[Processing of optic flow information during self-motion].
For human beings and animals, the observer encounters the so-called optic flow during locomotion, the image motion pattern of the environment on the retina, which includes three basic modes of motion: rotation, expansion/contraction and translation. The analysis of optic flow information is vital for determining the direction and velocity of locomotion and has been a hotspot of the studies on visual information processing in recent years. In this article, some progresses in psychophysics and electrophysiology studies on optic flow are introduced and the neural mechanism of optic flow processing in mammalian brain is discussed.
Li
Bao-Wang
BW
Center for Brain and Cognitive Sciences, Laboratory of Visual Information Processing, Institute of Biophysics, Academia Sinica, Beijing 100101.
Xu
Ying
Y
Li
Bing
B
Diao
Yun-Cheng
YC
D000818:Animals; D002415:Cats; D002540:Cerebral Cortex / Q000166:cytology / Q000502:physiology*; D000882:Haplorhini; D006801:Humans; D009039:Motion Perception / Q000502:physiology*; D009949:Orientation / Q000502:physiology*