| 单词 | psychophysical law |
| 释义 | > as lemmaspsychophysical law psychophysical law n. [after German psychophysisches Gesetz (G. T. Fechner 1858: see psychophysic adj.)] a law expressing the relationship between a change of intensity in a sensory stimulus and the resulting change in the intensity of the sensation; cf. Fechner n. ΚΠ 1872 Westm. Rev. 42 177 As a result of experiments according to all these three methods, Fechner arrives at what he calls a general ‘psycho-physical law’, and also ‘Weber's law’. 1927 L. Berman Relig. called Behaviorism 92 This conception has enabled Köhler to deduce the famous psychophysical law of Weber which asserts that when a present stimulus is perceived as just different from a past stimulus of like nature, the value of the past stimulus has been increased or decreased by an amount which represents a constant fraction or percentage of it. 1999 Philos. Sci. 66 375 Once functional organization and the physical and psychophysical laws are fixed, all facts about consciousness are fixed. < as lemmas |
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