Abstract
Selective attention in processing of visual information by pigeons, trained on alternating sessions with two colors (red and green) and two forms (a diamond and an X shape) differentially associated with a left—right key choice task, was examined. A color and a form were presented together on probe trials during sessions in which, on other trials, only one of the dimensions, color or form, was shown. The dimension in effect on the surrounding trials had no influence on choice when the information provided by the two dimensions on probe trials was in conflict—color correct for one choice and form for the other. When both color and form redundantly cued the correct choice, there was no increase in accuracy in comparison with that associated with one dimension. Following separate training on the color and form discriminations, pigeons appeared to base their choices on color on some trials, on form on other trials, but not on both simultaneously. These findings are discussed in terms of an exemplar model of information processing.
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The research was made possible by PSC-CUNY Award 66328 to the third author.
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Yokoyama, K., Dailey, D. & Chase, S. Processing of conflicting and redundant stimulus information by pigeons. Learning & Behavior 34, 241–247 (2006). https://doi.org/10.3758/BF03192879
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DOI: https://doi.org/10.3758/BF03192879