1 2714 165 YOGA LESSONS FOR CONSCIOUSNESS RESEARCH: A PARALIMBIC NETWORK BALANCING BRAIN RESOURCE ALLOCATION. CONSCIOUSNESS HAS BEEN PROPOSED TO PLAY A KEY ROLE IN SHAPING FLEXIBLE LEARNING AND AS SUCH IS THOUGHT TO CONFER AN EVOLUTIONARY ADVANTAGE. ATTENTION AND AWARENESS ARE THE PERHAPS MOST IMPORTANT UNDERLYING PROCESSES, YET THEIR PRECISE RELATIONSHIP IS PRESENTLY UNCLEAR. BOTH OF THESE PROCESSES MUST, HOWEVER, SERVE THE EVOLUTIONARY IMPERATIVES OF SURVIVAL AND PROCREATION. THEY ARE THUS INTIMATELY BOUND BY REWARD AND EMOTION TO HELP TO PRIORITIZE EFFICIENT BRAIN RESOURCE ALLOCATION IN ORDER TO PREDICT AND OPTIMIZE BEHAVIOR. HERE WE SHOW HOW THIS PROCESS IS SERVED BY A PARALIMBIC NETWORK CONSISTING PRIMARILY OF REGIONS LOCATED ON THE MIDLINE OF THE HUMAN BRAIN. USING MANY DIFFERENT TECHNIQUES, EXPERIMENTS HAVE DEMONSTRATED THAT THIS NETWORK IS EFFECTIVE AND SPECIFIC FOR SELF-AWARENESS AND CONTRIBUTES TO THE SENSE OF UNITY OF CONSCIOUSNESS BY ACTING AS A COMMON NEURAL PATH FOR A WIDE VARIETY OF CONSCIOUS EXPERIENCES. INTERESTINGLY, HEMODYNAMIC ACTIVITY IN THE NETWORK DECREASES WITH FOCUSING ON EXTERNAL STIMULI, WHICH HAS LED TO THE IDEA OF A DEFAULT MODE NETWORK. THIS NETWORK IS ONE OF MANY NETWORKS THAT WAX AND VANE AS RESOURCES ARE ALLOCATED TO ACCOMMODATE THE DIFFERENT CYCLICAL NEEDS OF THE ORGANISM PRIMARILY RELATED TO THE FUNDAMENTAL PLEASURES AFFORDED BY EVOLUTION: FOOD, SEX, AND CONSPECIFICS. HERE WE HYPOTHESIZE, HOWEVER, THAT THE PARALIMBIC NETWORK SERVES A CRUCIAL ROLE IN BALANCING AND REGULATING BRAIN RESOURCE ALLOCATION, AND DISCUSS HOW IT CAN BE THOUGHT OF AS A LINK BETWEEN CURRENT THEORIES OF SO-CALLED "DEFAULT MODE," "RESTING STATE NETWORKS," AND "GLOBAL WORKSPACE." WE SHOW HOW MAJOR DEVELOPMENTAL DISORDERS OF SELF-AWARENESS AND SELF-CONTROL CAN ARISE FROM PROBLEMS IN THE PARALIMBIC NETWORK AS DEMONSTRATED HERE BY THE EXAMPLE OF ASPERGER SYNDROME. WE CONCLUDE THAT ATTENTION, AWARENESS, AND EMOTION ARE INTEGRATED BY A PARALIMBIC NETWORK THAT HELPS TO EFFICIENTLY ALLOCATE BRAIN RESOURCES TO OPTIMIZE BEHAVIOR AND HELP SURVIVAL. 2011 2 2014 24 SUDARSHAN KRIYA YOGA: BREATHING FOR HEALTH. BREATHING TECHNIQUES ARE REGULARLY RECOMMENDED FOR RELAXATION, STRESS MANAGEMENT, CONTROL OF PSYCHOPHYSIOLOGICAL STATES, AND TO IMPROVE ORGAN FUNCTION. YOGIC BREATHING, DEFINED AS A MANIPULATION OF BREATH MOVEMENT, HAS BEEN SHOWN TO POSITIVELY AFFECT IMMUNE FUNCTION, AUTONOMIC NERVOUS SYSTEM IMBALANCES, AND PSYCHOLOGICAL OR