psychophysics
English Thesaurus
1. the branch of psychology concerned with quantitative relations between physical stimuli and their psychological effects (noun.cognition)
| domain member category | : | jnd, just-noticeable difference, |
| definition | : | (psychophysics) the difference between two stimuli that (under properly controlled experimental conditions) is detected as often as it is undetected (noun.cognition) |
| domain member category | : | fechner's law, weber-fechner law, |
| definition | : | (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 (noun.cognition) |
| domain member category | : | power law, stevens' law, stevens' power law, |
| definition | : | (psychophysics) the concept that the magnitude of a subjective sensation increases proportional to a power of the stimulus intensity (noun.cognition) |
| domain member category | : | weber's law, |
| definition | : | (psychophysics) the concept that a just-noticeable difference in a stimulus is proportional to the magnitude of the original stimulus (noun.cognition) |
| derivation | : | psychophysicist, |
| definition | : | a psychologist trained in psychophysics (noun.person) |
| derivation | : | psychophysicist, |
| definition | : | a psychologist trained in psychophysics (noun.person) |
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