICE CONTRIBUTED MOST TO BRAIN SIZE. CONTROLS DISPLAYED THE WELL DOCUMENTED AGE-RELATED GLOBAL BRAIN GM DECLINE WHILE YOGIS DID NOT, SUGGESTING THAT YOGA CONTRIBUTES TO PROTECT THE BRAIN AGAINST AGE-RELATED DECLINE. YEARS OF YOGA EXPERIENCE CORRELATED MOSTLY WITH GM VOLUME DIFFERENCES IN THE LEFT HEMISPHERE (INSULA, FRONTAL OPERCULUM, AND ORBITOFRONTAL CORTEX) SUGGESTING THAT YOGA TUNES THE BRAIN TOWARD A PARASYMPATICALLY DRIVEN MODE AND POSITIVE STATES. THE NUMBER OF HOURS OF WEEKLY PRACTICE CORRELATED WITH GM VOLUME IN THE PRIMARY SOMATOSENSORY CORTEX/SUPERIOR PARIETAL LOBULE (S1/SPL), PRECUNEUS/POSTERIOR CINGULATE CORTEX (PCC), HIPPOCAMPUS, AND PRIMARY VISUAL CORTEX (V1). COMMONALITY ANALYSES INDICATED THAT THE COMBINATION OF POSTURES AND MEDITATION CONTRIBUTED THE MOST TO THE SIZE OF THE HIPPOCAMPUS, PRECUNEUS/PCC, AND S1/SPL WHILE THE COMBINATION OF MEDITATION AND BREATHING EXERCISES CONTRIBUTED THE MOST TO V1 VOLUME. YOGA'S POTENTIAL NEUROPROTECTIVE EFFECTS MAY PROVIDE A NEURAL BASIS FOR SOME OF ITS BENEFICIAL EFFECTS.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
11 1545  38 LARGER WHOLE BRAIN GREY MATTER ASSOCIATED WITH LONG-TERM SAHAJA YOGA MEDITATION: A DETAILED AREA BY AREA COMPARISON. OBJECTIVES: OUR PREVIOUS STUDY SHOWED THAT LONG-TERM PRACTITIONERS OF SAHAJA YOGA MEDITATION (SYM) HAD AROUND 7% LARGER GREY MATTER VOLUME (GMV) IN THE WHOLE BRAIN COMPARED WITH HEALTHY CONTROLS; HOWEVER, WHEN TESTING INDIVIDUAL REGIONS, ONLY 5 SMALL BRAIN AREAS WERE STATISTICALLY DIFFERENT BETWEEN GROUPS. UNDER THE HYPOTHESIS THAT THOSE RESULTS WERE STATISTICALLY CONSERVATIVE, WITH THE SAME DATASET, WE INVESTIGATED IN MORE DETAIL THE REGIONAL DIFFERENCES IN GMV ASSOCIATED WITH THE PRACTICE OF SYM, WITH A DIFFERENT STATISTICAL APPROACH. DESIGN: TWENTY-THREE EXPERIENCED PRACTITIONERS OF SYM AND 23 HEALTHY NON-MEDITATORS MATCHED ON AGE, SEX AND EDUCATION LEVEL, WERE SCANNED USING STRUCTURAL MAGNETIC RESONANCE IMAGING (MRI). THEIR GMV WERE EXTRACTED AND COMPARED USING VOXEL-BASED MORPHOMETRY (VBM). USING A NOVEL AD-HOC GENERAL LINEAR MODEL, STATISTICAL COMPARISONS WERE MADE TO OBSERVE IF THE GMV DIFFERENCES BETWEEN MEDITATORS AND CONTROLS WERE STATISTICALLY SIGNIFICANT. RESULTS: IN THE 16 LOBE AREA SUBDIVISIONS, GMV WAS STATISTICALLY SIGNIFICANTLY DIFFERENT IN 4 OUT OF 16 AREAS: IN RIGHT HEMISPHERIC TEMPORAL AND FRONTAL LOBES, LEFT FRONTAL LOBE AND BRAINSTEM. IN THE 116 AAL AREA SUBDIVISIONS, GMV DIFFERENCE WAS STATISTICALLY SIGNIFICANT IN 11 AREAS. THE GMV DIFFERENCES WERE STATISTICALLY MORE SIGNIFICANT IN RIGHT HEMISPHERIC BRAIN AREAS. CONCLUSIONS: THE STUDY SHOWS THAT