Transverse patterning in pigeons |
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| Authors: | P A Couvillon M E Bitterman |
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| Institution: | 1. University of Hawaii, Honolulu, Hawaii
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| Abstract: | Pigeons were trained to choose between colored lights (A, B, C, and D), first in a two-pair ambiguouscue problem (A+B?, B+C?), and then, with all colors nondifferentially reinforced, in a three-pair loop problem (A+B?, B+C?, C+A?) followed by a four-pair loop problem (A+B?, B+D?, D+C?, C+A?). Systematic efforts were made to simulate the data with a variety of models incorporating one or another of three conceptions of stimulus compounding prominent in the literature on compound conditioning. One conception is that the components of a compound stimulus are altered by interaction; the second is that they are not altered, but only supplemented with a new (compound-unique) component generated in the interaction; and the third is that the components entirely disappear in a configurational transformation. The ambiguous-cue data could be simulated accurately with each of the models, but the loop data with none of them. A convincing explanation of performance in loop problems remains to be found. |
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