Self-motion is the motion status when observer moves through the environment. The proper function of self-motion perception, also termed heading perception, is crucial to various human daily behaviors, such as walking, driving, chasing etc. In many circumstances, heading is accompanied with eye rotation. This pursuit eye movement induces great distortion on optic flow pattern perceived by our retina. Interestingly, observer can still accurately estimate heading direction, which suggests there is a eye movement compensation mechanism to discount the effects. Unfortunately, the neuronal mechanism of this eye movement compensation still remains unclear. By combining extracellular recording technique, psychophysical and neural computation methods, we will record neuronal activities from VIP and MST area while monkey is performing heading task. There are three different experimental conditions: real eye movement plus heading stimuli, simulated eye movement added on heading stimuli, eye movement only. By analyzing neuronal responses accordingly, we can determine whether extra-retinal information is necessary to eye movement compensation process or not. Furthermore, we will try to modeling this eye movement compensation process base on the neuronal responses collected under different experimental conditions. This resea
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