STRESS-RELATED DISORDERS. THE AIM OF THIS STUDY WAS TO ASSESS AND PROVIDE A COMPREHENSIVE REVIEW OF THE PHYSIOLOGICAL MECHANISMS, THE MIND-BODY CONNECTION, AND THE BENEFITS OF SUDARSHAN KRIYA YOGA (SKY) IN A WIDE RANGE OF CLINICAL CONDITIONS. VARIOUS ONLINE DATABASES SEARCHED WERE MEDLINE, PSYCHINFO, EMBASE, AND GOOGLE SCHOLAR. ALL THE RESULTS WERE CAREFULLY SCREENED AND ARTICLES ON SKY WERE SELECTED. THE REFERENCES FROM THESE ARTICLES WERE CHECKED TO FIND ANY OTHER POTENTIALLY RELEVANT ARTICLES. SKY, A UNIQUE YOGIC BREATHING PRACTICE, INVOLVES SEVERAL TYPES OF CYCLICAL BREATHING PATTERNS, RANGING FROM SLOW AND CALMING TO RAPID AND STIMULATING. THERE IS MOUNTING EVIDENCE TO SUGGEST THAT SKY CAN BE A BENEFICIAL, LOW-RISK, LOW-COST ADJUNCT TO THE TREATMENT OF STRESS, ANXIETY, POST-TRAUMATIC STRESS DISORDER, DEPRESSION, STRESS-RELATED MEDICAL ILLNESSES, SUBSTANCE ABUSE, AND REHABILITATION OF CRIMINAL OFFENDERS. 2013 3 2807 27 YOGA THERAPY RESEARCH: A WHOLE-SYSTEMS PERSPECTIVE ON COMPARATIVE EFFECTIVENESS AND PATIENT-CENTERED OUTCOMES. FOR THE YOGA RESEARCH COMMUNITY TO CAPITALIZE ON ITS CURRENT MOMENTUM, IT IS CRITICAL TO CONSIDER CERTAIN DEVELOPMENTS IN RESEARCH THEORY AND INNOVATIVE METHODOLOGIES. THE CONCEPT OF MODEL VALIDITY MUST BE INCORPORATED IN YOGA THERAPY RESEARCH SO THAT EXPLANATORY CONSTRUCTS EMPLOYED AND OUTCOME MEASURES CHOSEN REFLECT THE PRINCIPLES OF TRADITIONAL YOGIC SCIENCE. FOCUSING ON EFFECTIVENESS RESEARCH WILL ENSURE MAXIMUM GENERALIZABILITY OF STUDY RESULTS AND REFLECT REAL-WORLD THERAPY DELIVERY SETTINGS, THEREBY INCREASING THE RELEVANCE OF OUTCOMES. WHOLE SYSTEMS OF HEALING REQUIRE RESEARCH METHODOLOGIES THAT ADDRESS COMPLEX RELATIONSHIPS BETWEEN MULTI-TARGET THERAPIES WITH MULTIPLE POTENTIAL TREATMENT RESULTS. COMPLEX, DYNAMIC SYSTEMS THEORY PROVIDES THE THEORETICAL AND METHODOLOGICAL INNOVATIONS NECESSARY TO DESIGN STUDIES, CHOOSE OUTCOMES, AND ANALYZE DATA IN A WAY THAT CAN ACCOUNT FOR CHARTING COMPLEX, CYCLICAL, THERAPEUTIC TRAJECTORIES ACROSS TIME. EMPHASIZING PATIENT-CENTERED OUTCOMES IS ALIGNED WITH THE PATENT-ORIENTED AND TAILORED NATURED OF YOGA THERAPY DELIVERY. INCREASING THE QUALITY AND QUANTITY OF COMPARATIVE EFFECTIVENESS RESEARCH TO ANALYZE THE HARMS AND BENEFITS OF CONTRASTING THERAPIES CAN PROVIDE AN INFRASTRUCTURE FOR DESIGNING STUDIES THAT CAN HAVE SIGNIFICANT PRACTICAL IMPACT. THE CREATION OF PRACTICE-BASED RESEARCH NETWORKS WITHIN THE YOGA RESEARCH COMMUNITY WILL INCENTIVIZE LINKS