PSYCH-101 Lecture Notes - Lecture 8: Binocular Disparity, Interposition, Retina
30 Oct 2020
School
Department
Course
Professor
Document Summary
Perceptual schema a mental representation or image of a stimulus to compare it with. Perception is an attempt to make sense of stimulus input, finding the best interpretation of sensory information that can be arrived at based on our knowledge and experience. Perceptual set a readiness to perceive a stimulus in a particular way based on expectations, motives, emotions, or beliefs. Brain translates information from retina (only in two dimensions length and width) into three-dimensional perceptions using two cues: monocular depth cues require only one eye. Use of light and shadow to create 3d image. Linear perception allows depth cues (two lines converging into the difference) Interposition, height, clarity, and relative size also contribute: binocular disparity require both eyes. Perceptions from both eyes are combined into one image (example 3d glasses) Convergence produced by feedback from muscles that turn eyes inward to view a near objects. Primary cue for perceiving motion is movement of stimulus across the retina.