LONG-TERM PRACTICE OF SYM IS ASSOCIATED WITH LARGER GMV OVERALL, AND WITH SIGNIFICANT DIFFERENCES MAINLY IN TEMPORAL AND FRONTAL AREAS OF THE RIGHT HEMISPHERE AND THE BRAINSTEM. THESE NEUROPLASTIC CHANGES MAY REFLECT EMOTIONAL AND ATTENTIONAL CONTROL MECHANISMS DEVELOPED WITH SYM. ON THE OTHER HAND, OUR STATISTICAL AD-HOC METHOD SHOWS THAT THERE WERE MORE BRAIN AREAS WITH STATISTICAL SIGNIFICANCE COMPARED TO THE TRADITIONAL METHODOLOGY WHICH WE THINK IS SUSCEPTIBLE TO CONSERVATIVE TYPE II ERRORS.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
12 1972  30 SHORT-TERM SAHAJA YOGA MEDITATION TRAINING MODULATES BRAIN STRUCTURE AND SPONTANEOUS ACTIVITY IN THE EXECUTIVE CONTROL NETWORK. INTRODUCTION: WHILE CROSS-SECTIONAL STUDIES HAVE SHOWN NEURAL CHANGES IN LONG-TERM MEDITATORS, THEY MIGHT BE CONFOUNDED BY SELF-SELECTION AND POTENTIAL BASELINE DIFFERENCES BETWEEN MEDITATORS AND NON MEDITATORS. PROSPECTIVE LONGITUDINAL STUDIES OF THE EFFECTS OF MEDITATION IN NAIVE SUBJECTS ARE MORE CONCLUSIVE WITH RESPECT TO CAUSAL INFERENCES, BUT RELATED EVIDENCE IS SO FAR LIMITED. METHODS: HERE, WE ASSESSED THE EFFECTS OF A 4-WEEK SAHAJA YOGA MEDITATION TRAINING ON GRAY MATTER DENSITY AND SPONTANEOUS RESTING-STATE BRAIN ACTIVITY IN A GROUP OF 12 MEDITATION-NAIVE HEALTHY ADULTS. RESULTS: COMPARED WITH 30 CONTROL SUBJECTS, THE PARTICIPANTS TO MEDITATION TRAINING SHOWED INCREASED GRAY MATTER DENSITY AND CHANGES IN THE COHERENCE OF INTRINSIC BRAIN ACTIVITY IN TWO ADJACENT REGIONS OF THE RIGHT INFERIOR FRONTAL GYRUS ENCOMPASSING THE ANTERIOR COMPONENT OF THE EXECUTIVE CONTROL NETWORK. BOTH THESE MEASURES CORRELATED WITH SELF-REPORTED WELL-BEING SCORES IN THE MEDITATION GROUP. CONCLUSIONS: THE SIGNIFICANT IMPACT OF A BRIEF MEDITATION TRAINING ON BRAIN REGIONS ASSOCIATED WITH ATTENTION, SELF-CONTROL, AND SELF-AWARENESS MAY REFLECT THE ENGAGEMENT OF COGNITIVE CONTROL SKILLS IN SEARCHING FOR A STATE OF MENTAL SILENCE, A DISTINCTIVE FEATURE OF SAHAJA YOGA MEDITATION. THE MANIFOLD IMPLICATIONS OF THESE FINDINGS INVOLVE BOTH MANAGERIAL AND REHABILITATIVE SETTINGS CONCERNED WITH WELL-BEING AND EMOTIONAL STATE IN NORMAL AND PATHOLOGICAL CONDITIONS.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
13 2071  27 THE EFFECT OF A SINGLE YOGA CLASS ON INTEROCEPTIVE ACCURACY IN PATIENTS AFFECTED BY ANOREXIA NERVOSA AND IN HEALTHY CONTROLS: A PILOT STUDY. PURPOSE: TO EVALUATE INTEROCEPTIVE ACCURACY (IAC) BEFORE AND AFTER A SINGLE YOGA CLASS IN A POPULATION OF PATIENTS WITH ANOREXIA NERVOSA (AN) AND IN A POPULATION OF HEALTHY CONTROLS (HC). METHODS: FIFTEEN PATIENTS WITH AN AND TWENTY HC WERE INCLUDED