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n. (used with a sing. verb)
The branch of psychology that deals with the relationships between physical stimuli and sensory response.
psy′cho·phys′i·cist (-fĭz′ĭ-sĭst) n.
(Psychology) (functioning as singular) the branch of psychology concerned with the relationship between physical stimuli and the effects they produce in the mind
psy•cho•phys•ics(ˌsaɪ koʊˈfɪz ɪks)
n. (used with a sing. v.)
the branch of psychology that deals with the relationships between physical stimuli and resulting sensations and mental states.
psy`cho•phys′i•cal (-ɪ kəl) adj.
the branch of psychology that studies the relationships between physical stimuli and resulting sensations and mental states. — psychophysicist, n. — psychophysie, psychophysical, adj.See also: Psychology
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|Noun||1.||psychophysics - the branch of psychology concerned with quantitative relations between physical stimuli and their psychological effects|
jnd, just-noticeable difference - (psychophysics) the difference between two stimuli that (under properly controlled experimental conditions) is detected as often as it is undetected
Fechner's law, Weber-Fechner law - (psychophysics) the concept that the magnitude of a subjective sensation increases proportional to the logarithm of the stimulus intensity; based on early work by E. H. Weber
power law, Stevens' law, Stevens' power law - (psychophysics) the concept that the magnitude of a subjective sensation increases proportional to a power of the stimulus intensity
Weber's law - (psychophysics) the concept that a just-noticeable difference in a stimulus is proportional to the magnitude of the original stimulus; "Weber's law explains why you don't notice your headlights are on in the daytime"