Psychology 1000 Lecture Notes - Lecture 5: Principles Of Grouping, Gestalt Psychology, Optical Illusion

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Laura Fazakas-de Hoog

Document Summary

Individuals missing one types of opponent system (lack of photo-pigment: most common deficit is the red-green deficit, 7% male and 1% female, dichromate: only see two colour systems, monochromatic: only see back and white. Feature detector neurons: located in the visual cortex feature detector neurons respond maximally to very specific information: example: only vertical or diagonal lines. Parallel processing: many systems simultaneously analyzing and integrating information. Deprivation experiment in kittens: kittens raised with only vertical lines (or only horizontal lines) for 5 hours per day, 5 months of age 5 hours per day and the rest of time in darkness. If raised in vertical striped environment: would only track vertical lines not horizontal. Feature detectors in the brain did not fire to vertical lines. In humans born with cataracts who were deprived of normal visual stimuli. If not removed before age 10, many problems with visual acuity remained. If cataracts were removed prior to age 10, good vision.