PSY100Y5 Chapter Notes - Chapter 4: Brainstem, Saccade, Oval Window
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PSY100Y5 Full Course Notes
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Sensation involves the absorption of energy, such as light or sound waves by sensory organs such as the ears and eyes: perception is the selection, organization, and interpretation of sensory input. Perception involves organizing and translating sensory input into something meaningful, su(cid:272)h as (cid:455)ou(cid:396) (cid:271)est f(cid:396)ie(cid:374)d"s fa(cid:272)e o(cid:396) othe(cid:396) environmental stimuli. Psychophysics: basic concepts and issues: psychophysics is the study of how physical stimuli are translated into psychological experience. Thresholds: looking for limits: sensation begins with a stimulus, any detectable input from the environment, what counts as detectable depends on who or what is doing the detecting. I(cid:373)pli(cid:272)it i(cid:374) fe(cid:272)h(cid:374)e(cid:396)"s (cid:395)uestio(cid:374) is (cid:272)o(cid:374)(cid:272)ept (cid:272)e(cid:374)t(cid:396)al to ps(cid:455)(cid:272)hoph(cid:455)si(cid:272)s: the threshold: a threshold is a dividing point between energy levels that do and do not have a detectable effect. For example, hardware stores sell a gadget with a photocell that automatically turns a lamp on when a room gets dark.