IN THE STUDY. ALL INDIVIDUALS PARTICIPATED IN A SINGLE YOGA CLASS. BEFORE (T0) AND AFTER (T1) THE YOGA CLASS, THEY UNDERWENT THE HEARTBEAT DETECTION TASK FOR THE EVALUATION OF IAC. AT T0, ALL PARTICIPANTS ALSO UNDERWENT A PSYCHOLOGICAL ASSESSMENT, INCLUDING EVALUATION OF DEPRESSION, ANXIETY, BODY AWARENESS, ALEXITHYMIA, SELF-OBJECTIFICATION AND EATING DISORDERS PSYCHOPATHOLOGY. RESULTS: PATIENTS WITH AN HAD LOWER IAC THAN HC AT T0. A SIGNIFICANT IMPROVEMENT OF IAC AT T1 WAS FOUND IN THE HC GROUP BUT NOT IN THE GROUP OF PATIENTS WITH AN. CONCLUSION: WE INFER THAT OUR FINDINGS MIGHT BE LINKED TO THE FACT THAT PATIENTS WITH AN, DIFFERENTLY FROM HC, DID NOT PROPERLY ATTEND TO THEIR BODIES, DESPITE THE YOGA CLASS. THIS HYPOTHESIS IS CONSISTENT WITH PREVIOUS STUDIES SHOWING THAT PATIENTS WITH AN HAVE DECREASED IAC DURING SELF-FOCUSED BEHAVIOR BECAUSE OF BODY-RELATED AVOIDANCE. MOREOVER, WE SURMISE THAT HC MIGHT BE KEENER TO IMPROVE THEIR PERCEPTION OF INTERNAL BODY SIGNALS EVEN AFTER A SINGLE YOGA CLASS BECAUSE THEIR EMOTIONAL AWARENESS SYSTEM IS NOT IMPAIRED. PATIENTS WITH AN, ON THE CONTRARY, MAY HAVE AN INTRINSIC IMPAIRMENT OF THEIR EMOTIONAL AWARENESS, MAKING IT HARDER FOR THEM TO MODULATE THEIR IAC. LEVEL OF EVIDENCE: LEVEL III, EVIDENCE OBTAINED FROM WELL-DESIGNED COHORT OR CASE-CONTROL ANALYTICAL STUDIES.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
14 1555  32 LONG-TERM ASHTANGA YOGA PRACTICE DECREASES MEDIAL TEMPORAL AND BRAINSTEM GLUCOSE METABOLISM IN RELATION TO YEARS OF EXPERIENCE. 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 X 2 DESIGN WITH SIMULTANEOUS POSITRON EMISSION TOMOGRAPHY/MAGNETIC RESONANCE (PET/MR) IMAGING. METHODS: (18)F-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 (RHO < - 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.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
15  335  32 APPLYING THE S-ART FRAMEWORK TO YOGA: EXPLORING THE SELF-REGULATORY ACTION OF YOGA PRACTICE IN TWO CULTURALLY DIVERSE SAMPLES. MINDFULNESS PRACTICES FORM THE CORE OF NUMEROUS THERAPEUTIC PROGRAMS AND INTERVENTIONS FOR STRESS REDUCTION AND THE TREATMENT OF DIFFERENT HEALTH CONDITIONS RELATED TO STRESS AND LIFE HABITS. WAYS AND MEANS TO REGULATE ONESELF EFFECTIVELY ALSO FORM THE FOUNDATION OF THE PATH OF YOGA IN THE ACCOMPLISHMENT OF HOLISTIC HEALTH AND WELL-BEING. THE SELF-AWARENESS, SELF-REGULATION, AND SELF-TRANSCENDENCE (S-ART) MODEL CAN BE CONSIDERED AS AN OVERARCHING NEUROBIOLOGICAL FRAMEWORK TO EXPLAIN THE SELF-REGULATORY MECHANISMS OF WELL-BEING PRESENT IN MINDFULNESS-BASED PRACTICES. THE CURRENT STUDY, BY CONNECTING AND APPLYING