PSYA01H3 Chapter Notes - Chapter 4: Parallel Computing, Absolute Threshold, Subliminal Stimuli
Document Summary
Sensation: process of detecting external events by sense organs and turning these events into neutral signals. o o. Sensory lvl: sound of someones voice is noise, sight of a person is a combo of color and motion. Sensory receptors: structures that respond to external stimuli are stimulated. These are inside the eye, over the tongue and nasal cavity. Perception: involves attending to, organizing and interpreting stimuli that we sense. o. Recognizing sounds as a human voice, understanding colors, shape and motion. Transduction: process in which physical or chemical stimulation is converted into a nerve impulse that is relayed to the brain. o. Sensory adaptation: reduction of activity in sensory receptors with repeated exposure to as stimulus o. Ex) walking out of a dark theatre and into the bright, main lobby. Psychophysics: the field of study that explores how physical energy such as light and sound and their intensity relate to psychological experience. o.
