PSY280H1 Lecture Notes - Optical Flow, Motion Sickness, Akinetopsia
13
PSY280H1 Full Course Notes
Verified Note
13 documents
Document Summary
Motion grabs attention: stimulates parasol ganglion cells (sensitive) triggers shift of attention/eye-movements in the superior colliculus (automatic) Motion provides information about 3d shape of an object: structure from motion. Motion provides figure-ground separation: based on: law of common fate objects move in the similar direction are grouped together, not 100% associated w/ figure ground separation. Motion allows interaction with the environment: catching a baseball. Self-induced motion: assists in locomotion through the environment, provides information about the relative depth of objects (motion parallax, self-induced motion: visual vs. vestibular information. Vestibular system a set of 5 organs located in each inner ear, sense head motion and orientation with respect to gravity. Motion sickness from conflicting signals from visual systems and vestibular system. Visual system moving, but vestibular system not moving b/c not self induced motion: motion parallax moving in parallel to the plane of depth.