BETWEEN MAINSTREAM CLINICAL RESEARCHERS AND YOGA THERAPY DELIVERY SETTINGS, ULTIMATELY DEVELOPING COLLABORATIVE NETWORKS. YOGA THERAPY CENTERS CAN FACILITATE PATIENT RECRUITMENT FOR STUDIES AND INFORM STANDARDS FOR YOGA RESEARCHERS. COLLABORATIVE EFFORTS BETWEEN THE YOGA AND AYURVEDIC RESEARCH COMMUNITIES WILL STREAMLINE EFFORTS, SOLIDIFY EXPERTISE, CROSS-POLLINATE THEORETICAL AND METHODOLOGICAL INNOVATION, AND CONSOLIDATE EFFORTS TO SECURE RESEARCH FUNDING AND INCREASE PUBLICATION AND DISSEMINATION OF STUDY FINDINGS. 2015 4 2013 26 SUDARSHAN KRIYA YOGA: A BREATH OF HOPE DURING COVID-19 PANDEMIC. IMPORTANT COUNTER MEASURES TO COMBAT AN INFECTIOUS DISEASE PANDEMIC INCLUDE VACCINATION, ANTIVIRAL THERAPY, AND IMMUNOMODULATION THERAPY. VACCINATIONS ARE DISEASE SPECIFIC AND MOREOVER STRAIN SPECIFIC, SO THE PROTECTION PROVIDED IS ALSO SPECIFIC AND LIMITED. ANTIVIRAL THERAPIES ARE COSTLY AND REQUIRE BULK PRODUCTION OF DRUGS, HENCE GLOBALLY THERE IS AN INCREASED INTEREST TOWARD LOW-RISK, COST-EFFECTIVE COMPLEMENTARY ALTERNATIVE THERAPIES, SUCH AS YOGA AND AYURVEDA TO TACKLE THE INFECTIOUS PANDEMIC, CORONAVIRUS DISEASE 2019 (COVID-19). THERE IS CLINICAL EVIDENCE AVAILABLE ON THE POTENTIAL COMPLEMENTARY ROLE OF YOGIC PRACTICES IN THE MANAGEMENT OF NONCOMMUNICABLE AND COMMUNICABLE DISEASES. VARIOUS ONLINE DATABASES WERE SEARCHED FOR ARTICLES PUBLISHED BETWEEN 2000 AND 2020. DATABASES EXPLORED WERE MEDLINE, EMBASE, INDIAN CITATION INDEX, PSYCINFO, INDEX MEDICUS FOR SOUTH-EAST ASIA REGION, AND GOOGLE SCHOLAR. ALL SEARCH RESULTS WERE SCREENED, AND ARTICLES RELATED TO KEYWORDS SUCH AS COVID-19, YOGA THERAPY, AND SUDARSHAN KRIYA YOGA (SKY) WERE SELECTED FOR DATA EXTRACTION. QUALITY OF THE STUDIES INCLUDED WAS EVALUATED ON THE BASIS OF THE CONSTRUCT VALIDITY, CONTENT VALIDITY, RELEVANCE, BIAS, CREDIBILITY RELATING TO INFORMATION, AND DATA SOURCES. SKY IS A UNIQUE YOGIC PRACTICE THAT INCLUDES SPECIFIC SEQUENTIAL BREATHING TECHNIQUES. IT BALANCES THE AUTONOMIC NERVOUS SYSTEM AND THUS CAN ALLEVIATE ANXIETY, ROUTINE STRESS, DEPRESSION, STRESS-RELATED MEDICAL DISORDERS, AND POSTTRAUMATIC STRESS. IT POTENTIATES NATURAL HOST IMMUNE DEFENSES THAT ARE ESSENTIAL TO TACKLE A PLETHORA OF MICROBIAL INFECTIONS. THIS NARRATIVE REVIEW ARTICLE PROVIDES AN OVERVIEW OF POTENTIAL THERAPEUTIC BENEFITS THAT SKY CAN OFFER TO THE POPULATION AT LARGE DURING THIS COVID-19 PANDEMIC. 