期刊
BIOLOGICAL PSYCHOLOGY
卷 81, 期 2, 页码 110-117出版社
ELSEVIER
DOI: 10.1016/j.biopsycho.2009.03.003
关键词
Heart rate variability; RSA; Baroreflex; Cognition; Cognitive performance; Attention
资金
- German Research Foundation [DU 447/1-1]
- Spanish Commission of Science and Technology [SEJ 2006-09808]
- German Academic Exchange Service
- Spanish Ministry of Education and Science [D/07/13368]
The study investigated relationships between autonomic cardiovascular control and attentional performance. In 60 healthy subjects R-wave to pulse interval (RPI), respiratory sinus arrhythmia (RSA), heart rate variability in the mid-frequency (MF) band and sensitivity of the cardiac baroreflex (BRS) were assessed at rest and during a visual attention test. All parameters decreased markedly during test execution. Lower values of resting BRS predicted increased performance. On-task RPI, RSA, MF power and BRS were inversely related to attentional functioning, with RSA accounting for the largest portion of test score variance. The inverse association between resting BRS and performance is discussed as reflecting the bottom-up modulation of cerebral function by baroreceptor activity. The results concerning the on-task measures suggest that a pattern of cardiovascular adjustment including enhanced sympathetic and reduced vagal cardiovascular influences, as well as baroreflex inhibition may induce an adaptive state associated with improved cognitive-attentional functioning. (C) 2009 Elsevier B.V. All rights reserved.
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