Context Familiarity and Delayed Conditioned Taste Aversion in Young-Adult and Old-Age Rats

Abstract

Familiarity with a conditioning context different from the home-cage environment was examined in immediate and delayed (3-hr.) conditioned taste aversion (CTA) learning for young-adult (90—120 days) and old-age (680—750 days) female Wistar albino rats. Context familiarity increased CTA for young adults at the 3-hr. delay. Old-age rats showed no aversion at 3-hr. delays. Results suggest that home-cage cues may be used in mediating long-delay CTA and that the role of these cues may differ with age.

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References

Hendley

E. D.

Wessel

D. J.

Atwater

D. G.

Gellis

Whitehorn

Low

W. C.

(1985) Age, sex and strain differences in activity and habituation in SHR and WKY rats. Physiology and Behavior, 34, 379–383.

Ingram

D. K.

Peacock

L. J.

(1980) Conditioned taste aversion as a function of age in mature rats. Experimental Aging Research, 6, 113–123.

Misanin

J. R.

Greider

D. L.

Hinderliter

C. F.

(1988) Age differences in the outcome or long-delay taste-aversion conditioning in rats. Bulletin of the Psychonomic Society, 26, 258–260.

Mitchell

Winter

Moffit

(1980) Cross-modality contrast: exteroceptive context habituation enhances taste neophobia and conditioned taste aversions. Animal Learning & Behavior, 8, 524–528.