Abstract
Keypecks were reinforced with food in three pigeons according to a multiple schedule with variable interval schedules of reinforcement associated with the components. If the key was green (G) or white with three horizontal black lines (H), variable interval 30 sec was in effect. A red key (R) or three black vertical lines on a white surround (V) indicated that variable interval 60 sec was in effect. Following this training, a single test session was conducted in which the reinforcer was not available and in which the single stimuli and the compounds HG, HR, VG, and VR were presented. Response rates to the compounds were generally less than to the elements alone. This unexpected result was apparently due to degrading of the stimuli during superimposition. However, the compound rates aligned well with a linear model that assumes no interaction between orientation and color stimuli. This initial agreement with Anderson’s information integration approach suggests further application of the model to stimulus compounding in infrahuman animals.
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Anderson, N. H. Algebraic models in perception. Technical Report No. 24, Center for Human Information Processing, University of California. San Diego, 1972.
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Griffin, P., Hughes, W.R. & Coleman, J.J. Information integration and compounding of discriminative stimuli in pigeons. Perception & Psychophysics 17, 555–558 (1975). https://doi.org/10.3758/BF03203968
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DOI: https://doi.org/10.3758/BF03203968