PSYC 2390 Lecture Notes - Lecture 9: Visual Cortex, Simple Cell, Optic Nerve

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2390
• Professor: Lana Trick

Document Summary

Read stuff at the end for lecture 9 ** Disorders/problems of the retina: diabetic retinopathy. Blood vessels in eye that supply retina with nourishment, start to swell and leak slightly. They leak as well: speeds up the problem. Cause loaters and scar retina, can even cause detached retina. Laser photocoagulation: seal of new abnormal blood vessels. Pan retinal photocoagulation: deliberately burn bits of the retina so there is not so much blood demand, macular degeneration. Causes you to unable to see the thing you most want to see. Get little yellow lumps (drusen) growing between the epithelium and cones. Pushes cones away from the choroid (source of nourishment) and pigment epithelium so they die. Solution: laser photo coagulation, nutrition treatments, cone dystrophy (rare disorder) Progressive change that results or poorly nourished sells or tissues. Body doesn"t produce a certain protein resulting in a loss of cones.