Self-touch: Contact durations and point of touch of spontaneous facial self-touches differ depending on cognitive and emotional load
Self-touch: Contact durations and point of touch of spontaneous facial self-touches differ depending on cognitive and emotional load
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DOI：
10.1371/journal.pone.0213677
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发表时间：
2019-03-12
期刊：
影响因子：
3.7
通讯作者：
Grunwald, Martin
中科院分区：
文献类型：
--
作者：
Mueller, Stephanie Margarete;Martin, Sven;Grunwald, Martin
每个人每天都会自发地触摸自己的眼睛、脸颊、下巴和嘴巴。这些自发的面部自我触摸（sFST）是在很少或没有意识的情况下引起的，与手势和工具行为不同。自我触摸频率被证明受到负面情绪和注意力分散的影响，并可能参与调节情绪和工作记忆功能。然而，即使自我触摸的研究可以追溯到几十年前的基本方面，如sFST的时间进展或执行手和触摸面部区域的影响，尚未进行分析。第一次，本研究测量sFST的时间方面的毫秒使用加速度计和EMG。60名参与者在听分散注意力的厌恶性声音时完成了复杂触觉救济刺激的延迟记忆任务，触发了自发的自我触摸。我们发现，虽然双手使用同样频繁，具有相同的整体运动时间和接触持续时间，显着的影响发生在频率和接触持续时间的面部面积。因此，触摸点似乎有一些自己的相关性，独立的手是用来执行it.Results结果表明，不仅频率，而且触摸点和接触时间的认知和情感需求的影响。我们认为，研究sFST的基本特征将进一步了解认知聚焦和注意机制。
Every human being spontaneously touches its eyes, cheeks, chin and mouth manifold every day. These spontaneous facial self-touches (sFST) are elicited with little or no awareness and are distinct from gestures and instrumental acts. Self-touch frequency has been shown to be influenced by negative affect and attention distraction and may be involved in regulating emotion and working memory functions. Yet, even though self-touch research dates back several decades fundamental aspects, like the temporal progression of sFST or the effects of executing hand and touched face area, have not yet been analyzed. For the first time, the present study measured sFST temporal aspects to the millisecond using accelerometers and EMG. Spontaneous self-touch was triggered in sixty participants who completed a delayed memory task of complex haptic relief stimuli while listening to distracting aversive sounds. We found that while both hands were used equally often and with the same overall movement times and contact durations, significant effects occurred for face area in both frequency and contact durations. Ergo the point of touch seems to have some relevance of its own, independently of which hand is used to perform it. The results show that not only frequency but also the point of touch and contact durations are influenced by cognitive and emotional demands. We argue that investigating the fundamental characteristics of sFST will further the understanding of cognitive focusing and attentional mechanisms.