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Central versus peripheral vision: computational roles and experimental data - Zhaoping Li

Stanford Neurosciences Institute, Zhaoping Li
December 15, 2017 - 11:30am
Math Corner (Building 380), Room 381-U

Central versus peripheral vision:  computational roles and experimental data 

Zhaoping Li

Department of Psychology, UCL (University College London)


Eye movements bring attended visual inputs to the central visual field for further processing.  Hence central and peripheral vision should have different functional roles, such that peripheral vision is more associated with selecting which visual location is attended next while central vision is more for decoding scene properties from the selected inputs within the attentional spotlight. Peripheral vision's role in visual selection is likely to compromise its ability in visual decoding. I use ambiguous perception of dichoptic stimuli to infer that there is a difference between the central and peripheral vision in the top-down feedback from higher brain centers to the primary visual cortex for the purpose of analysis by synthesis.  A conceptual network for feedforward and feedback computations will be introduced to illustrate this central-peripheral difference. These findings will be related to previous behavioral and neural data, and tested by new data

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Vision Lunch (Psychology Department)
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