Psychology 1000 Lecture Notes - Lecture 14: Visual Cortex, Color Blindness, Parallel Computing

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: L. Fazakas-Dehoog

Document Summary

Individuals missing one type of opponent system (lack of photo-pigment) In the visual cortex respond maximally to very specific information. Kittens raised with only vertical lines (or horizontal) for 5 hr/day - the rest of the day in darkness. 5 months of age 5 hr/day of normal environment and rest of the time in darkness. If raised in vertical striped environment: would only track vertical lines (not horizontal) If raised in horizontal striped environment: would only track horizontal lines (not vertical) Feature detectors in the brain did not fire to vertical lines. In humans born with cataracts who were deprived of normal visual stimuli. If cataracts were removed prior to age 10 = good vision. If not removed by age 10 = many problems with visual acuity. Would have vision of a newborn, unable to see fine details. Individuals born bkind who had their vision restored in adulthood did not recover vision for form or detail without touching the object.