THE S-ART FRAMEWORK TO THE SELF-REGULATORY MECHANISMS IN YOGA AND GENERATING RELATED HYPOTHESES, PROVIDES A THEORY-LED EXPLANATION OF THE ACTION OF YOGA PRACTICES, WHICH IS SPARSE IN THE LITERATURE. TESTING THE S-ART MODEL IN YOGA IN TWO CULTURALLY DIVERSE SAMPLES, ASSESSING THE MODEL-MAPPED PSYCHOLOGICAL MECHANISMS OF ACTION, AND EXPLORING THE INFLUENCE OF PERSEVERANCE IN YOGA PRACTICE ARE THE ORIGINAL CONTRIBUTIONS OF THIS STUDY. THE STUDY SAMPLE COMPRISED 362 YOGA PRACTITIONERS AND NON-PRACTITIONERS (197 INDIAN AND 165 SPANISH), WHO COMPLETED FOUR TESTS OF PSYCHOLOGICAL VARIABLES INDICATIVE OF THE AFOREMENTIONED THREE S-ART ABILITIES. THESE TESTS WERE MULTIDIMENSIONAL ASSESSMENT OF INTEROCEPTIVE AWARENESS (MAIA), EXPERIENCES QUESTIONNAIRE-DECENTERING (EQ-D) SUBSCALE, DIFFICULTIES IN EMOTION REGULATION SCALE (DERS), AND RELATIONAL COMPASSION SCALE (RCS). THE RESULTS INDICATED SIGNIFICANTLY BETTER SELF-AWARENESS AND SELF-REGULATORY ABILITIES IN YOGA PRACTITIONERS (INDIAN AND SPANISH IN A COMBINATION) THAN NON-PRACTITIONERS, REFLECTED IN HIGHER LEVELS OF INTEROCEPTIVE AWARENESS AND DECENTERING ABILITIES. MOREOVER, PERSEVERANCE IN YOGA PRACTICE ACTED AS A SIGNIFICANT PREDICTOR OF SELF-AWARENESS AND SELF-REGULATION IN PRACTITIONERS. AN ANALYSIS OF EACH CULTURAL SAMPLE REVEALED SOME DIFFERENCES. YOGA PRACTICE AND PERSEVERANCE IN IT ACTED AS A SIGNIFICANT PREDICTOR OF INTEROCEPTIVE AWARENESS AND DECENTERING IN INDIAN PRACTITIONERS HAVING MORE THAN 1 YEAR OF SUSTAINED YOGA PRACTICE, BUT FOR THE SPANISH PARTICIPANTS, PHYSICAL EXERCISE AND FREQUENCY OF YOGA PRACTICE ACTED AS BETTER PREDICTORS OF INTEROCEPTIVE AWARENESS AND DECENTERING IN COMPARISON TO YOGA PRACTICE AND PERSEVERANCE IN IT. THE OBTAINED RESULTS SUGGESTED THAT THE S-ART MODEL PROVIDED PRELIMINARY BUT PROMISING EVIDENCE FOR THE SELF-REGULATORY MECHANISMS OF ACTION IN YOGA PRACTICE WITHIN A CULTURALLY DIVERSE SAMPLE OF YOGA PRACTITIONERS. THIS STUDY ALSO WIDENS THE SCOPE OF GENERATING FURTHER HYPOTHESES USING THE S-ART THEORETICAL FRAMEWORK FOR TESTING THE SELF-REGULATORY MECHANISMS OF ACTION IN YOGA PRACTICE.	2021	

16  455  28 CHANGES IN NEURAL CONNECTIVITY AND MEMORY FOLLOWING A YOGA INTERVENTION FOR OLDER ADULTS: A PILOT STUDY. BACKGROUND: NO STUDY HAS EXPLORED THE EFFECT OF YOGA ON COGNITIVE DECLINE AND RESTING-STATE FUNCTIONAL CONNECTIVITY. OBJECTIVES: THIS STUDY EXPLORED THE RELATIONSHIP BETWEEN PERFORMANCE ON MEMORY TESTS AND RESTING-STATE FUNCTIONAL CONNECTIVITY BEFORE AND AFTER A YOGA INTERVENTION VERSUS ACTIVE CONTROL FOR SUBJECTS WITH MILD COGNITIVE IMPAIRMENT (MCI). METHODS: PARTICIPANTS ( >/= 55 