Department of Psychiatry and Behavioral Sciences, University of California Davis, Sacramento, California, United States of America.
PLoS One. 2013 Aug 5;8(8):e71170. doi: 10.1371/journal.pone.0071170. Print 2013.
Autonomic nervous system activity is an important component of affective experience. We demonstrate in the rhesus monkey that both the sympathetic and parasympathetic branches of the autonomic nervous system respond differentially to the affective valence of passively viewed video stimuli. We recorded cardiac impedance and an electrocardiogram while adult macaques watched a series of 300 30-second videos that varied in their affective content. We found that sympathetic activity (as measured by cardiac pre-ejection period) increased and parasympathetic activity (as measured by respiratory sinus arrhythmia) decreased as video content changes from positive to negative. These findings parallel the relationship between autonomic nervous system responsivity and valence of stimuli in humans. Given the relationship between human cardiac physiology and affective processing, these findings suggest that macaque cardiac physiology may be an index of affect in nonverbal animals.
自主神经系统活动是情感体验的一个重要组成部分。我们在恒河猴身上证明，自主神经系统的交感和副交感分支对被动观看的视频刺激的情感效价有不同的反应。我们在成年猕猴观看一系列 300 个 30 秒的视频时记录了心脏阻抗和心电图，这些视频的情感内容各不相同。我们发现，随着视频内容从积极变为消极，交感活动（通过心脏射前期测量）增加，副交感活动（通过呼吸窦性心律失常测量）减少。这些发现与人类自主神经系统反应性和刺激效价之间的关系相一致。鉴于人类心脏生理学和情感处理之间的关系，这些发现表明，猕猴的心脏生理学可能是非言语动物情感的指标。
