1
|
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.
Collapse
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.
| |
Collapse
|
2
|
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
|
3
|
Li Q, Guo Z, Hu F, Xiao M, Zhang Q, Wen J, Ying T, Zheng D, Wang Y, Yang S, Hou H. Tourism experiences reduce the risk of cognitive impairment in the Chinese older adult: a prospective cohort study. Front Public Health 2023; 11:1271319. [PMID: 37942247 PMCID: PMC10629014 DOI: 10.3389/fpubh.2023.1271319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 10/09/2023] [Indexed: 11/10/2023] Open
Abstract
Background Given the etiological complexity of cognitive impairment, no effective cure currently exists for precise treatment of dementia. Although scholars have noted tourism's potential role in managing cognitive impairment and mild dementia, more robust empirical investigation is needed in this area. This study aimed to examine the associations between tourism and cognitive impairment and dementia in older Chinese adults. Method From a nationwide community-based cohort, 6,717 individuals aged ≥60 were recruited from 2011 to 2014, of whom 669 (9.96%) had had at least one tourism experience in the 2 years prior to enrollment. All the participants were then prospectively followed up until 2018. The association between tourism and cognitive impairment was examined by the Cox proportional hazards regression model. The adjusted hazard ratio (aHR) and its 95% confidence interval (CI) were calculated to evaluate the effect of tourism experience on cognitive impairment and dementia. Results A total of 1,416 individuals were newly diagnosed with cognitive impairment and 139 individuals with dementia onset during follow-up. The incidence of cognitive impairment was significantly lower among participants with tourism experiences (316.94 per 10,000 person-years) than those without such experiences (552.38 per 10,000 person-years). Cox regression showed that tourism decreased the risk of cognitive impairment (aHR = 0.69, 95% CI: 0.41-0.62) when adjusted for behavioral covariates and characteristics. Compared with participants without tourism experiences, those with 1, 2, and ≥3 tourism experiences had a lower risk of cognitive impairment with the aHRs of 0.72 (95% CI: 0.52-0.99), 0.65 (0.42-1.01), and 0.68 (0.44-0.98), respectively. Tourism experiences also reduced participants' risk of dementia (aHR = 0.41, 95% CI: 0.19-0.89). Conclusion Our findings demonstrated associations between tourism and reduced risks of cognitive impairment and dementia in older Chinese adults. Thus, tourism could serve as a novel approach to dementia prevention.
Collapse
Affiliation(s)
- Qian Li
- School of Public Health, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Zheng Guo
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Fangli Hu
- Centre for Precision Health, Edith Cowan University, Joondalup, WA, Australia
| | - Mengfei Xiao
- School of Public Health, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Qiang Zhang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Shandong First Medical University, Taian, China
| | - Jun Wen
- School of Business and Law, Edith Cowan University, Joondalup, WA, Australia
| | - Tianyu Ying
- Department of Tourism and Hotel Management, Zhejiang University, Hangzhou, China
| | - Danni Zheng
- Department of Tourism, Fudan University, Shanghai, China
| | - Youxin Wang
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China
| | - Song Yang
- Department of Endocrinology, The Affiliated Taian City Central Hospital of Qingdao University, Taian, China
| | - Haifeng Hou
- School of Public Health, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| |
Collapse
|
4
|
Savanth AS, PA V, Nair AK, Kutty BM. Differences in brain connectivity of meditators during assessing neurocognition via gamified experimental logic task: A machine learning approach. Neuroradiol J 2023; 36:305-314. [PMID: 36178411 PMCID: PMC10268101 DOI: 10.1177/19714009221129574] [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] [Indexed: 11/16/2022] Open
Abstract
Meditation practices increase attention, memory, and self-awareness. The neuroscientific study of meditation has helped gain useful insights into the functional changes in the brain. In this study, we have assessed the performance of meditators with different years of practice while performing an engaging task rather than studying the meditation practice itself. This task helps assess many neural processes simultaneously and represents task performance in presence of multiple audio-visual distractors as in a real-life scenario. The long-term practice of meditation could bring neuroplastic changes in the way cognitive processing is carried out. It could be conscious and effortful in short-term practitioners and relatively unconscious and effortless in long-term practitioners. Our goal is to understand if it is possible to differentiate between long-term and short-term meditators solely based on their cognitive processing. A group of proficient Rajayoga meditators from the Brahma Kumaris were recruited based on their meditation experience-Long-Term Practitioners (n = 12, mean 13,596 h) and Short-Term Practitioners (n = 10, mean 1095 h). A task-based functional Magnetic Resonance Imaging was acquired while the subjects performed the task. Functional Connectivity Analysis was performed to derive the correlation measures to be used as features for classification. Five supervised Machine Learning algorithms Logistic Regression, Support Vector Machine, Decision Tree, Random Forest, and Gradient Boosted Tree were used for classification. Among all the classifiers Gradient Boosted Tree performed the best with an accuracy of 77% when all the four Functional Connectivity Metrics were used. Connectivity in visual areas, cerebellum, left rostral prefrontal cortex, and middle frontal gyrus was found to be higher in long-term meditators. Such a classification demonstrates that long-term meditation practice brings about neuroplastic changes that influence cognitive processing.
