LGN responses to natural stimuli cannot accurately be predicted based on receptive field model. Two nonlinear effects are adaptation to contrast and luminance. These effects have been modeled by a separable model of local luminance and contrast gain control. Contrast was computed within the so-called supressive field that surrounds the classical receptive field. Predicted responses better predict LGN responses to natural stimuli.

Keywords:

Neurobiological vision, LGN, natural stimuli, receptive field, adaptation, contrast gain control, luminance gain control, supressive field

Lecture #10825

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