psychophysicaladj.

1847 H. E. Lloyd & B. G. Babington tr. E. von Feuchtersleben Princ. Med. Psychol. iii. 151 Habit, likewise, greatly modifies the psycho-physical [Ger. psychisch-physischen] character.

1872 Westm. Rev. 42 188 Fechner's law..embodies and illustrates the law of relativity; but it has a psycho-physical value over and above this.

1886 E. Gurney et al. Phantasms of Living I. Introd. 43 Artificial displacements of the psycho-physical threshold.

1941 M. Cowley Let. 22 Feb. in Sel. Corr. K. Burke & M. Cowley (1988) 242 I'm more and more convinced of the hypothesis of psychophysical parallelism embodied in what is known as psychosomatic medicine.

1989 C. R. Legg Issues in Psychobiol. (BNC) 13 The psychophysical approach forces you to develop a model of how the system, in this instance the mechanisms of colour discrimination, might work.

2004 Q Sept. 167/1 There's more to yoga than munching lentils and assuming the lotus position—it's a psycho-physical discipline that can help with physical and mental well-being.

1932 B. Petermann Gestalt Theory ii. iii. 110 He commences with a general leading principle, that of psychophysical isomorphism. This is the assumption that a co-ordination exists between the domain of the experiences and that of the physiological processes..and that it is a co-ordination in the sense of congruence or isomorphism in regard to their systematic properties.

1942 W. Koehler Dynamics in Psychol. ii. 43 If an experience A may vary in a specific way, its correlate α must be capable of corresponding variations. When consistently applied, this point of view leads to the principle of psychophysical isomorphism.

1986 L. C. Robinson in T. J. Knapp & L. C. Robinson Approaches to Cognition 183 Although the theoretical notions of psychophysiological isomorphism have not survived, psychophysical isomorphism is a viable alternative.

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.

1888 Amer. Jrnl. Psychol. 1 310 This research..proves the extreme intricacy of the psychophysical method.

1936 C. A. Ruckmick Psychol. Feeling & Emotion xii. 376 It was her purpose by this sort of a modification of the classical psychophysical method of limits to establish a criterion of the comic element. A German dachshund might thus become gradually lengthened or shortened until the most comical effect was reached.

2000 Proc. National Acad. Sci. U.S.A. 97 8069/1 We have used simple psychophysical methods to determine the sites of color-generating mechanisms in the brain.

1890 J. S. Billings National Med. Dict. II. 404/2 Psychophysical movement, a hypothetical activity assumed by Fechner to explain the discrepancy between the increase of the stimulus and that of the sensation. This movement is between a hypothetical tertium quid and the stimulus on one side, and between it and the sensation on the other.

1891 Mind 16 396 He has..a sneaking fondness for the old-fashioned ‘soul’ in psychology, and..he is not going to let any new-fangled ideas of psycho-physical parallelism displace it.

1956 J. O. Urmson Philos. Anal. ii. vii. 110 One [metaphysician] advocates psycho-physical parallelism, the other interactionism.

1989 R. C. Rothschild Emerging Religion of Sci. vii. 122 Leibnitz..leaned toward a psychophysical parallelism according to which, although the mind and body pursue separate courses, they are always in keeping with each other.

1847 H. E. Lloyd & B. G. Babington tr. E. von Feuchtersleben Princ. Med. Psychol. v. 307 The so-called proximate cause of idiocy can..be no other than a psycho-physically [Ger. in psychisch-physischer Beziehung] impeded or depressed vital process.

1941 Jrnl. Criminal Law & Criminol. 32 366 We do not know exactly why one person psychophysically infantile becomes an exhibitionist and the other becomes a pedophile.

1992 Pixel Mar. 38/1 There may well be compositional forms of the two-dimensional image that would psycho-physically look like the physical model.