PSY280H5 Study Guide - Midterm Guide: Color Vision, Agnosia, Railways Act 1921
Document Summary
Acquired deficit in identifying and recognizing object even though vision remains intact. V4 area of brain (shape, color perception) Process in which visual input is assigned a meaningful interpretation available to our perceptual awareness. Top-down is a process in which we use our knowledge to influence how we perceive objects. Bottom-up is a process where physical stimuli influences how we perceive them. Perceptual organization is process by which multiple objects in the environment are grouped, allowing us to identify those objects in complex scenes. Two important processes in perceptual organization are grouping and segregation. Grouping allows us to infer which parts of an image go with which other parts. Segregation is the process where we distinguish two objects as being distinct. Perceiving which part of an image is considered the front and which is background of a particular scene. Edge completion is the perception of a physically absent but inferred edge. It allows us to complete a partially hidden object.