2021 5 1669 38 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 6 2371 29 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 7 1772 37 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 8 1897 34 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 9 1286 34 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 10 2531 33 YOGA EFFECTS ON BRAIN HEALTH: A SYSTEMATIC REVIEW OF THE CURRENT LITERATURE. 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. 2019 11 768 22 EFFECT OF TWO YOGA-BASED RELAXATION TECHNIQUES ON MEMORY SCORES AND STATE ANXIETY. BACKGROUND: A YOGA PRACTICE INVOLVING CYCLES OF YOGA POSTURES AND SUPINE REST (CALLED CYCLIC MEDITATION) WAS PREVIOUSLY SHOWN TO IMPROVE PERFORMANCE IN ATTENTION TASKS MORE THAN RELAXATION IN THE CORPSE POSTURE (SHAVASANA). THIS WAS ASCRIBED TO REDUCED ANXIETY, THOUGH THIS WAS NOT ASSESSED. METHODS: IN FIFTY-SEVEN MALE VOLUNTEERS (GROUP AVERAGE AGE +/- S.D., 26.6 +/- 4.5 YEARS) THE IMMEDIATE EFFECT OF TWO YOGA RELAXATION TECHNIQUES WAS STUDIED ON MEMORY AND STATE ANXIETY. ALL PARTICIPANTS WERE ASSESSED BEFORE AND AFTER (I) CYCLIC MEDITATION (CM) PRACTICED FOR 22:30 MINUTES ON ONE DAY AND (II) AN EQUAL DURATION OF SUPINE REST (SR) OR THE CORPSE POSTURE (SHAVASANA), ON ANOTHER DAY. SECTIONS OF THE WECHSLER MEMORY SCALE (WMS) WERE USED TO ASSESS; (I) ATTENTION AND CONCENTRATION (DIGIT SPAN FORWARD AND BACKWARD), AND (II) ASSOCIATE LEARNING. STATE ANXIETY WAS ASSESSED USING SPIELBERGER'S STATE-TRAIT ANXIETY INVENTORY (STAI). RESULTS: THERE WAS A SIGNIFICANT IMPROVEMENT IN THE SCORES OF ALL SECTIONS OF THE WMS STUDIED AFTER BOTH CM AND SR, BUT, THE MAGNITUDE OF CHANGE WAS MORE AFTER CM COMPARED TO AFTER SR. THE STATE ANXIETY SCORES DECREASED AFTER BOTH CM AND SR, WITH A GREATER MAGNITUDE OF DECREASE AFTER CM. THERE WAS NO CORRELATION BETWEEN PERCENTAGE CHANGE IN MEMORY SCORES AND STATE ANXIETY FOR EITHER SESSION. CONCLUSION: A CYCLICAL COMBINATION OF YOGA POSTURES AND SUPINE REST IN CM IMPROVED MEMORY SCORES IMMEDIATELY AFTER THE PRACTICE AND DECREASED STATE ANXIETY MORE THAN REST IN A CLASSICAL YOGA RELAXATION POSTURE (SHAVASANA). 2009 12 1191 28 EVOLUTION FROM FOUR MENTAL STATES TO THE HIGHEST STATE OF CONSCIOUSNESS: A NEUROPHYSIOLOGICAL BASIS OF MEDITATION AS DEFINED IN YOGA TEXTS. 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. 