Y) WITH MCI WERE RANDOMIZED TO RECEIVE A YOGA INTERVENTION OR ACTIVE "GOLD-STANDARD" CONTROL (I.E., MEMORY ENHANCEMENT TRAINING (MET)) FOR 12 WEEKS. RESTING-STATE FUNCTIONAL MAGNETIC RESONANCE IMAGING WAS USED TO MAP CORRELATIONS BETWEEN BRAIN NETWORKS AND MEMORY PERFORMANCE CHANGES OVER TIME. DEFAULT MODE NETWORKS (DMN), LANGUAGE AND SUPERIOR PARIETAL NETWORKS WERE CHOSEN AS NETWORKS OF INTEREST TO ANALYZE THE ASSOCIATION WITH CHANGES IN VERBAL AND VISUOSPATIAL MEMORY PERFORMANCE. RESULTS: FOURTEEN YOGA AND 11 MET PARTICIPANTS COMPLETED THE STUDY. THE YOGA GROUP DEMONSTRATED A STATISTICALLY SIGNIFICANT IMPROVEMENT IN DEPRESSION AND VISUOSPATIAL MEMORY. WE OBSERVED IMPROVED VERBAL MEMORY PERFORMANCE CORRELATED WITH INCREASED CONNECTIVITY BETWEEN THE DMN AND FRONTAL MEDIAL CORTEX, PREGENUAL ANTERIOR CINGULATE CORTEX, RIGHT MIDDLE FRONTAL CORTEX, POSTERIOR CINGULATE CORTEX, AND LEFT LATERAL OCCIPITAL CORTEX. IMPROVED VERBAL MEMORY PERFORMANCE POSITIVELY CORRELATED WITH INCREASED CONNECTIVITY BETWEEN THE LANGUAGE PROCESSING NETWORK AND THE LEFT INFERIOR FRONTAL GYRUS. IMPROVED VISUOSPATIAL MEMORY PERFORMANCE CORRELATED INVERSELY WITH CONNECTIVITY BETWEEN THE SUPERIOR PARIETAL NETWORK AND THE MEDIAL PARIETAL CORTEX. CONCLUSION: YOGA MAY BE AS EFFECTIVE AS MET IN IMPROVING FUNCTIONAL CONNECTIVITY IN RELATION TO VERBAL MEMORY PERFORMANCE. THESE FINDINGS SHOULD BE CONFIRMED IN LARGER PROSPECTIVE STUDIES.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
17  957  24 EFFECTS OF A SINGLE YOGA SESSION ON CARDIAC INTEROCEPTIVE ACCURACY AND EMOTIONAL EXPERIENCE. BACKGROUND: THERE IS AN INCREASING BODY OF RESEARCH SUPPORTING THE IDEA THAT CARDIAC INTEROCEPTIVE ACCURACY (IAC) CAN BE IMPROVED BY TRAINING. FINDINGS CONCERNING THE EFFECTS OF A SINGLE YOGA SESSION ON IAC AND THE RELATED CONSTRUCT EMOTIONAL EXPERIENCE ARE SPARSE. THE AIM OF THIS STUDY WAS TO EXAMINE IF A SINGLE YOGA SESSION INCREASES IAC AND IMPROVES EMOTIONAL EXPERIENCE. METHODS: 137 STUDENTS WERE RANDOMLY ASSIGNED TO A 20-MIN YOGA SESSION (N = 47), AN ENDURANCE SESSION (N = 46), OR AN INACTIVE CONTROL CONDITION (N = 44). IAC AND EMOTIONAL EXPERIENCE WERE ASSESSED BEFORE AND AFTER THE SESSIONS. RESULTS: THERE WERE NO SIGNIFICANT CHANGES IN IAC, OR POSITIVE AND NEGATIVE AFFECT. IAC AT BASELINE AND THE CHANGE IN POSITIVE EFFECT WERE FOUND AS PREDICTORS FOR IAC AFTER THE YOGA SESSION. CONCLUSION: A 20-MIN YOGA SESSION SEEMS TO BE NOT APPLICABLE TO IMPROVE IAC AND EMOTIONAL EXPERIENCE. FUTURE STUDIES SHOULD INVESTIGATE LONG-TERM INTERVENTIONS AND DIVERSE HEALTHY AND CLINICAL POPULATIONS.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
