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1922 R. H. Wheeler & T. D. Cutsforth in Amer. Jrnl. Psychol. 33 378 This meaning develops as a dual process consisting (1) of shifting contents which determine the presence or absence of meaning and whether the meaning shall be general or specific—a stimulus function; and (2) of the development of a motor attitude in the presence of these shifting contents which constitutes a recognition of this meaning—a response function.

1938 Brit. Patent 488,835 6/1 The rectified voltage output is a desired function of control signal intensity. This response function depends on the characteristics of the rectifier.

1975 D. G. Fink Electronics Engineers' Handbk. xxv. 25 The radar will respond with reduced gain to targets at other angles, delays, and frequencies. This response function can be expressed as a surface in a four-dimensional coordinate system.

1993 N. W. Smith Greek & Interbehavioral Psychol. viii. 156 A correlative factor with the stimulus function is the response function. They are necessarily interdependent, for they constitute functional relations of the interdependent stimulus object and responding mechanism.

2004 M. Rowan-Robinson Cosmol. (ed. 4) i. 7 (caption) The response function of the human eye, as a function of wavelength.