PS263 Study Guide - Midterm Guide: Inattentional Blindness, Binocular Rivalry, Change Blindness
Document Summary
Not purely bottom-up, whole vs. sum of parts. Uses the where and what pathways for v1. Object perception is a difficult task; our visual system must identify objects that are partially hidden. 2d retinal image is ambiguous and could have been caused by objects at a different angle or distance. Grouping is often ambiguous, you can"t distinguish between objects unless you can group them out. Perceptual grouping (little parts of the image, together form something bigger) Perceptual segregation (break up image into littler parts: figure vs background) Reversible image of vase/face- figure is in front of ground. The figure owns the contour separating figure from ground, ground as unformed material that extends behind figure. The figure is much more memorable than the background. Structuralism: add up perception of each bit of scene to get perception of whole scene. Gestalt: perception of one part of stimulus depends on the nature of other parts of stimulus.
