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PSYCHOPHYSICS
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I. (noun)
Sense 1
Meaning:
The branch of psychology concerned with quantitative relations between physical stimuli and their psychological effects
Classified under:
Nouns denoting cognitive processes and contents
Hypernyms ("psychophysics" is a kind of...):
experimental psychology; psychonomics (the branch of psychology that uses experimental methods to study psychological issues)
Domain member category:
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)
Derivation:
psychophysicist (a psychologist trained in psychophysics)
