NDLI: Animal memory: The contribution of generalization decrement to delayed conditional discrimination retention functions

Content Provider	Springer Nature Link
Author	Rayburn Reeves, Rebecca Zentall, Thomas R.
Copyright Year	2009
Abstract	Delayed conditional discriminations in which a sample indicates which comparison stimulus is correct have typically been used in working memory research with animals. Following acquisition with no (0-sec) delay between the offset of the sample and the onset of the comparison stimuli, delays of variable duration are introduced. The resulting retention functions are taken as a measure of memory. We suggest that, in addition to memory loss due to the delay, the comparison of matching accuracy at the 0-sec training delay with relatively novel test delays may produce a generalization decrement that varies as a function of increasing delay. We tested this hypothesis by training pigeons with a mixed delay procedure from the start and found that the retention functions for these pigeons were significantly shallower than those for a control group trained with 0-sec delays and tested with longer delays, and, although reduced in magnitude, the differences persisted for as many as 15 sessions. We propose that a measure of animals’ working memory can be obtained uninfluenced by a generalization decrement if they have received comparable training with all of the delays that are tested.
Starting Page	299
Ending Page	304
Page Count	6
File Format	PDF
ISSN	00904996
Journal	Learning & Behavior
Volume Number	37
Issue Number	4
e-ISSN	15325830
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-01-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Psychology Neurosciences
Content Type	Text
Resource Type	Article
Subject	Experimental and Cognitive Psychology Behavioral Neuroscience Psychology Animal Science and Zoology Neuropsychology and Physiological Psychology

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