2019 13 2781 44 YOGA THERAPY AND POLYVAGAL THEORY: THE CONVERGENCE OF TRADITIONAL WISDOM AND CONTEMPORARY NEUROSCIENCE FOR SELF-REGULATION AND RESILIENCE. YOGA THERAPY IS A NEWLY EMERGING, SELF-REGULATING COMPLEMENTARY AND INTEGRATIVE HEALTHCARE (CIH) PRACTICE. IT IS GROWING IN ITS PROFESSIONALIZATION, RECOGNITION AND UTILIZATION WITH A DEMONSTRATED COMMITMENT TO SETTING PRACTICE STANDARDS, EDUCATIONAL AND ACCREDITATION STANDARDS, AND PROMOTING RESEARCH TO SUPPORT ITS EFFICACY FOR VARIOUS POPULATIONS AND CONDITIONS. HOWEVER, HETEROGENEITY OF PRACTICE, POOR REPORTING STANDARDS, AND LACK OF A BROADLY ACCEPTED UNDERSTANDING OF THE NEUROPHYSIOLOGICAL MECHANISMS INVOLVED IN YOGA THERAPY LIMITS THE STRUCTURING OF TESTABLE HYPOTHESES AND CLINICAL APPLICATIONS. CURRENT PROPOSED FRAMEWORKS OF YOGA-BASED PRACTICES FOCUS ON THE INTEGRATION OF BOTTOM-UP NEUROPHYSIOLOGICAL AND TOP-DOWN NEUROCOGNITIVE MECHANISMS. IN ADDITION, IT HAS BEEN PROPOSED THAT PHENOMENOLOGY AND FIRST PERSON ETHICAL INQUIRY CAN PROVIDE A LENS THROUGH WHICH YOGA THERAPY IS VIEWED AS A PROCESS THAT CONTRIBUTES TOWARDS EUDAIMONIC WELL-BEING IN THE EXPERIENCE OF PAIN, ILLNESS OR DISABILITY. IN THIS ARTICLE WE BUILD ON THESE FRAMEWORKS, AND PROPOSE A MODEL OF YOGA THERAPY THAT CONVERGES WITH POLYVAGAL THEORY (PVT). PVT LINKS THE EVOLUTION OF THE AUTONOMIC NERVOUS SYSTEM TO THE EMERGENCE OF PROSOCIAL BEHAVIORS AND POSITS THAT THE NEURAL PLATFORMS SUPPORTING SOCIAL BEHAVIOR ARE INVOLVED IN MAINTAINING HEALTH, GROWTH AND RESTORATION. THIS EXPLANATORY MODEL WHICH CONNECTS NEUROPHYSIOLOGICAL PATTERNS OF AUTONOMIC REGULATION AND EXPRESSION OF EMOTIONAL AND SOCIAL BEHAVIOR, IS INCREASINGLY UTILIZED AS A FRAMEWORK FOR UNDERSTANDING HUMAN BEHAVIOR, STRESS AND ILLNESS. SPECIFICALLY, WE DESCRIBE HOW PVT CAN BE CONCEPTUALIZED AS A NEUROPHYSIOLOGICAL COUNTERPART TO THE YOGIC CONCEPT OF THE GUNAS, OR QUALITIES OF NATURE. SIMILAR TO THE NEURAL PLATFORMS DESCRIBED IN PVT, THE GUNAS PROVIDE THE FOUNDATION FROM WHICH BEHAVIORAL, EMOTIONAL AND PHYSICAL ATTRIBUTES EMERGE. WE DESCRIBE HOW THESE TWO DIFFERENT YET ANALOGOUS FRAMEWORKS-ONE BASED IN NEUROPHYSIOLOGY AND THE OTHER IN AN ANCIENT WISDOM TRADITION-HIGHLIGHT YOGA THERAPY'S PROMOTION OF PHYSICAL, MENTAL AND SOCIAL WELLBEING FOR SELF-REGULATION AND RESILIENCE. THIS PARALLEL BETWEEN THE NEURAL PLATFORMS OF PVT AND THE GUNAS OF YOGA IS INSTRUMENTAL IN CREATING A TRANSLATIONAL FRAMEWORK FOR YOGA THERAPY TO ALIGN WITH ITS PHILOSOPHICAL FOUNDATIONS. CONSEQUENTLY, YOGA THERAPY CAN OPERATE AS A DISTINCT PRACTICE RATHER THAN FITTING INTO AN OUTSIDE MODEL FOR ITS UTILIZATION IN RESEARCH AND CLINICAL CONTEXTS. 