Department of Kinesiology and Nutrition, University of Illinois at Chicago, 1919 West Taylor, 650 AHSB, Chicago, IL 60612, USA.
Hum Mov Sci. 2011 Dec;30(6):1052-61. doi: 10.1016/j.humov.2010.10.009. Epub 2011 Jul 13.
Individual difference measures have been shown to alter emotional arousal and emotional arousal alters force production during force control tasks. In the current study we examined whether individual differences in behavioral inhibition influence force control during emotional image viewing. Subjects who scored high and low in behavioral inhibition (BIS) produced force with visual feedback for 5 s. Feedback was then removed and replaced by a mutilation, attack, erotica, or neutral image for 6 s. The magnitude and direction of error in force production during image presentation was compared between groups and across image type. The high BIS group displayed a relative increase in force production during exposure to attack and mutilation images compared to the low BIS group. Bias scores (i.e., comparison of unpleasant image to neutral or pleasant image) further confirmed these findings by demonstrating a relative increase in force for the high BIS group during attack and mutilation images as compared to erotica images, whereas the low BIS group displayed the reverse effect. Together these findings extend the premise of action readiness to demonstrate that dispositional differences in behavioral inhibition interact with emotional state to alter force production.
个体差异测量已被证明会改变情绪唤醒，而情绪唤醒会改变力量控制任务中的力量产生。在当前的研究中，我们研究了行为抑制的个体差异是否会影响情绪图像观看期间的力量控制。在视觉反馈下，行为抑制得分高和低的受试者分别产生 5 秒的力量。然后，反馈被移除，并被一个残缺、攻击、色情或中性的图像替换 6 秒。在图像呈现期间，比较组间和图像类型间力量产生的误差幅度和方向。与低 BIS 组相比，高 BIS 组在暴露于攻击和残缺图像时显示出力量产生的相对增加。偏差分数（即，将不愉快的图像与中性或愉快的图像进行比较）通过在攻击和残缺图像中，高 BIS 组的力量相对增加，进一步证实了这些发现，而低 BIS 组则显示出相反的效果。这些发现共同扩展了行动准备的前提，以证明行为抑制的性格差异与情绪状态相互作用，从而改变力量产生。