Collapse
Affiliation(s)
- Ashwini S Savanth
- Department of ECE, BNMIT, Bangalore and Affiliated to VTU, Belagavi, India
| | - Vijaya PA
- Department of ECE, BNMIT, Bangalore and Affiliated to VTU, Belagavi, India
| | - Ajay K Nair
- Department of Neurophysiology, National Institute of Mental Health and Neurosciences, Bangalore, India
- Center for Healthy Minds, University of Wisconsin-Madison, Madison, WI, USA
| | - Bindu M Kutty
- Department of Neurophysiology, National Institute of Mental Health and Neurosciences, Bangalore, India
| |
Collapse
|
5
|
Jha K, Kumar P, Kumar Y, Ganashree CP, Tripathi C, Shrikant BK. The Effectiveness of Rajyoga Meditation as an Adjuvant for Panic Anxiety Syndrome. Int J Yoga 2023; 16:116-122. [PMID: 38204767 PMCID: PMC10775839 DOI: 10.4103/ijoy.ijoy_149_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/01/2023] [Accepted: 10/04/2023] [Indexed: 01/12/2024] Open
Abstract
Objective One of the most prevalent psychiatric conditions that affect a person's quality of life, ability to function and productivity, and consequently the loss of national income, are anxiety disorders. Rajyoga meditation (RM) is a form of meditation that is performed without rituals or mantras and can be practiced anywhere at any time. In this study, we attempted to evaluate the modulation of psycho-physiological parameters in panic disorder patients by a technique of short-term on RM. Methods In this prospective randomized control study, 110 patients with panic disorder were randomized into two groups, Group A (standard treatment + RM) and Group B (Standard treatment). The participants of both group participants were subjected to sleep quality score, Physical Health Questionnaire-9 score, Panic Disorder Severity Scale (PDSS), and Hamilton Anxiety Rating Scale (HAM-A) questionnaires before starting the study (baseline) and at the end of the 8th week. Study groups were compared at baseline and at the end of 8 weeks. Results We found that the PDSS/HAM-A was not statistically different among the study groups at baseline (P > 0.05); however, there was a statistically significant difference in mean z-scores of PDSS and post-HAM-A scores among the study groups at 8 weeks (P < 0.001). The composite score was created by adding the z-scores of pre- and post-PDSS and HAM-A. We found a statistically significant difference in postcomposite scores between the study groups (P < 0.001). Analysis of co-variance for PDSS and HAM-A among study groups showed statistical significance (P < 0.001). Conclusion When used in conjunction with pharmaceutical treatments for the treatment of panic disorder, RM is a successful therapy. The key factors are adherence and motivation while being supervised by a licensed therapist.
