Department of Psychology, Michigan State University, East Lansing, MI 48824, USA.
Neuropsychobiology. 2011;64(1):47-51. doi: 10.1159/000325075. Epub 2011 May 24.
The main purpose of this study was to evaluate whole-brain and hemispheric activation in normal adult volunteers to videos depicting positive and negative social encounters. There are few studies that have utilized dynamic social stimuli to evaluate brain activation.
Twenty young adults viewed videotaped vignettes during an functional magnetic resonance imaging procedure. The vignettes included positive and negative interaction scenes of social encounters.
Significant right greater than left activation for positive and negative conditions was found for the social interaction videos in the amygdaloid complex, the inferior frontal gyrus, the fusiform gyrus, and the temporal gyri (p < 0.0001).
These findings support the hypothesis that the regions of the right hemisphere are more active in the interpretation of social information processing than those regions in the left hemisphere. This study is a first step in understanding processing of dynamic stimuli using ecologically appropriate stimuli that approximate the real-time social processing that is appropriate for use with populations who experience significant social problems.
本研究的主要目的是评估正常成年志愿者在观看描述积极和消极社会交往的视频时的全脑和半球激活情况。利用动态社会刺激物来评估大脑激活的研究较少。
20 名年轻人在功能磁共振成像过程中观看了录像片段。这些片段包括积极和消极的社会交往场景。
在杏仁核复合体、下额前回、梭状回和颞叶（p < 0.0001）中，对正性和负性条件下的社会互动视频，发现右侧大于左侧的显著激活。
这些发现支持这样一种假设，即右半球区域在解释社会信息处理方面比左半球区域更为活跃。本研究是使用生态上合适的刺激物来理解动态刺激处理的第一步，这些刺激物接近实时的社会处理，适用于经历严重社会问题的人群。