18 1669  23 NEUROPHYSIOLOGICAL AND NEUROCOGNITIVE MECHANISMS UNDERLYING THE EFFECTS OF YOGA-BASED PRACTICES: TOWARDS A COMPREHENSIVE THEORETICAL FRAMEWORK. DURING RECENT DECADES NUMEROUS YOGA-BASED PRACTICES (YBP) HAVE EMERGED IN THE WEST, WITH THEIR AIMS RANGING FROM FITNESS GAINS TO THERAPEUTIC BENEFITS AND SPIRITUAL DEVELOPMENT. YOGA IS ALSO BEGINNING TO SPARK GROWING INTEREST WITHIN THE SCIENTIFIC COMMUNITY, AND YOGA-BASED INTERVENTIONS HAVE BEEN ASSOCIATED WITH MEASUREABLE CHANGES IN PHYSIOLOGICAL PARAMETERS, PERCEIVED EMOTIONAL STATES, AND COGNITIVE FUNCTIONING. YBP TYPICALLY INVOLVE A COMBINATION OF POSTURES OR MOVEMENT SEQUENCES, CONSCIOUS REGULATION OF THE BREATH, AND VARIOUS TECHNIQUES TO IMPROVE ATTENTIONAL FOCUS. HOWEVER, SO FAR LITTLE IF ANY RESEARCH HAS ATTEMPTED TO DECONSTRUCT THE ROLE OF THESE DIFFERENT COMPONENT PARTS IN ORDER TO BETTER UNDERSTAND THEIR RESPECTIVE CONTRIBUTION TO THE EFFECTS OF YBP. A CLEAR OPERATIONAL DEFINITION OF YOGA-BASED THERAPEUTIC INTERVENTIONS FOR SCIENTIFIC PURPOSES, AS WELL AS A COMPREHENSIVE THEORETICAL FRAMEWORK FROM WHICH TESTABLE HYPOTHESES CAN BE FORMULATED, IS THEREFORE NEEDED. HERE WE PROPOSE SUCH A FRAMEWORK, AND OUTLINE THE BOTTOM-UP NEUROPHYSIOLOGICAL AND TOP-DOWN NEUROCOGNITIVE MECHANISMS HYPOTHESIZED TO BE AT PLAY IN YBP.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
19 1266  31 FLUID INTELLIGENCE AND BRAIN FUNCTIONAL ORGANIZATION IN AGING YOGA AND MEDITATION PRACTITIONERS. NUMEROUS STUDIES HAVE DOCUMENTED THE NORMAL AGE-RELATED DECLINE OF NEURAL STRUCTURE, FUNCTION, AND COGNITIVE PERFORMANCE. PRELIMINARY EVIDENCE SUGGESTS THAT MEDITATION MAY REDUCE DECLINE IN SPECIFIC COGNITIVE DOMAINS AND IN BRAIN STRUCTURE. HERE WE EXTENDED THIS RESEARCH BY INVESTIGATING THE RELATION BETWEEN AGE AND FLUID INTELLIGENCE AND RESTING STATE BRAIN FUNCTIONAL NETWORK ARCHITECTURE USING GRAPH THEORY, IN MIDDLE-AGED YOGA AND MEDITATION PRACTITIONERS, AND MATCHED CONTROLS. FLUID INTELLIGENCE DECLINED SLOWER IN YOGA PRACTITIONERS AND MEDITATORS COMBINED THAN IN CONTROLS. RESTING STATE FUNCTIONAL NETWORKS OF YOGA PRACTITIONERS AND MEDITATORS COMBINED WERE MORE INTEGRATED AND MORE RESILIENT TO DAMAGE THAN THOSE OF CONTROLS. FURTHERMORE, MINDFULNESS WAS POSITIVELY CORRELATED WITH FLUID INTELLIGENCE, RESILIENCE, AND GLOBAL NETWORK EFFICIENCY. THESE FINDINGS REVEAL THE POSSIBILITY TO INCREASE RESILIENCE AND TO SLOW THE DECLINE OF FLUID INTELLIGENCE AND BRAIN FUNCTIONAL ARCHITECTURE AND SUGGEST THAT MINDFULNESS PLAYS A MECHANISTIC ROLE IN THIS PRESERVATION.	2014	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
