Meditation as an intervention for cognitive disturbances following total sleep deprivation.
Artigo
em Inglês
| IMSEAR
| ID: sea-147669
ABSTRACT
Background & 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.
Texto completo:
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Índice:
IMSEAR (Sudeste Asiático)
Idioma:
Inglês
Ano de publicação:
2012
Tipo de documento:
Artigo
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