University of Geneva, Switzerland.
New York University, Germany; University of Konstanz, Germany; Leuphana University of Lueneburg, Germany.
Int J Psychophysiol. 2022 Jul;177:76-82. doi: 10.1016/j.ijpsycho.2022.04.010. Epub 2022 May 1.
This experiment tested whether personal choice vs. external assignment of task characteristics moderates the effect of incidental affective stimulation on effort-related cardiovascular response. We expected strong action shielding and low receptivity for incidental affective influences when participants could choose themselves the stimulus color of an easy memory task. By contrast, when the stimulus color was assigned, we expected weak action shielding and high receptivity. As expected, participants in the assigned color condition showed stronger cardiac pre-ejection period reactivity when exposed to sad music than when exposed to happy music during task performance. These music effects did not appear among participants who could personally choose the stimulus color. Our results replicate previous research by showing that personal choice leads to action shielding, whereas individuals remain receptive for affective influences during volition when task characteristics are assigned.
本实验旨在测试个人选择与任务特征的外部分配是否会调节偶然情感刺激对与努力相关的心血管反应的影响。我们预计，当参与者可以自行选择简单记忆任务的刺激颜色时，他们会强烈地屏蔽行动并对偶然的情感影响持低接受度。相反，当刺激颜色被分配时，我们预计会出现弱行动屏蔽和高接受度。正如预期的那样，在执行任务期间，当参与者被暴露在悲伤的音乐中时，与被暴露在快乐的音乐中相比，他们在被分配颜色的条件下表现出更强的心脏射前期反应性。在可以亲自选择刺激颜色的参与者中，没有出现这些音乐效应。我们的结果通过表明个人选择会导致行动屏蔽，而当任务特征被分配时，个人在意愿期间仍然对情感影响保持接受度，从而复制了先前的研究。
