Han Shihui, Jiang Yi, Mao Lihua
Department of Psychology, Peking University, 5 Yiheyuan Road, Beijing 100871, PR China.
Neurosci Lett. 2006 May 1;398(1-2):18-21. doi: 10.1016/j.neulet.2005.12.069. Epub 2006 Jan 19.
The visual world consists of static pictures as well as of coherent visual events. The present study investigated neural substrates underlying the perception of coherence of visual events that evolves over time. We measured brain activity using functional magnetic resonance imaging (fMRI) while adults watched briefly presented static images that were extracted from movie clips depicting coherent visual events. The images were presented either in the coherent order as they were displayed in the movie clips or in a random order. Relative to the random order presentation condition, static images presented in the coherent order generated stronger activation in the right middle temporal cortex, the right posterior superior temporal cortex, and the right inferior postcentral gyrus. The results provide neuroimaging evidence for the dominance of the right hemisphere in perceiving coherent visual events.
视觉世界由静态图片以及连贯的视觉事件组成。本研究调查了随着时间推移而演变的视觉事件连贯性感知背后的神经基质。我们使用功能磁共振成像（fMRI）测量大脑活动，同时让成年人观看从描绘连贯视觉事件的电影片段中提取的短暂呈现的静态图像。这些图像要么按照它们在电影片段中显示的连贯顺序呈现，要么以随机顺序呈现。相对于随机顺序呈现条件，以连贯顺序呈现的静态图像在右侧颞中回、右侧颞上回后部和右侧中央后回下部产生了更强的激活。这些结果为右半球在感知连贯视觉事件中的主导地位提供了神经影像学证据。
