PSY 205 Lecture Notes - Lecture 4: Inattentional Blindness, Synesthesia, Visual Acuity

• School: Syracuse University
• Department: Psychology
• Course: PSY 205
• Professor: S.Houck

Document Summary

Sensation: the stimulation of a sense organ, just the physiological experience. Sensation sight: stimulation of our eyes, light rays hit our eye and information is processed. Much of our sensation/ subsequent perception begins with a visual trigger. Pupil: permits light to pass into the rear chamber of the eye. Iris: colored ring of muscle surrounding the pupil; prevents pupil contraction. Lens: transparent eye structure that focuses the light rays falling on the retina. Retina: neural tissue lining the inside back surface of the eye (sends info to the brain) Optic disk: hole in the retina where the optic nerve fibers exit the eye (blind spot) Optic chiasm: the point at which the optic nerve fibers from each eye cross over to opposite sides of the brain. Lens receives visual information that as it travels through the eye gets inverted; by the time the info hits the retina it is upside down; brain later re- inverts the image.