PSYC 1000 Lecture Notes - Lecture 6: Detection Theory, Railways Act 1921, Habituation
20 Dec 2016
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Document Summary
Sensation: the process of detecting external events by sense organs and turning those stimuli into neural organs, sensory information is relayed to the brain where perception occurs. Perception: involves attending to, organizing, and interpreting stimuli that we sense. Transduction: when specialized receptors transform the physical energy of the outside world into neural impulses, turns raw sensations into info the brain can process. Orienting response: describes how we shift our attention to stimuli that signal a change in our sensory world. Sensory adaptation: the reduction of activity in sensory receptors with repeated exposure to a stimulus. Psychophysics created by william gustav fechner- the field of study that explores how physical energy such as light and sound and their intensity relate to psychological experience. Absolute threshold: the minimum amount of energy or quantity of a stimulus required for it to be reliably detected at least 50% of the time it is presented.
