PSYC2274 Study Guide - Midterm Guide: Stereopsis, Strabismus, Horopter
Document Summary
Disparity requires neurons that receive input from both eyes, as it looks at the difference between the retinal images on both the left and the right eye. For instance, for a neuron to respond best to objects that have crossed disparity, it"s rf"s also have to be at different locations! Just like disparity, stereopsis needs neurons that receive input from both eyes - All v1 binocular neurons show this disparity tuning. Basically, it means that neurons with rf"s at corresponding locations in each eye are tuned for zero disparity. This means that they respond best to a stimulus that casts images to corresponding retinal locations (i. e. , is on the horopter). These degrees correspond to the difference in the angular positions of the receptive fields in the two eyes (relative to the fovea). Strabismus is when the two eyes are not alligned. This is more commonly known as a lazy eye, and can sometimes be corrected if caught early.
