PSYB51H3 Lecture Notes - Lecture 6: Saccade, Retina, Binocular Disparity
Document Summary
6 muscles controlled by cranial nerves: six muscles are attached to each eye and are arranged in three pairs. Superior colliculus: structure in midbrain that plays important role in guiding eye movements. Different eye movements moving object on the fovea. Smooth pursuit: eyes move smoothly to follow. Functions keep object of interest stable and. Saccade: rapid movement of eyes that change fixation from one object or location to another. Functions rotate fovea to objects of interest, move quick to reduce travel time during which vision is blurred. Yarbus (1967): scanpaths revela intentions and interests. False motion & retinal smear during saccades. Vergence eye movements: type of eye movement in which two eyes move in opposite directions (deliberate) Fixational eye movements, microsaccades: 2 or more to keep the retinal image stable during (self-) motion. Spatial constancy: the task to discriminate motion across the retina that is dues to eye movement vs. object movements.