Collapse
Affiliation(s)
- Kamlesh Jha
- Department of Physiology, All India Institute of Medical Sciences, Patna, Bihar, India
| | - Pankaj Kumar
- Department of Physiology, All India Institute of Medical Sciences, Patna, Bihar, India
| | - Yogesh Kumar
- Department of Physiology, All India Institute of Medical Sciences, Patna, Bihar, India
| | - C. P. Ganashree
- Department of Physiology, All India Institute of Medical Sciences, Patna, Bihar, India
| | | | - B. K. Shrikant
- Natinal Co-ordinator, pARCWing of BKWSU, Mount Abu, Rajasthan, India
| |
Collapse
|
6
|
Stress and the impact of stressful events are lesser among raja yoga meditators – A cross sectional study during COVID-19 pandemic from India. CLINICAL EHEALTH 2022. [PMCID: PMC9270779 DOI: 10.1016/j.ceh.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
This research work presents a study on the relationship between stress & related events with meditation practice and other socio-demographic variables during COVID 19 pandemic among healthy adults. In this cross-sectional survey design, healthy adults with and without practice of Raja yoga meditation completed stress, anxiety & depression related questions (Depression Anxiety & stress Scale, DASS 21) and its impact (Impact of Event Scale-Revised, IES-R) along with other socio-demographic including COVID infection or contact related information. Data was assessed for difference in DASS 21 scores and IES-R scores between Raja yoga meditators (n = 802) & non-meditators (n = 357). An analysis was performed to study the predictors of DASS 21 and IES-R scores. We conclude that healthy Raja yoga meditation practitioners differ from non-meditators in terms of stress/anxiety/depression and its impact during COVID 19 pandemic and meditation practice predicts mental health better along with other sociodemographic variables.
Collapse
|
7
|
Ge H, Yan Z, Liu D, Qi W, Chen S, Yang K, Liu H, Zou Y, Hu X, Liu Y, Chen J. Synergetic reorganization of the contralateral structure and function in patients with unilateral frontal glioma. Front Neurosci 2022; 16:1016693. [PMID: 36213734 PMCID: PMC9538327 DOI: 10.3389/fnins.2022.1016693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/05/2022] [Indexed: 11/30/2022] Open
Abstract
Objective This study aimed to investigate the contralateral structural and functional plasticity induced by frontal gliomas. Methods Patients with left (n = 49) or right (n = 52) frontal diffuse glioma were enrolled along with 35 age- matched healthy controls (HCs). The gray-matter volumes (GMVs) of the contralesional region were measured using the voxel-based morphometry (VBM) analysis. Additionally, the amplitude of low-frequency fluctuation (ALFF) of the contralesional region was calculated via resting state functional magnetic resonance imaging (MRI) to assess functional alterations. Result The GMV of the contralateral orbitofrontal cortex of the right or left frontal gliomas was significantly larger than the corresponding GMV in the controls. In the patients with right frontal glioma, the GMV and ALFF in the left inferior frontal gyrus were significantly increased compared with those in the controls. Conclusion Glioma invasion of the frontal lobe can induce contralateral structural compensation and functional compensation, which show synergy in the left inferior frontal gyrus. Our findings explain why patients with unilateral frontal glioma can have functional balance, and offer the possibility of preserving the brain function while maximizing tumor removal.
Collapse
Affiliation(s)
- Honglin Ge
- Department of Neurosurgery, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Zheng Yan
- Department of Neurosurgery, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Dongming Liu
- Department of Neurosurgery, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Wenzhang Qi
- Department of Radiology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Shanshan Chen
- Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Kun Yang
- Department of Neurosurgery, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Hongyi Liu
- Department of Neurosurgery, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Yuanjie Zou
- Department of Neurosurgery, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Xinhua Hu
- Department of Neurosurgery, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Yong Liu
- Department of Neurosurgery, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Yong Liu,
| | - Jiu Chen
- Institute of Neuropsychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
- Institute of Brain Functional Imaging, Nanjing Medical University, Nanjing, China
- Jiu Chen,
| |
Collapse
|
8
|
Kokubun K, Nemoto K, Yamakawa Y. Brain conditions mediate the association between aging and happiness. Sci Rep 2022; 12:4290. [PMID: 35277535 PMCID: PMC8915763 DOI: 10.1038/s41598-022-07748-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 02/21/2022] [Indexed: 11/09/2022] Open
Abstract
As the population ages, the realization of a long and happy life is becoming an increasingly important issue in many societies. Therefore, it is important to clarify how happiness and the brain change with aging. In this study, which was conducted with 417 healthy adults in Japan, the analysis showed that fractional anisotropy (FA) correlated with happiness, especially in the internal capsule, corona radiata, posterior thalamic radiation, cingulum, and superior longitudinal fasciculus. According to previous neuroscience studies, these regions are involved in emotional regulation. In psychological studies, emotional regulation has been associated with improvement in happiness. Therefore, this study is the first to show that FA mediates the relationship between age and subjective happiness in a way that bridges these different fields.
