Transcranial direct current stimulation of the frontal eye fields during pro- and antisaccade tasks

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題名:	Transcranial direct current stimulation of the frontal eye fields during pro- and antisaccade tasks
作者:	馬杰仁;Kanai, Ryota;Muggleton, Neil;Walsh, Vincent
貢獻者:	生醫理工學院認知神經科學研究所
關鍵詞:	anti-saccade;frontal eye field (FEF);inhibition;Psychiatry;saccade;transcranial direct current stimulation (tDCS)
日期:	2012-10-04
上傳時間:	2026-04-23 14:46:40 (UTC+8)
出版者:	Switzerland: Frontiers Research Foundation
摘要:	摘要： Transcranial direct current stimulation (tDCS) has been successfully applied to cortical areas such as the motor cortex and visual cortex. In the present study, we examined whether tDCS can reach and selectively modulate the excitability of the frontal eye field (FEF). In order to assess potential effects of tDCS, we measured saccade latency, landing point, and its variability in a simple prosaccade task and in an antisaccade task. In the prosaccade task, we found that anodal tDCS shortened the latency of saccades to a contralateral visual cue. However, cathodal tDCS did not show a significant modulation of saccade latency. In the antisaccade task, on the other hand, we found that the latency for ipisilateral antisaccades was prolonged during the stimulation, whereas anodal stimulation did not modulate the latency of antisaccades. In addition, anodal tDCS reduced the erroneous saccades toward the contralateral visual cue. These results in the antisaccade task suggest that tDCS modulates the function of FEF to suppress reflexive saccades to the contralateral visual cue. Both in the prosaccade and antisaccade tasks, we did not find any effect of tDCS on saccade landing point or its variability. Our present study is the first to show effects of tDCS over FEF and opens the possibility of applying tDCS for studying the functions of FEF in oculomotor and attentional performance. 其他題名： Front Psychiatry 出版者： Switzerland: Frontiers Research Foundation 出版日期： 2012 出處： Frontiers in psychiatry, 2012, Vol.3, p.45 資源來源： PubMed Central Open Access 版權： Copyright © 2012 Kanai, Muggleton and Walsh. 2012 識別號： ISSN: 1664-0640 識別號： EISSN: 1664-0640 識別號： DOI: 10.3389/fpsyt.2012.00045 識別號： PMID: 22590461
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