PSYC10300 Chapter Notes - Chapter 3: Color Vision, Synesthesia, Crossmodal
6 Mar 2013
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Sensation: sense organ"s response of external stimuli and transmission to brain. Perception: processing, organizing and interpreting what is sensed. About 50% of our cortex is dedicated to processing visual information. Transduction: the process through which stimuli reaching receptors are converted to neutral impulses: light transduction: process by which sensory neurons in the eye convert the light waves into neural impulses. Medium waves are yellow-green longer waves are red-orange. Psychophysics: the study of the relation between physical events and what people sense and perceive. Two phases of visual perception: organizing what is sensed recognizing what"s organized. Phase 1: organizing visual input: gestalt laws: How the brain organizes visual input and explain how we make sense of what we see. Without these laws, visual input seems chaotic. Law of proximity: marks that are near one another tend to be grouped together. Law of similarity: marks that look alike tend to be grouped together.
