Abstract
In the present experiment, we compared directly pigeons’ short-term memory of temporal and visual stimuli in a delayed matching-to-sample task. The sample stimuli consisted of red and green lights presented for 5 and 30 sec, followed by a retention interval and blue and yellow comparisons. For subjects in the visual group, duration was irrelevant and the color of the sample was the conditional cue. For animals in the temporal group, color was irrelevant and duration of the sample was the conditional stimulus. The results showed that acquisition of the matching task was faster and accuracy was higher in the visual than in the temporal group. More importantly, memory of either sample generally declined at a similar rate when the duration of the retention interval was increased and when the intertrial interval was reduced. Taken together, the results indicate that with 1–8-sec retention intervals, short-term memory for temporal stimuli is similar to that found with color-visual samples. The findings are discussed in terms of retrospective and prospective processing.
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This paper represents a portion of the first author’s dissertation presented to Colorado State University in partial fulfillment of the PhD requirement.
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Bowers, R.L., Richards, R.W. Pigeons’ short-term memory for temporal and visual stimuli in delayed matching-to-sample. Animal Learning & Behavior 18, 23–28 (1990). https://doi.org/10.3758/BF03205235
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DOI: https://doi.org/10.3758/BF03205235