The role of superior temporal sulcus in the control of irrelevant emotional face processing: A transcranial direct current stimulation study

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Title:	The role of superior temporal sulcus in the control of irrelevant emotional face processing: A transcranial direct current stimulation study
Authors:	洪蘭;Tseng, Lin-Yuan;Tseng, Philip;Liang, Wei-Kuang;Hung, Daisy L.;Tzeng, Ovid J.L.;Muggleton, Neil G.;Juan, Chi-Hung
Contributors:	生醫理工學院認知神經科學研究所
Keywords:	Adult;Affectivity. Emotion;Anatomical correlates of behavior;Attention - physiology;Behavioral psychophysiology;Biological and medical sciences;Emotion;Emotions - physiology;Facial Expression;Facial expressions;Facial Recognition - physiology;Female;Frontal eye field;Fundamental and applied biological sciences. Psychology;Humans;Male;Personality. Affectivity;Photic Stimulation;Psychology. Psychoanalysis. Psychiatry;Psychology. Psychophysiology;Saccade curvatures;Saccade latency;Saccades - physiology;Superior temporal sulcus;tDCS;Temporal Lobe - physiology;Transcranial Direct Current Stimulation;Visual Fields - physiology;Young Adult
Date:	2014-11-01
Issue Date:	2026-04-23 14:45:54 (UTC+8)
Publisher:	Elsevier Ltd.;Kidlington: Elsevier Ltd
Abstract:	摘要： Emotional faces are often salient cues of threats or other important contexts, and may therefore have a large effect on cognitive processes of the visual environment. Indeed, many behavioral studies have demonstrated that emotional information can modulate visual attention and eye movements. The aim of the present study was to investigate (1) how irrelevant emotional face distractors affect saccadic behaviors and (2) whether such emotional effects reflect a specific neural mechanism or merely biased selective attention. We combined a visual search paradigm that incorporated manipulation of different types of distractor (fearful faces or scrambled faces) and delivered anodal transcranial direct current stimulation (tDCS) over the superior temporal sulcus and the frontal eye field to investigate the functional roles of these areas in processing facial expressions and eye movements. Our behavioral data suggest that irrelevant emotional distractors can modulate saccadic behaviors. The tDCS results showed that while rFEF played a more general role in controlling saccadic behavior, rSTS is mainly involved in facial expression processing. Furthermore, rSTS played a critical role in processing facial expressions even when such expressions were not relevant to the task goal, implying that facial expressions and processing may be automatic irrespective of the task goal. •A visual search task with fearful or scrambled faces as distractors was used.•Anodal tDCS was applied over superior temporal sulcus and frontal eye field.•tDCS over STS improved saccade latency only in the fearful distractor condition.•tDCS over FEF induced a general decrement in saccade latency across all conditions. 其他題名： Neuropsychologia 出版者： Kidlington: Elsevier Ltd 出版日期： 2014-11-01 出處： Neuropsychologia, 2014-11, Vol.64, p.124-133 版權： 2014 Elsevier Ltd 版權： 2015 INIST-CNRS 版權： Copyright © 2014 Elsevier Ltd. All rights reserved. 識別號： ISSN: 0028-3932 識別號： ISSN: 1873-3514 識別號： EISSN: 1873-3514 識別號： DOI: 10.1016/j.neuropsychologia.2014.09.015 識別號： PMID: 25261612 識別號： CODEN: NUPSA6
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