![]() ![]() ![]() Summation and configuration in patterning schedules with the rat and rabbit. It was concluded that the assumed unique cue constituted a learned “rule,” and that the actual elemental stimuli were neither perceptually nor otherwise modified during the conditioning process.īellingham, W. This finding, coupled with the negative patterning found in Experiments 2 and 3, provided support for the unique cue hypothesis. Positive patterning transferred to new stimuli, indicating that it was not attributable solely to summation of sub-threshold excitation conditioned to the elements on reinforced compound trials. All three experiments provided evidence of the acquisition of positive patterning, while negative patterning was found only in Experiments 2 and 3. In Experiment 2, the transfer series began with new elements, after which their compound was presented in Experiment 3, the new compound was presented first in the transfer series, and then the separate elements were administered. Subjects in Experiments 2 and 3 received either positive or negative patterning during training, followed by transfer tests on new stimuli. In negative patterning, the elements are reinforced and the compound is nonreinforced. In positive patterning, a compound of two stimuli is reinforced and its elements are nonreinforced. Subjects in Experiment 1 received both positive and negative patterning training, followed by either positive or negative patterning transfer tests on new stimuli. ![]() Three experiments on classical differential conditioning of the human skin conductance response to elemental and compound stimuli are reported. ![]()
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