We examined the moderating influence of dispositional behavioral inhibition system and behavioral activation system (BAS) sensitivities, Negative Affect, and Positive Affect on the relationship between a small moving vs. static facial image and autonomic responses when viewing/listening to news messages read by a newscaster among 36 young adults. Autonomic parameters measured were respiratory sinus arrhythmia (RSA), low-frequency (LF) component of heart rate variability (HRV), electrodermal activity, and pulse transit time (PTT). The results showed that dispositional BAS sensitivity, particularly BAS Fun Seeking, and Negative Affect interacted with facial image motion in predicting autonomic nervous system activity. A moving facial image was related to lower RSA and LF component of HRV and shorter PTTs as compared to a static facial image among high BAS individuals. Even a small talking facial image may contribute to sustained attentional engagement among high BAS individuals, given that the BAS directs attention toward the positive cue and a moving social stimulus may act as a positive incentive for high BAS individuals.

中文翻译：

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小说话面部图像对自主神经活动的影响：倾向性 BIS 和 BAS 敏感性和情绪的调节影响

我们研究了性格行为抑制系统和行为激活系统 (BAS) 敏感性、负面影响和正面影响对观看/收听新闻阅读时的小型移动与静态面部图像与自主反应之间关系的调节影响。 36 名年轻人中的新闻播音员。测量的自主神经参数包括呼吸性窦性心律失常 (RSA)、心率变异性 (HRV) 的低频 (LF) 分量、皮肤电活动和脉搏传导时间 (PTT)。结果表明，在预测自主神经系统活动时，倾向性 BAS 敏感性，尤其是 BAS 寻趣和负面影响与面部图像运动相互作用。与高 BAS 个体的静态面部图像相比，运动面部图像与 HRV 的较低 RSA 和 LF 分量以及较短的 PTT 相关。考虑到 BAS 将注意力引导到积极提示上，并且移动的社会刺激可以作为对高 BAS 个体的积极激励，即使是一个很小的谈话面部图像也可能有助于高 BAS 个体之间的持续注意力参与。