PSYC 213 Lecture Notes - Lecture 4: Stage Illusions, Color Vision, Synesthesia
25 Dec 2018
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Document Summary
Visual system: vision is our dominant sense, most researched and best understood. Early visual processing: sensation, eyes and optic nerve: 1. Light waves enter the eye, focused on the retina, a thin layer of tissue at the back of the eye, reversed projection by the cornea onto the retina: 2. Photoreceptors in the retina convert light to electrical signals: 3. Electrical signal is sent to bipolar cells and then to ganglion cells: 4. Signals exit through optic nerve to the brain from the ganglion cells. Early to later visual processing through optic nerve: each eye"s optic nerve transmits information to both hemispheres, left visual field is perceived via right hemisphere, right visual filed is perceived via left hemisphere. Subjective reports of blindsight individuals and laboratory measures: threshold = limen, below threshold = subliminal, subliminal effects often involve semantics (the study of meaning)