Collapse
Affiliation(s)
- Keisuke Kokubun
- Open Innovation Institute, Kyoto University, Kyoto, Japan. .,Smart-Aging Research Center, Tohoku University, Sendai, Japan.
| | - Kiyotaka Nemoto
- Department of Psychiatry, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yoshinori Yamakawa
- Open Innovation Institute, Kyoto University, Kyoto, Japan.,ImPACT Program of Council for Science, Technology and Innovation (Cabinet Office, Government of Japan), Chiyoda, Tokyo, Japan.,Institute of Innovative Research, Tokyo Institute of Technology, Meguro, Tokyo, Japan.,Office for Academic and Industrial Innovation, Kobe University, Kobe, Japan.,Brain Impact, Kyoto, Japan
| |
Collapse
|
9
|
Savanth AS, Vijaya PA, Nair AK, Kutty BM. Classification of Rajayoga Meditators Based on the Duration of Practice Using Graph Theoretical Measures of Functional Connectivity from Task-Based Functional Magnetic Resonance Imaging. Int J Yoga 2022; 15:96-105. [PMID: 36329777 PMCID: PMC9623885 DOI: 10.4103/ijoy.ijoy_17_22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 07/05/2022] [Accepted: 07/11/2022] [Indexed: 01/24/2023] Open
Abstract
CONTEXT Functional magnetic resonance imaging (fMRI) studies on mental training techniques such as meditation have reported benefits like increased attention and concentration, better emotional regulation, as well as reduced stress and anxiety. Although several studies have examined functional activation and connectivity in long-term as well as short-term meditators from different meditation traditions, it is unclear if long-term meditation practice brings about distinct changes in network properties of brain functional connectivity that persist during task performance. Indeed, task-based functional connectivity studies of meditators are rare. AIMS This study aimed to differentiate between long-term and short-term Rajayoga meditators based on functional connectivity between regions of interest in the brain. Task-based fMRI was captured as the meditators performed an engaging task. The graph theoretical-based functional connectivity measures of task-based fMRI were calculated using CONN toolbox and were used as features to classify the two groups using Machine Learning models. SUBJECTS AND METHODS In this study, we recruited two age and sex-matched groups of Rajayoga meditators from the Brahma Kumaris tradition that differed in the duration of their meditation experience: Long-term practitioners (n = 12, mean 13,596 h) and short-term practitioners (n = 10, mean 1095 h). fMRI data were acquired as they performed an engaging task and functional connectivity metrics were calculated from this data. These metrics were used as features in training machine learning algorithms. Specifically, we used adjacency matrices generated from graph measures, global efficiency, and local efficiency, as features. We computed functional connectivity with 132 ROIs as well as 32 network ROIs. STATISTICAL ANALYSIS USED Five machine learning models, such as logistic regression, SVM, decision tree, random forest, and gradient boosted tree, were trained to classify the two groups. Accuracy, precision, sensitivity, selectivity, area under the curve receiver operating characteristics curve were used as performance measures. RESULTS The graph measures were effective features, and tree-based algorithms such as decision tree, random forest, and gradient boosted tree yielded the best performance (test accuracy >84% with 132 ROIs) in classifying the two groups of meditators. CONCLUSIONS Our results support the hypothesis that long-term meditative practices alter brain functional connectivity networks even in nonmeditative contexts. Further, the use of adjacency matrices from graph theoretical measures of high-dimensional fMRI data yields a promising feature set for machine learning classifiers.
Collapse
Affiliation(s)
- Ashwini S. Savanth
- Department of Electronics and Communication Engineering, BNM Institute of Technology, Bangalore and Affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, India,Address for correspondence: Prof. Ashwini S. Savanth, Department of Electronics and Communication Engineering, BNM Institute of Technology, Banashankari 2nd Stage, Bengaluru - 560 070, Karnataka, India. E-mail:
| | - P. A. Vijaya
- Department of Electronics and Communication Engineering, BNM Institute of Technology, Bangalore and Affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, India
| | - Ajay Kumar Nair
- Department of Neurophysiology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Bindu M. Kutty
- Department of Neurophysiology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| |
Collapse
|
10
|
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:cells10123405. [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.
