U.S. Army Medical Research Directorate-West.
Department of Applied Physiology and Kinesiology.
Emotion. 2022 Apr;22(3):430-443. doi: 10.1037/emo0000940. Epub 2021 Mar 18.
Motor responses are more efficient when there is a match (or congruency) between the motivational properties of an emotional state and the distance altering characteristics of the movement being executed to the emotion-eliciting stimulus. However, the role of spatial context in shaping motivational orientations to approach and avoid, particularly during whole-body movement tasks, remains less understood. We sought to narrow this knowledge gap by investigating whether an emotion (fear) relived from a previous experience affected movement initiation based on whether motor responses were implicitly coded as approach (i.e., incongruent) or avoidance (i.e., congruent) as per the location of the imagined threat stimulus. Participants ( = 29) completed a tone-initiated forward gait initiation task after recalling a previous fearful experience in which the stimulus from their memory was located either in front (incongruent) or behind (congruent) them. Facilitation versus inhibition of motor responses was indexed by reaction time (RT), displacement and velocity of postural movements prior to stepping, and step kinematics. Analyses revealed that participants initiating forward gait after recalling a fearful experience in which the fearful stimulus was congruent to the movement direction expedited RTs, greater displacement and velocity of anticipatory postural responses, and greater step length and velocity. Results provide support for the theoretical position that motivational orientations to approach and avoid are contextualized based on affective congruency, which includes the spatial orientation of real or imagined emotional stimuli. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
当情绪状态的激励属性与执行到情绪诱发刺激的运动的距离改变特征相匹配(或一致)时,运动反应更加有效。然而,在塑造趋近和回避的动机取向方面,空间背景的作用,特别是在全身运动任务中,仍然知之甚少。我们试图通过研究先前经验中产生的情绪(恐惧)是否会根据运动反应是否根据想象中的威胁刺激的位置被隐含地编码为趋近(即不一致)或回避(即一致),从而影响运动启动,来缩小这一知识差距。参与者(n=29)在回忆起以前的恐惧经历后完成了一个由音调启动的向前步态启动任务,在该经历中,他们记忆中的刺激位于他们的前方(不一致)或后方(一致)。运动反应的促进与抑制通过反应时间(RT)、姿势运动的位移和速度以及步行动力学来衡量。分析表明,参与者在回忆起与运动方向一致的恐惧刺激的恐惧经历后,启动向前步态会加快 RT,增加预期姿势反应的位移和速度,并增加步长和速度。结果为理论立场提供了支持,即趋近和回避的动机取向是基于情感一致性来情境化的,包括真实或想象的情绪刺激的空间方向。(PsycInfo 数据库记录(c)2022 APA,保留所有权利)。