触觉运动注意诱导声音感觉减弱。

Tactile motor attention induces sensory attenuation for sounds.

机构信息

Institute for Experimental Psychology, Heinrich Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany.

Institute for Experimental Psychology, Heinrich Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany.

出版信息

Conscious Cogn. 2022 Sep;104:103386. doi: 10.1016/j.concog.2022.103386. Epub 2022 Aug 8.

Abstract

Sensory events appear reduced in intensity when we actively produce them. Here, we investigated sensory attenuation in a virtual reality setup that allowed us to manipulate the time of tactile feedback when pressing a virtual button. We asked whether tactile motor attention might shift to the tactile location that makes contact with the button. In experiment one, we found that a tactile impulse was perceived as more intense when button pressing. In a second experiment, participants pushed a button and estimated the intensity of sounds. We found sensory attenuation for sounds only when tactile feedback was provided at the time the movement goal was reached. These data indicate that attentional prioritization for the tactile modality during a goal-directed hand movement might lead to a transient reduction in sensitivity in other modalities, resulting in sensory attenuation for sounds.

摘要

当我们主动产生感觉事件时,它们的强度似乎会降低。在这里,我们在虚拟现实设置中研究了感觉衰减,该设置允许我们在按下虚拟按钮时操纵触觉反馈的时间。我们想知道触觉运动注意力是否会转移到与按钮接触的触觉位置。在实验一中,我们发现按钮按下时,触觉脉冲被感知为更强烈。在第二项实验中,参与者按下按钮并估计声音的强度。我们发现只有在运动目标达到时提供触觉反馈时,声音才会出现感觉衰减。这些数据表明,在手的目标导向运动期间对触觉模式的注意力优先化可能会导致其他模式的敏感性短暂降低,从而导致声音的感觉衰减。

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