Biases in pigeon working memory

J. Gregor Fetterman
<span title="">2000</span> <i title="Springer Nature"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/4s6wzdo2d5dc5a2c5qdgkgcpfq" style="color: black;">Animal Learning and Behavior</a> </i> &nbsp;
The psychophysics and short-term retention of pigeons' responses to rate of stimulus change were assessed in two experiments, using a symbolic delayed matching-to-sample procedure. In Experiment 1, the birds discriminated between steady and flickering lights. Psychophysical assessments of the discrimination suggested a mix of analogical and categorical strategies. Retention tests revealed a consistent bias to respond to the choice associated with thejlickering sample. In Experiment 2, the birds
more &raquo; ... discriminated between different rates of stimulus change (slow vs.jast). Retention tests indicated a bias to respond to the alternative associated with the slow sample. Transfer tests to new stimulus values revealed that the birds processed the stimuli in an absolute, rather than a relational fashion. These findings are related to recent work on biased forgetting in animal working memory experiments.
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