2018 14 1951 19 SCIENCE OF THE MIND: ANCIENT YOGA TEXTS AND MODERN STUDIES. THE PRACTICE OF YOGA IS GAINING IN POPULARITY WITH A WIDE RANGE OF PRACTICES. RECENT RESEARCH AND DESCRIPTIONS FROM THE ANCIENT TEXTS ARE OFTEN CONCURRENT WITH REGARD TO THE EFFECTS OF THE PRACTICE, TAKING INTO ACCOUNT EXPECTED DIFFERENCES BETWEEN MODERN SCIENTIFIC TERMS AND THOSE USED IN THE ORIGINAL TEXTS. VOLUNTARILY REGULATED YOGA BREATHING PRACTICES FORM A BRIDGE BETWEEN PHYSICAL AND MENTAL CHANGES. THE VOLUNTARILY REGULATED YOGA BREATHING HAS DISTINCT EFFECTS ON METABOLISM, THE AUTONOMIC NERVOUS SYSTEM, HIGHER BRAIN FUNCTIONS, AND MENTAL STATE. THE EFFECTS OF MEDITATION ON THE NERVOUS SYSTEM AND MENTAL STATE ARE EVEN CLEARER. 2013 15 1590 23 MEDITATION AND YOGA CAN MODULATE BRAIN MECHANISMS THAT AFFECT BEHAVIOR AND ANXIETY-A MODERN SCIENTIFIC PERSPECTIVE. MEDITATION AND YOGA TECHNIQUES ARE RECEIVING INCREASED ATTENTION THROUGHOUT THE WORLD, DUE TO THE ACCUMULATION OF EVIDENCE BASED RESEARCH THAT PROVES THE DIRECT AND INDIRECT BENEFITS OF SUCH PRACTICES. BASED ON STUDIES CONDUCTED SO FAR, IT HAS BEEN FOUND THAT THE PRACTICE OF MEDITATION TRIGGERS NEUROTRANSMITTERS THAT MODULATE PSYCHOLOGICAL DISORDERS SUCH AS ANXIETY. THIS PAPER WILL REVIEW THE PSYCHOLOGICAL EFFECTS OF THE PRACTICE OF MEDITATION, THE ROLE OF NEUROTRANSMITTERS, AND STUDIES USING EEG AND FMRI. 2015 16 571 23 DEFINING YOGA-NIDRA: TRADITIONAL ACCOUNTS, PHYSIOLOGICAL RESEARCH, AND FUTURE DIRECTIONS. THE TERM YOGA-NIDRA HAS BEEN USED IN MANY EMPIRICAL STUDIES TO REFER TO RELAXATION AND GUIDED IMAGERY. THESE TECHNIQUES DO NOT REPRESENT THE INTENTION OR PHYSIOLOGICAL CORRELATES OF YOGANIDRA DISCUSSED IN THE TRADITIONAL YOGA LITERATURE. WE PROPOSE AN OPERATIONAL DEFINITION OF YOGA-NIDRA THAT IS SUPPORTED BY SEVERAL PHYSIOLOGICALLY TESTABLE HYPOTHESES REGARDING ITS OUTCOMES AND EFFECTS. TRADITIONAL DESCRIPTIONS OF YOGA-NIDRA AND CONTEMPORARY ACCOUNTS OF ITS PRACTICE ARE REVIEWED, AND STUDIES EXAMINING THE PHYSIOLOGICAL CORRELATES OF YOGA-NIDRA ARE EXAMINED. PROPOSED HYPOTHESES FOR FUTURE RESEARCH USING THIS OPERATIONAL DEFINITION ARE PROVIDED. 2013 17 565 33 CURRENT STATUS OF YOGA IN MENTAL HEALTH SERVICES. YOGA (DERIVED FROM 'YUJ' WHICH MEANS TO YOKE TOGETHER OR UNITE) HAS BEEN USED FOR MILLENNIA AS A TOOL FOR SELF-IMPROVEMENT, WITH THE ULTIMATE GOAL OF UNITING THE INDIVIDUAL CONSCIOUSNESS WITH THE UNIVERSAL. THE PHYSICAL ELEMENTS OF YOGA, ALTHOUGH SEEN AS NECESSARY IN THE PATH TO ACHIEVE THE GOAL, THEY WERE NOT CONSIDERED