Psychological determinants for short-term heart ratevariability

本文测定了69名20-49岁健康男性受试者在安静和精神应激状态下的心率变异性（HRV），并探讨了自主神经活动与个性的关系。人格调查采用NEO-FFI（五因素量表），该量表探讨了五个人格因素：神经质（N），外向性（E），开放性（O），可接受性（A）和尽责性（C）。多元回归分析表明，静息状态下HRV的交感神经指标（lnLF）与O因子呈正相关，与A因子呈负相关。另一方面，在精神应激时，lnLF与E因子相关。人格因素对lnLF的效应量（β）约为0.25-0.40，与年龄效应相当。

Heart rate variability (HRV) of sixty-nine healthy male subjects (aged 20-49) were measured during rest and mental stress with special reference to the relationship between autonomic activity and personality. The personality was surveyed by a NEO-FFI (Five-Factor Inventory) which explores five personality factors ; Neuroticism (N), Extraversion (E), Openness (O), Agreeableness (A) and Conscientiousness (C). A multiple regression analysis indicated that a sympathetic indicatior of HRV (lnLF) during rest positively correlated with O-factor and negatively correlated with A-factor. On the other hand, lnLF during mental stress was associated with E-factor. The effect-sizes (β) of the personality fators on lnLF were approximated to be 0.25-0.40 which were equal to the effect of age.