Meditation as an intervention for cognitive disturbances following total sleep deprivation.

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dc.contributor.authorChatterjee, Abhirup
dc.contributor.authorRay, Koushik
dc.contributor.authorPanjwani, Usha
dc.contributor.authorThakur, Lalan
dc.contributor.authorAnand, Jag Parvesh
dc.date.accessioned2013-08-02T06:25:46Z
dc.date.available2013-08-02T06:25:46Z
dc.date.issued2012-12
dc.description.abstractBackground & objectives: Decline in cognitive functions is a major challenge for professionals during sustained wakefulness. We used middle latency response (MLR), event related potentials P300-ERP and contingent negative variation (CNV) and Raven’s Advanced Progressive Matrices (RAPM) - a standard neuropsychological test were used to evaluate cognitive impairment after total sleep deprivation (SD); and to study the impact of meditation as an intervention for this impairment. Methods: Healthy male volunteers (n=10) drawn randomly from the Indian Army participated in a 6-night study design executed before and after two months of meditation practice: night 1–adaptation, night 2–baseline, night 3–24 h SD, night 4–recovery sleep, night 5–24 h SD after 60 days meditation, night 6–recovery sleep after SD. A 36 h SD was obtained by keeping the subject awake for 12 h after 24 h SD. Results: The latency and amplitude of P300 increased after 36 h SD. Amplitudes and latencies of both early and late CNV increased after 24 and 36 h SD, indicating deficient orientation and impairment of attention and perception. Prolonged CNV reaction time after 36 h SD manifested deficient motor response following second (imperative) stimulus. Latency of MLR Na registered significant change following 36 h SD compared to baseline (P<0.01) and recovery (P<0.05). RAPM score showed significant decrease after 36 h of wakefulness indicating impaired analytical ability and difficulty in problem solving. None of these parameters showed any significant alteration after SD, following meditation practice. Interpretation & conclusions: The present results showed that SD impaired cognitive performance to graded extents significantly, but this deterioration could be improved to a significant extent using meditation.en_US
dc.identifier.citationChatterjee Abhirup, Ray Koushik, Panjwani Usha, Thakur Lalan, Anand Jag Parvesh. Meditation as an intervention for cognitive disturbances following total sleep deprivation. Indian Journal of Medical Research. 2012 Dec; 136(6): 1031-1038.en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/147669
dc.language.isoenen_US
dc.source.urihttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3612308/?report=classicen_US
dc.subjectCognitive functionsen_US
dc.subjectcontingent negative variationen_US
dc.subjectevent related potentialsen_US
dc.subjectmiddle latency responseen_US
dc.subjectP300en_US
dc.subjectRaven’s Advanced Progressive Matricesen_US
dc.subjectreaction timeen_US
dc.subjectsleep deprivationen_US
dc.titleMeditation as an intervention for cognitive disturbances following total sleep deprivation.en_US
dc.typeArticleen_US
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