PSYB51H3 Lecture Notes - Lecture 6: Efference Copy, Color Vision, Strabismus
Document Summary
The problem of univariance can be solved by having tricolor rods. Firing rate varies universally based on: wave lengths, and intensity of the light. It could affect how we see the world. Motion -> quickly look at something ugly, dangerous, interesting, etc. Move your eyes to points of interest so that you have a higher resolution. Eye movements are important to enhance our vision. Eye movements: six muscles are attached to each eye and are arranged in three pairs: > as soon as you rotate your head more than 5degrees, your eyes counter rotate (you don"t really notice that- vision stays stable). > passed 5 degrees, eyes make a quick motion, so a little disruption in vision (gaze is not stable) > for each dimension of rotation, you would need 2 muscles. Frontal eye fields & parietal cortex => look at diagram. Superior colliculus: structure in midbrain that plays important role in initiating and guiding eye movements.