20 2760  46 YOGA PRACTITIONERS UNIQUELY ACTIVATE THE SUPERIOR PARIETAL LOBULE AND SUPRAMARGINAL GYRUS DURING EMOTION REGULATION. CHRONIC STRESS CONTRIBUTES TO BOTH MENTAL AND PHYSICAL ILLNESS. A HIGH PREVALENCE AND COST OF STRESS-RELATED ILLNESSES NORTH AMERICA WARRANTS INVESTIGATION INTO ALTERNATIVE OR COMPLEMENTARY THERAPIES WHICH MAY HELP REDUCE ADVERSE REACTIONS TO STRESSFUL STIMULI. EMOTION REGULATION IS THE PROCESS OF MONITORING AND ADJUSTING EMOTIONAL RESPONSES TO ENVIRONMENTAL STIMULI AND STRESSORS. INDIVIDUALS WHO PARTICIPATE IN PHYSICAL ACTIVITY ARE LESS LIKELY TO HAVE ADVERSE RESPONSES TO POTENTIALLY STRESSFUL SITUATIONS, POTENTIALLY DUE TO ADAPTIONS IN EMOTION REGULATION. YOGA IS A FORM OF PHYSICAL ACTIVITY INVOLVING STRETCHING EXERCISES AND MEDITATION, THAT MAY LESSEN INDIVIDUALS' LEVELS OF STRESS AND ANXIETY AND IMPROVE EMOTION REGULATION. HIGH-FREQUENCY HEART RATE VARIABILITY (HF-HRV) IS CONSIDERED A MEASURE OF PARASYMPATHETIC NERVOUS SYSTEM (PNS) ACTIVITY DURING THE EMOTION REGULATION. MEASURING HRV AND BRAIN ACTIVITY USING FUNCTIONAL MAGNETIC RESONANCE IMAGING (FMRI) OFFERS A USEFUL, NONINVASIVE APPROACH TO EVALUATING "NEUROVISCERAL" COMPONENTS OF EMOTION REGULATION. WE AIMED TO DETERMINE WHETHER YOGA PRACTITIONERS (YP) EXHIBIT DIFFERENT PATTERNS OF BRAIN ACTIVATION COMPARED TO RECREATIONAL ATHLETES (RA) WITHOUT CURRENT YOGA EXPERIENCE, WHILE VIEWING EMOTIONALLY AROUSING VISUAL STIMULI. OUR SECONDARY AIM WAS TO EXAMINE POTENTIAL DIFFERENCES ACROSS GROUPS IN HRV THROUGHOUT THE PRESENTATION OF THESE STIMULI. ANALYSIS OF FMRI DATA DURING EXPOSURE TO EMOTION-EVOKING (EE) STIMULI REVEALED THAT THE YP GROUP ACTIVATED TWO UNIQUE BRAIN AREAS, NAMELY THE SUPERIOR PARIETAL LOBULE AND THE SUPRAMARGINAL GYRUS. THESE AREAS HAVE BEEN ASSOCIATED WITH ATTENTIONAL AWARENESS AND REDUCED EGOCENTRIC BIAS, PROCESSES THAT HAVE BEEN IMPLICATED IN EMOTION REGULATION BY OTHERS. THE RA GROUP ACTIVATED THE INFERIOR MIDDLE FRONTAL CORTEX, AN AREA ASSOCIATED WITH COGNITIVE REAPPRAISAL DURING EMOTION REGULATION. THE YP GROUP ALSO DEMONSTRATED A TREND TOWARDS A HIGHER RATIO OF LOW- TO HIGH-FREQUENCY HRV COMPARED TO THE RA GROUP. THE PRESENT FINDINGS SUPPORT THE PRESENCE OF EXPERIENCE-DEPENDENT NEUROVISCERAL MECHANISMS ASSOCIATED WITH EMOTION REGULATION. INDIVIDUALS WHO PRACTICE YOGA REGULATE THEIR NEUROVISCERAL RESPONSES TO POTENTIALLY STRESSFUL EXTERNAL STIMULI IN A DIFFERENT MANNER THAN RECREATIONAL ATHLETES WHO DO NOT ENGAGE IN YOGA PRACTICE. THE PRESENT STUDY HAD A SMALL SAMPLE SIZE (RA: N = 12; YP: N = 19), WHICH SHOULD BE TAKEN INTO ACCOUNT WHEN INTERPRETING THE RESULTS.	2018