Collapse
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
- Correspondence: (M.M.E.); (S.B.C.)
| | - 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
- Correspondence: (M.M.E.); (S.B.C.)
| |
Collapse
|
11
|
Hu XS, Beard K, Sherbel MC, Nascimento TD, Petty S, Pantzlaff E, Schwitzer D, Kaciroti N, Maslowski E, Ashman LM, Feinberg SE, DaSilva AF. Brain Mechanisms of Virtual Reality Breathing Versus Traditional Mindful Breathing in Pain Modulation: Observational Functional Near-infrared Spectroscopy Study. J Med Internet Res 2021; 23:e27298. [PMID: 34636731 PMCID: PMC8548979 DOI: 10.2196/27298] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 07/24/2021] [Accepted: 07/27/2021] [Indexed: 01/19/2023] Open
Abstract
Background Pain is a complex experience that involves sensory-discriminative and cognitive-emotional neuronal processes. It has long been known across cultures that pain can be relieved by mindful breathing (MB). There is a common assumption that MB exerts its analgesic effect through interoception. Interoception refers to consciously refocusing the mind’s attention to the physical sensation of internal organ function. Objective In this study, we dissect the cortical analgesic processes by imaging the brains of healthy subjects exposed to traditional MB (TMB) and compare them with another group for which we augmented MB to an outside sensory experience via virtual reality breathing (VRB). Methods The VRB protocol involved in-house–developed virtual reality 3D lungs that synchronized with the participants’ breathing cycles in real time, providing them with an immersive visual-auditory exteroception of their breathing. Results We found that both breathing interventions led to a significant increase in pain thresholds after week-long practices, as measured by a thermal quantitative sensory test. However, the underlying analgesic brain mechanisms were opposite, as revealed by functional near-infrared spectroscopy data. In the TMB practice, the anterior prefrontal cortex uniquely modulated the premotor cortex. This increased its functional connection with the primary somatosensory cortex (S1), thereby facilitating the S1-based sensory-interoceptive processing of breathing but inhibiting its other role in sensory-discriminative pain processing. In contrast, virtual reality induced an immersive 3D exteroception with augmented visual-auditory cortical activations, which diminished the functional connection with the S1 and consequently weakened the pain processing function of the S1. Conclusions In summary, our study suggested two analgesic neuromechanisms of VRB and TMB practices—exteroception and interoception—that distinctively modulated the S1 processing of the ascending noxious inputs. This is in line with the concept of dualism (Yin and Yang).
Collapse
Affiliation(s)
- Xiao-Su Hu
- Headache & Orofacial Pain Effort Lab, Biologic and Materials Sciences & Prosthodontics Department, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Katherine Beard
- Headache & Orofacial Pain Effort Lab, Biologic and Materials Sciences & Prosthodontics Department, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Mary Catherine Sherbel
- Headache & Orofacial Pain Effort Lab, Biologic and Materials Sciences & Prosthodontics Department, University of Michigan School of Dentistry, Ann Arbor, MI, United States.,Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Thiago D Nascimento
- Headache & Orofacial Pain Effort Lab, Biologic and Materials Sciences & Prosthodontics Department, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Sean Petty
- 3D Lab, Digital Media Commons, University of Michigan, Ann Arbor, MI, United States
| | - Eddie Pantzlaff
- Headache & Orofacial Pain Effort Lab, Biologic and Materials Sciences & Prosthodontics Department, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - David Schwitzer
- Headache & Orofacial Pain Effort Lab, Biologic and Materials Sciences & Prosthodontics Department, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Niko Kaciroti
- Headache & Orofacial Pain Effort Lab, Biologic and Materials Sciences & Prosthodontics Department, University of Michigan School of Dentistry, Ann Arbor, MI, United States.,Center for Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, United States
| | | | - Lawrence M Ashman
- Headache & Orofacial Pain Effort Lab, Biologic and Materials Sciences & Prosthodontics Department, University of Michigan School of Dentistry, Ann Arbor, MI, United States.,Department of Oral & Maxillofacial Surgery, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Stephen E Feinberg
- Headache & Orofacial Pain Effort Lab, Biologic and Materials Sciences & Prosthodontics Department, University of Michigan School of Dentistry, Ann Arbor, MI, United States.,Department of Oral & Maxillofacial Surgery, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Alexandre F DaSilva