AS THE ENDPOINT FOR A PRACTITIONER. SAGE PATANJALI, WHO CODIFIED THE PRACTICES INTO AN EIGHT-LIMBED MODEL (ASHTANGA YOGA) IN THE PATANJALI YOGA SUTRAS, MAKES IT CLEAR THAT THE TARGET OF YOGA IS PRIMARILY THE MIND. HOWEVER, IN THE MODERN WORLD, YOGA PRACTICES HAVE BECOME IMMENSELY POPULAR AS AIDS TO IMPROVE HEALTH. YOGA-BASED PRACTICES ARE BEING EXTENSIVELY USED AS THERAPEUTIC INGREDIENTS, ALONE OR AS ADJUNCTS TO OTHER THERAPIES IN A VARIETY OF DISORDERS, BOTH PHYSICAL AND MENTAL. THERE IS NOW STRONG EVIDENCE TO SUGGEST THAT YOGA-BASED INTERVENTIONS ARE BENEFICIAL IN SEVERAL LIFESTYLE DISORDERS. RECENT RESEARCH HAS ALSO SHOWN SIGNIFICANT BENEFITS IN MENTAL DISORDERS SUCH AS DEPRESSION, ANXIETY, AND PSYCHOSIS. THIS PAPER DISCUSSES THE PLACE OF YOGA AS ONE OF THE THERAPEUTIC STRATEGIES IN THE HOLISTIC APPROACH TO MENTAL DISORDERS, AND THE CHALLENGES INHERENT TO RESEARCH IN THIS AREA. 2016 18 2420 29 YOGA AND MENTAL HEALTH: A DIALOGUE BETWEEN ANCIENT WISDOM AND MODERN PSYCHOLOGY. BACKGROUND: MANY YOGA TEXTS MAKE REFERENCE TO THE IMPORTANCE OF MENTAL HEALTH AND THE USE OF SPECIFIC TECHNIQUES IN THE TREATMENT OF MENTAL DISORDERS. DIFFERENT CONCEPTS UTILIZED IN MODERN PSYCHOLOGY MAY NOT COME WITH CONTEMPORARY IDEAS, INSTEAD, THEY SEEM TO SHARE A COMMON ROOT WITH ANCIENT WISDOM. AIMS: THE GOAL OF THIS PERSPECTIVE ARTICLE IS TO CORRELATE MODERN TECHNIQUES USED IN PSYCHOLOGY AND PSYCHIATRY WITH YOGIC PRACTICES, IN THE TREATMENT OF MENTAL DISORDERS. MATERIALS AND METHODS: THE CURRENT ARTICLE PRESENTED A DIALOGUE BETWEEN THE YOGIC APPROACH FOR THE TREATMENT OF MENTAL DISORDER AND CONCEPTS USED IN MODERN PSYCHOLOGY, SUCH AS META-COGNITION, DISIDENTIFICATION, DECONDITIONING AND INTEROCEPTIVE EXPOSURE. CONCLUSIONS: CONTEMPLATIVE RESEARCH FOUND OUT THAT MODERN INTERVENTIONS IN PSYCHOLOGY MIGHT NOT COME FROM MODERN CONCEPTS AFTER ALL, BUT SHARE GREAT SIMILARITY WITH ANCIENT YOGIC KNOWLEDGE, GIVING US THE OPPORTUNITY TO INTEGRATE THE PSYCHOLOGICAL WISDOM OF BOTH EAST AND WEST. 2016 19 653 29 EATING DISORDERS, EMBODIMENT, AND YOGA: A CONCEPTUAL OVERVIEW. YOGA AND ITS RELATION TO EMBODIMENT AND DISORDERED EATING HAS ONLY RECENTLY RECEIVED RESEARCH ATTENTION. NEVERTHELESS, EARLY RESEARCH INDICATES THAT YOGA IS AN EFFECTIVE TOOL IN THE PREVENTION AND TREATMENT OF EATING DISORDERS. IT IS ASSUMED THAT YOGA AMELIORATES EATING DISORDER SYMPTOMS AND FACILITATES A SHIFT FROM NEGATIVE TOWARDS POSITIVE BODY IMAGE AND WELL-BEING BY CULTIVATING POSITIVE