中科院研究生院陈霖实验室发表的SCIENCE文章

Contributions of the Visual Ventral Pathway to Long-Range Apparent Motion

Yan Zhuo,1 Tian Gang Zhou,1 Heng Yi Rao,1 Jiong Jiong Wang,1 Ming Meng,1 Min

g Chen,2 Cheng Zhou,2 Lin Chen1*

Objects displaced intermittently across the visual field will nonetheless gi

ve an illusion of continuous motion [called apparent motion (AM)] under many
 common conditions. It is believed that form perception is of minor importan

ce in determining AM, and that AM is mediated by motion-sensitive areas in t

he "where" pathway of the cortex. However, form and motion typically interac

t in specific ways when natural objects move through the environment. We use

d functional magnetic resonance imaging to measure cortical activation to lo

ng-range AM, compared to short-range AM and flicker, while we varied stabili

ty of structural differences between forms. Long-range AM activated the ante

rior-temporal lobe in the visual ventral pathway, and the response varied ac

cording to the form stability. The results suggest that long-range AM is ass

ociated with neural systems for form perception.

1 Key Laboratory of Cognitive Science, Graduate School, Institute of Biophys

ics, Chinese Academy of Sciences, 15 Datun Road, 100101 Beijing, China.

2 Beijing Hospital, 1 DaiHua Road, 100730 Beijing, China.



*   To whom correspondence should be addressed. E-mail: lchen@public2.bta.ne

t.cn

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