- Headache & Orofacial Pain Effort Lab, Biologic and Materials Sciences & Prosthodontics Department, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| |
Collapse
|
12
|
You B, Jackson T. Gray Matter Volume Differences Between More Versus Less Resilient Adults with Chronic Musculoskeletal Pain: A Voxel-based Morphology Study. Neuroscience 2021; 457:155-164. [PMID: 33484820 DOI: 10.1016/j.neuroscience.2021.01.019] [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: 06/24/2020] [Revised: 12/21/2020] [Accepted: 01/12/2021] [Indexed: 12/15/2022]
Abstract
Resilience, a personality construct that reflects capacities to persevere, maintain a positive outlook and/or thrive despite ongoing stressors, has emerged as an important focus of research on chronic pain (CP). Although behavior studies have found more resilient persons with CP experience less pain-related dysfunction than less resilient cohorts do, the presence and nature of associated brain structure differences has received scant attention. To address this gap, we examined gray matter volume (GMV) differences between more versus less resilient adults with chronic musculoskeletal pain. Participants (75 women, 43 men) were community-dwellers who reported ongoing musculoskeletal pain for at least three months. More (n = 57) and less (n = 61) resilient subgroups, respectively, were identified on the basis of scoring above and below median scores on two validated resilience questionnaires. Voxel-based morphology (VBM) undertaken to examine resilience subgroup differences in GMV indicated more resilient participants displayed significantly larger GMV in the (1) bilateral precuneus, (2) left superior and inferior parietal lobules, (3) orbital right middle frontal gyrus and medial right superior frontal gyrus, and (4) bilateral median cingulate and paracingulate gyri, even after controlling for subgroup differences on demographics and measures of pain-related distress. Together, results underscored the presence and nature of specific GMV differences underlying subjective reports of more versus less resilient responses to ongoing musculoskeletal pain.
Collapse
Affiliation(s)
- Beibei You
- Key Laboratory of Cognition and Personality, China Education Ministry, Southwest University, Chongqing 400715, China; Qiannan Preschool Education College, Guizhou 551300, China
| | - Todd Jackson
- Department of Psychology, University of Macau, Taipa 999078, Macau, SAR, China; Key Laboratory of Cognition and Personality, China Education Ministry, Southwest University, Chongqing 400715, China.
| |
Collapse
|
13
|
Sharma MK, Bhargav H, Kumar A, Digambhar V, Alka Mani TL. Mindfulness-Based Interventions: Potentials for Management of Internet Gaming Disorder. Int J Yoga 2021; 14:244-247. [PMID: 35017867 PMCID: PMC8691447 DOI: 10.4103/ijoy.ijoy_46_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/14/2021] [Accepted: 06/18/2021] [Indexed: 11/23/2022] Open
Abstract
Mindfulness-based interventions have been found to be efficacious among cases with substance addiction. Its role in Internet gaming disorder (IGD) has not been extensively studied. Prisma model approach was used to search for relevant articles from January 2009 to March 2021, to synthesize the role of empirical findings with mindfulness-based interventions to address various psychological domains in IGD. Eighteen relevant papers were included to understand the role of mindfulness-based interventions in IGD. Studies revealed the role of mindfulness-based interventions in the promotion of emotional regulation, metacognitive awareness, adaptive coping/cognition, reducing impulsivity, and craving for playing games. Studies also reveal neuro-biological basis for the effect of these interventions among users with IGD. Mindfulness-based interventions are potentially useful in IGD. It implicates the need to understand the empirical linkages within the root factors for a comprehensive understanding of the phenomenon of mindfulness-based treatment in IGD.
Collapse
Affiliation(s)
- Manoj Kumar Sharma
- Department of Clinical Psychology, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India,Address for correspondence: Dr. Manoj Kumar Sharma, Service for Healthy Use of Technology Clinic(SHUT Clinic),Department of Clinical Psychology, NIMHANS Centre for Well-Being, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru - 560 029, Karnataka, India. E-mail:
| | - Hemant Bhargav
- Department of Integrative Medicine, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
| | - Ajay Kumar
- Department of Clinical Psychology, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
| | - Vishnu Digambhar
- Department of Clinical Psychology, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
| | - TL Alka Mani
- Department of Yoga & Psychology, SVYASA Yoga University, SVYASA, Bengaluru, Karnataka, India
| |
Collapse
|