Abstract
The hypothesis that the peaked generalization gradients obtained without explicit discrimination training can be explained by implicit discrimination training between the response key and the wall of the test chamber was investigated. Pigeons were reinforced for pecking a key transilluminated with a white 1.3 cm line on a black background; the wall of the test chamber was also illuminated. A peaked line length generalization gradient was obtained even though the implicit discrimination training probably occurred between the black background and the wall. This result seems to contradict the experimental hypothesis.
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1. This research was supported by Public Health Service Grant MH 13178-01.
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Malott, R.W., Malott, M.K. & Svinicki, J.G. Generalization along the dimension of length of line without explicit discrimination training: A replication. Psychon Sci 9, 17–18 (1967). https://doi.org/10.3758/BF03330737
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DOI: https://doi.org/10.3758/BF03330737