PSYC 213 Chapter 3: Perception

• School: McGill University
• Department: Psychology
• Course: PSYC 213
• Professor: Signy Sheldon

Document Summary

[reminder, highlighted in blue = overlap with lecture material, will most likely be on the exam] Light enters the eye through cornea [outer tissue of the eye] > pupil [small opening, black, controlled by iris which controls the pupil to regulate amount of light going in. Iris is a colored ring of muscles] > Lens [ transparent tissue, responsible for focusing light on the back of the retina] > retina [contains light receptors aka photoreceptors (cells that transduce light into a neural signal)] Photoreceptors are the most concentrated in the fovea [in the retina] When photoreceptors transduce light into a neural signal, > transmitted by neurons through optic nerve > brain. Primary visual cortex is in back of the brain; primarily responsible for basic processing of visual information. Primary visual cortex is retinotopic [information falling on adjacent areas of the retina are processed on adjacent areas of the cortex]