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Evidence for episodic memory in a pavlovian conditioning procedure in rats

✍ Scribed by Jamus O'Brien; Robert J. Sutherland

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
140 KB
Volume
17
Category
Article
ISSN
1050-9631

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✦ Synopsis

Abstract

In an effort to evaluate episodic memory processes in the rat, we developed a novel Pavlovian conditioning procedure. Rats explored two distinctive contexts, one in the morning and the other in the evening. Subsequently, either in the morning or the evening, they received a foot shock immediately upon entry into a third context that equally resembled the two explored contexts. When conditioned freezing was measured at an intermediate time of day, rats showed significantly more fear of the context congruent with the time of day of the foot shock. Thus, rats automatically form an integrated time–place memory that can be flexibly updated by future events, essential characteristics of episodic memory. Β© 2007 Wiley‐Liss, Inc.

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