PSC 131 Lecture Notes - Lecture 7: Law School Admission Test, Categorical Perception, Illusory Contours
Document Summary
I. lecture 7 middle vision (april 26, 2017: class summary, object recognition is hard, gestalt principles: the sum is more than the sum of the parts . If we actually trace it, there is incomplete edge extraction: we perceive it as continuous and encompassing contours. Illusory contours: a = triangle over circles; b = bar/cylinder; c = sphere; d = snake in water, none of those things exist; our brain makes them to perceive it. Structuralism perception is created by adding up sensations (wundt, 1879) Ex: edge models: gestalt approach the whole is more than the sum of the parts (wertheimer, 1912) To the left: assumed vertical red lines, horizontal blue lines. Summary (average) orientation: picking what is mostly there for a simple solution: we get an impression of the objects, people can extract the average out of a group of objects (vertical/horizontal)
