noun
difference threshold; differential limen
Technical term in psychophysics: the smallest detectable difference between two stimuli. Also called just noticeable difference (JND).
See also: 閾 (いき)
弁別閾は、刺激の強度によって変化する。
The difference threshold varies with the intensity of the stimulus.
心理物理学の実験で弁別閾を測定した。
We measured the differential limen in a psychophysics experiment.