PSYC 304 Lecture Notes - Lecture 1: Visual Acuity, Critical Period, Face Perception
3 Dec 2018
School
Department
Course
Professor
Document Summary
Visual development: age-related change in, acuity, sharpness or clarity of vision, based on the ability to see contrasts that represent lines, shapes, and shadows, your ability to resolve detail, 20/20 vision. At 20ft, can separate contours that are 1. 75 mm apart. You can see at 20ft what someone with difficult vision at 20ft: determining a baby"s acuity. Bad acuity: the baby would only see grey. Good acuity: the baby would be able to see the stripes: preferential looking. If babies reliably prefer looking at one over the other, you can infer that they can see a difference between the two. If they look identical, the baby will go back and forth. This test can infer a lot of things, as well as acuity. If babies can resolve the stripes, they will look longer at it. Two stimuli can"t differ in any way except the width of the stripes. One set of stripes cannot be brighter than the other: habituation.
