Kamada T, Sato N, Miyake S, Kumashiro M, Monou H
Department of Ergonomics, University of Occupational and Environmental Health, Kitakyushu, Japan.
J Psychosom Res. 1992 Sep;36(6):543-51. doi: 10.1016/0022-3999(92)90039-5.
It has been reported that there are differences in autonomic balance between Type As and Type Bs. This study evaluated the sympathovagal interaction in Type A (N = 10) and Type B (N = 10) male students during mental arithmetic task in a solo and a competitive condition by the spectral component analysis of heart rate variability (HRV). The low-frequency (LF) component to high-frequency (HF) component ratio was significantly greater in Type As than in Type Bs, though no significant differences were found in task performance, heart rate change, and blood pressure between the two subject groups in both conditions. The present findings indicate that there was a significant difference in sympathovagal balance between Type As and Type Bs, and that Type As showed dominant sympathetic activity. The results suggest that the power spectral analysis of HRV, which is convenient and non-invasive, has enough sensitivity to discriminate differences in autonomic balance between Type A subjects and Type B subjects, not only during the solo and competitive task period but also during the resting period.
据报道，A型和B型人格者在自主神经平衡方面存在差异。本研究通过心率变异性（HRV）的频谱成分分析，评估了10名A型和10名B型男性学生在单独和竞争条件下进行心算任务时的交感神经与迷走神经相互作用。尽管在两种条件下，两组受试者在任务表现、心率变化和血压方面均未发现显著差异，但A型人格者的低频（LF）成分与高频（HF）成分之比显著高于B型人格者。目前的研究结果表明，A型和B型人格者在交感神经与迷走神经平衡方面存在显著差异，且A型人格者表现出占主导地位的交感神经活动。结果表明，HRV的功率谱分析方便且无创，不仅在单独和竞争任务期间，而且在静息期间，都具有足够的敏感性来区分A型和B型受试者在自主神经平衡方面的差异。
