Okada Takashi, Sato Wataru, Toichi Motomi
Department of Neuropsychiatry, Faculty of Medicine, Kyoto University, Japan.
Brain Cogn. 2006 Nov;62(2):128-33. doi: 10.1016/j.bandc.2006.04.001. Epub 2006 May 30.
Recent findings suggest a right hemispheric dominance in gaze-triggered shifts of attention. The aim of this study was to clarify the dominant hemisphere in the gaze processing that mediates attentional shift. A target localization task, with preceding non-predicative gaze cues presented to each visual field, was undertaken by 44 healthy subjects, measuring reaction time (RT). A face identification task was also given to determine hemispheric dominance in face processing for each subject. RT differences between valid and invalid cues were larger when presented in the left rather than the right visual field. This held true regardless of individual hemispheric dominance in face processing. Together, these results indicate right hemispheric dominance in gaze-triggered reflexive shifts of attention in normal healthy subjects.
最近的研究结果表明，在由注视引发的注意力转移中，右脑半球占主导地位。本研究的目的是阐明在介导注意力转移的注视处理过程中占主导地位的半球。44名健康受试者进行了一项目标定位任务，每个视野会呈现先前的非预测性注视线索，并测量反应时间（RT）。还进行了一项面部识别任务，以确定每个受试者在面部处理中的半球优势。当线索呈现在左视野而非右视野时，有效线索和无效线索之间的反应时间差异更大。无论个体在面部处理中的半球优势如何，都是如此。总之，这些结果表明，在正常健康受试者中，由注视引发的反射性注意力转移中，右脑半球占主导地位。
