Discrimination and Generalization on a Dimension of Stimulus Difference

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Science  05 Oct 1962:
Vol. 138, Issue 3536, pp. 29-31
DOI: 10.1126/science.138.3536.29


Four pigeons were trained to peck at one key when two identical stimuli were displayed, and at another key when the stimuli were displayed with a wavelength difference of 40 mµ. With stimulus combinations ranging in difference from 0 to 70 mµ in a generalization test, key preference was a function of the degree of difference between the stimuli.