CAS PS 222 Chapter Notes - Chapter 7: Positron Emission Tomography, Hackney Carriage, Parietal Lobe
10 Aug 2018
School
Department
Course
Professor
Document Summary
Approach developed by j. j. gibson (began in late 1950s) Gibson felt that traditional laboratory research on perception was: too artificial - observers were not allowed to move their heads, unable to provide an explanation for how pilots used environmental information to land airplanes. His approach focuses on the moving observer and identifying information in the environment that the moving observer uses for perception. Optic array - structure created by the surfaces, textures, and contours in the environment: optic flow - appearance of objects as the observer moves past them. Gradient of flow - difference in flow as a function of distance from the observer. Closer things seem to be moving more, further things seem to be moving less. Focus of expansion - point in distance where there is no flow: optic flow. Self-produced information - flow is created by the movement of the observer. An observer"s movement provides information that the observer uses to guide further movement.
