ASTRO-110 Lecture Notes - Lecture 17: Visual Cortex, Receptive Field, Trichromacy
22 Sep 2020
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Simple cortical cells striate cortex neurons. Receptive fields that can be divided into antagonistic on and off regions and are unresponsive to diffuse light. The borders between on and off are straight lines instead of circles. Respond best to straight line stimuli and unresponsive to diffuse light. Not possible to divide receptive field to go on and off region. Binocular (respond to stimuli in either eye) Fires more robustly if stimuli are in both eyes instead of one. Display ocular dominance (more likely to respond to one eye) Primary visual cortex is organized into functional vertical columns same area of the retina. All of the neurons in the same vertical column respond to stimuli applied to the. Location of the various fundamental columns in the primary visual cortex is. The visual system"s response depends on stimuli in the receptive field and the larger influenced by location on the retina scene in which these stimuli are embedded.
