PSY 1101 Study Guide - Subjective Constancy, Compass, Retina
3
PSY 1101 Full Course Notes
Verified Note
3 documents
Document Summary
To represent the world, we must detect physical energy (a stimulus) from the environment and convert it into neural signals. When we select, organize, and interpret our sensations, the process is called perception. Bottom-up: analysis of the stimulus begins with the sense receptors and works up to the level of the brain and mind. Top-down: information processing guided by higher-level mental processes as we construct perceptions, drawing on our experience and expectations. Our sensory and perceptual processes work together to help us sort out complex images. Bottom-up processing enables our sensory systems to detect the lines, angles and colors that form the horses, rider and surrounding. Top-down processing enables us to perceive the faces in the forest. A frog feeds on flying insects; a male silkworm moth is sensitive to female sex- attractant odor, as we as human beings are sensitive to sound frequencies that represent the range of human voice. Bats and dolphins use sonar systems (echoing sound systems)