EMBODIMENT (I.E., THE ABILITY TO FEEL A SENSE OF CONNECTION BETWEEN MIND AND BODY). IN ORDER TO PROVIDE THE CONTEXT OF THE CONSTRUCTS OF DISORDERED EATING, EMBODIMENT, AND YOGA, THIS ARTICLE PRESENTS A BRIEF OVERVIEW AND CONCEPTUALIZATION OF THESE CONSTRUCTS. THE THREE MAJOR EATING DISORDERS AND CURRENT TREATMENT METHODS ARE DESCRIBED. FURTHER, THE PHILOSOPHICAL ROOTS AND THEORETICAL MODELS OF EMBODIMENT ARE DELINEATED AND THEIR COMMUNAL CORE FEATURES ARE OUTLINED. LASTLY, THE ORIGIN, BASIC PRINCIPLES, AND MODERN INTERPRETATIONS OF YOGA ARE DISCUSSED. 2020 20 93 34 A NARRATIVE REVIEW OF YOGA AND MINDFULNESS AS COMPLEMENTARY THERAPIES FOR ADDICTION. THIS PAPER REVIEWS THE PHILOSOPHICAL ORIGINS, CURRENT SCIENTIFIC EVIDENCE, AND CLINICAL PROMISE OF YOGA AND MINDFULNESS AS COMPLEMENTARY THERAPIES FOR ADDICTION. HISTORICALLY, THERE ARE EIGHT ELEMENTS OF YOGA THAT, TOGETHER, COMPRISE ETHICAL PRINCIPLES AND PRACTICES FOR LIVING A MEANINGFUL, PURPOSEFUL, MORAL AND SELF-DISCIPLINED LIFE. TRADITIONAL YOGA PRACTICES, INCLUDING POSTURES AND MEDITATION, DIRECT ATTENTION TOWARD ONE'S HEALTH, WHILE ACKNOWLEDGING THE SPIRITUAL ASPECTS OF ONE'S NATURE. MINDFULNESS DERIVES FROM ANCIENT BUDDHIST PHILOSOPHY, AND MINDFULNESS MEDITATION PRACTICES, SUCH AS GENTLE HATHA YOGA AND MINDFUL BREATHING, ARE INCREASINGLY INTEGRATED INTO SECULAR HEALTH CARE SETTINGS. CURRENT THEORETICAL MODELS SUGGEST THAT THE SKILLS, INSIGHTS, AND SELF-AWARENESS LEARNED THROUGH YOGA AND MINDFULNESS PRACTICE CAN TARGET MULTIPLE PSYCHOLOGICAL, NEURAL, PHYSIOLOGICAL, AND BEHAVIORAL PROCESSES IMPLICATED IN ADDICTION AND RELAPSE. A SMALL BUT GROWING NUMBER OF WELL-DESIGNED CLINICAL TRIALS AND EXPERIMENTAL LABORATORY STUDIES ON SMOKING, ALCOHOL DEPENDENCE, AND ILLICIT SUBSTANCE USE SUPPORT THE CLINICAL EFFECTIVENESS AND HYPOTHESIZED MECHANISMS OF ACTION UNDERLYING MINDFULNESS-BASED INTERVENTIONS FOR TREATING ADDICTION. BECAUSE VERY FEW STUDIES HAVE BEEN CONDUCTED ON THE SPECIFIC ROLE OF YOGA IN TREATING OR PREVENTING ADDICTION, WE PROPOSE A CONCEPTUAL MODEL TO INFORM FUTURE STUDIES ON OUTCOMES AND POSSIBLE MECHANISMS. ADDITIONAL RESEARCH IS ALSO NEEDED TO BETTER UNDERSTAND WHAT TYPES OF YOGA AND MINDFULNESS-BASED INTERVENTIONS WORK BEST FOR WHAT TYPES OF ADDICTION, WHAT TYPES OF PATIENTS, AND UNDER WHAT CONDITIONS. OVERALL, CURRENT FINDINGS INCREASINGLY SUPPORT YOGA AND MINDFULNESS AS PROMISING COMPLEMENTARY THERAPIES FOR TREATING AND PREVENTING ADDICTIVE BEHAVIORS. 2013