事件相关电位
心理学
线索反应性
可视化快速呈现
食欲
反应性(心理学)
认知心理学
感知
神经科学
脑电图
医学
渴求
替代医学
病理
上瘾
作者
Anne Schienle,Judith Scheucher,Saša Zorjan
出处
期刊:Appetite
[Elsevier]
日期:2023-04-01
卷期号:183: 106481-106481
标识
DOI:10.1016/j.appet.2023.106481
摘要
Affective touch (gentle/slow brushing of the skin) can facilitate the allocation of processing resources to simultaneously present stimuli from different modalities. The present event-related potential (ERP) study investigated whether affective touch can enhance attention to visual cues of healthy food. Female participants (n = 117) were randomly assigned to three different groups that either received affective touch, nonaffective touch (fast brushing of the skin), or no touch during the presentation of pictures of healthy food (fruits and vegetables) and non-food. Electrocortical markers of motivated attention (frontal/parietal P300, late positive potential: LPP) and reported appetite for the depicted food items were compared between the three groups. Nonaffective touch was associated with reduced amplitudes of the frontal P300/LPP (300-1000 ms) for food pictures indexing reduced motivated attention. Affective touch did not influence food cue reactivity (P300/LPP, appetite). Effects of affective touch may be restricted to specific stimuli, e.g. those with social relevance.
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