An investigation of the concept of cube in the pigeon.
Item
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Title
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An investigation of the concept of cube in the pigeon.
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Identifier
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AAI9218275
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identifier
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9218275
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Creator
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Stevens, Ronald.
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Contributor
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Adviser: Eric G. Heinemann
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Date
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1992
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Language
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English
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Publisher
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City University of New York.
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Subject
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Psychology, Experimental
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Abstract
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The categorization process was investigated using computer generated projections of two three dimensional objects, a cube and a distorted cube. Sixteen pigeons were randomly assigned to one of four groups. Each group was presented with different sets of training stimuli comprised of Cube-Distortion pairs. These pairs were created by rotating the individual Cube and Distortion stimuli in 10 degree increments, simultaneously about the X, Y, and Z axes. Group 1 was trained using one pair, Group 2 was trained using two pairs, Group 3 was trained using four pairs, and Group 4 was trained using eight pairs. Using a choice procedure, the pigeons were trained to discriminate between the Cube and Distortion stimuli.;Generalization tests were performed to determine whether the pigeons had successfully learned to categorize both the Cube and Distortion stimuli. In addition, the underlying nature of the categorization process was investigated by comparing the generalization gradients, produced by the pigeons, to simulated generalization gradients, derived from the Heinemann and Chase (1990) model.;Results show that the pigeons categorize both Cubes and Distortion significantly better than chance. The results were also consistent with the simulations produced by the model.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
