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认知与发展心理学论坛第八次讲座
作者: 认知与发展心理学研究室 ║ 日期: 2011/12/15 

报告题目:Heritability of local but not global biological motion processing in the human brain
报告人:王莹
报告时间:12月20日(周二) 13:30-14:30
报告地点:东楼D104教室
报告摘要
Biological motion enjoys privileged processing in the human visual system. Whether it is endowed by nature or shaped through postnatal experience remains controversial. Here we provide the first behavioral genetic evidence upon this issue using a classic twin design. We specifically aimed to examine the heritability of two fundamental components (i.e., the local motion and the global configuration) in support of biological motion perception. The local motion component was extracted by spatially scrambling intact point-light walkers, whereas the global component was obtained through embedding the point-light walkers in dynamic noises composed of pure local biological motion cues. Results revealed a reliable genetic contribution to individual variations in local but not global biological motion perception with the latter largely explained by environmental factors. Taken together, our findings point to an innate mechanism disposed to the processing of local biological motion cues. Men may learn to interpret the global configurations of biological motion, but their sensitivities to its inherent kinetics are mainly hardwired in the brain.

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