Functional connectivity changes in meditators and novices during yoga nidra practice.

Yoga nidra (YN) practice aims to induce a deeply relaxed state akin to sleep while maintaining heightened awareness. Despite the growing interest in its clinical applications, a comprehensive understanding of the underlying neural correlates of the practice of YN remains largely unexplored. In this fMRI investigation, we aim to discover the differences between wakeful resting states and states attained during YN practice. The study included individuals experienced in meditation and/or yogic practices, referred to as 'meditators' (n = 30), and novice controls (n = 31). The GLM analysis, based on audio instructions, demonstrated activation related to auditory cues without concurrent default mode network (DMN) deactivation. DMN seed based functional connectivity (FC) analysis revealed significant reductions in connectivity among meditators during YN as compared to controls. We did not find differences between the two groups during the pre and post resting state scans. Moreover, when DMN-FC was compared between the YN state and resting state, meditators showed distinct decoupling, whereas controls showed increased DMN-FC. Finally, participants exhibit a remarkable correlation between reduced DMN connectivity during YN and self-reported hours of cumulative meditation and yoga practice. Together, these results suggest a unique neural modulation of the DMN in meditators during YN which results in being restful yet aware, aligned with their subjective experience of the practice. The study deepens our understanding of the neural mechanisms of YN, revealing distinct DMN connectivity decoupling in meditators and its relationship with meditation and yoga experience. These findings have interdisciplinary implications for neuroscience, psychology, and yogic disciplines.

Examining cognitive sex differences in elite math intensive education: Preliminary evidence from a gender inequitable country.

BACKGROUND: It is unclear how cognitive control accounts for academic performance in math-intensive higher education and how it links to male over-representation in math-intensive education in gender-inequitable countries. PURPOSE: To examine the link between cognitive control and math-intensive education with a focus on male overrepresentation by using cognitive performance (task and construct level) to account for academic grades, and examining sex-specificity in cognitive performance (task and construct level), and using sex-differences in cognitive performance to account for academic grades. RESULTS: Four hierarchical regressions were used (two using task scores and two summed scores) with predictors entered in 3 blocks (working memory, flexibility, inhibition) to explain academic performance (bootstrapped sampling at 2000 samples; N = 39; males =69%). Task-level analysis (Corsi span & mental rotation) and construct-level analysis indicate working memory as a significant predictor of grades, model-fit improved for all-male sample. Results of analysis of variance using the performance of 183 students on four cognitive tasks (N = 183; males = 81%) showed high scores of working memory task and decision-making task among male participants; female scores were higher in a task assessing planning/cognitive flexibility and in the inhibition task. Differences in the two hierarchical regressions indicated that planning/cognitive flexibility accounts for the academic performance of the male-female mixed sample; however, working memory, most importantly decision-making related to risk and uncertainty, accounts for the academic performance of the all-male sample. CONCLUSION: Similar to developing countries, working memory and decision making might contribute to academic performance, potentially explaining male over-representation in math-intensive higher education. Academic grades might disproportionately rely on working memory and risky decision-making; equal emphasis and inclusive development of all components of cognitive control via academic curriculum and assessment might improve diversity in math-intensive higher education.

The use of integrative therapy based on Yoga and Ayurveda in the treatment of a high-risk case of COVID-19/SARS-CoV-2 with multiple comorbidities: a case report.

BACKGROUND: We report a high-risk case of a coronavirus disease 19 (COVID-19)-positive patient with comorbidities including diabetes mellitus (DM), hypertension (HTN), hypothyroidism and chronic kidney disease (CKD), treated successfully using an integrative therapy plan based on Ayurveda and Yoga, along with government-mandated compulsory modern western medicine (MWM) treatment. Recently, some evidence has been emerging on the use of Ayurveda for treatment of COVID-19. The classical texts of Ayurvedic medicine such as Charaka Samhita and Sushruta Samhita contain descriptions of pandemics of similar proportions and describe them as Janapadoddhvansa, meaning the destruction of communities, along with their causes and treatment. CASE PRESENTATION: The case reported herein is a 55-year-old man from Delhi, India, with confirmed (tested) COVID-19, who first took MWM for 7 days before seeking integrative therapy. The patient has comorbidities including DM, HTN, hypothyroidism and CKD and had developed symptoms including fever (which was resolved by the time integrative therapy was started), sore throat, dry cough, body aches, weakness, bad taste and smell, and heaviness in the abdomen. Based on the patient's symptoms and comorbidities, a treatment plan including Ayurvedic medicines, Yoga protocol, dietary recommendations and lifestyle modifications was prescribed by a registered Ayurveda doctor and a Yoga consultant. The patient started experiencing improvement in all the symptoms within 2 days after starting the treatment; he reported approximately [Formula: see text] relief from the symptoms after 5 days, and almost complete relief within 9 days. Also, the blood sugar levels (both fasting blood sugar [FBS] and postprandial blood sugar [PPBS]) exhibited significant improvement after 5 days, and decreased to within the normal range within 12 days. Besides relief in symptoms, the patient's real-time reverse transcription polymerase chain reaction (RT-PCR) test done on the 19th day returned negative results. CONCLUSIONS: Integrative therapy was found to be effective in mitigating the symptoms of COVID-19 in this patient with multiple comorbidities. Moreover, a significant improvement in blood sugar levels (not under control with modern medicine) was also achieved. Integrative therapy based on the classical texts of Ayurveda and Yoga may offer a promising and scalable treatment option for COVID-19 patients. A case series or a suitably designed randomized controlled trial is needed to assess its efficacy.