Prenatal stress affects mother–infant interaction in norway rats
Version of Record online: 13 OCT 2004
Copyright © 1986 John Wiley & Sons, Inc.
Volume 19, Issue 3, pages 235–245, May 1986
How to Cite
Moore, C. L. and Power, K. L. (1986), Prenatal stress affects mother–infant interaction in norway rats. Dev. Psychobiol., 19: 235–245. doi: 10.1002/dev.420190309
- Issue online: 13 OCT 2004
- Version of Record online: 13 OCT 2004
- Manuscript Revised: 28 AUG 1985
- Manuscript Received: 6 APR 1985
Pregnant Long-Evans rats were stressed by crowding, and subsequent mother–infant interactions were described after cross-fostering. Prenatally stressed pups elicited less maternal licking from unstressed forster dams than controls, and previously stressed dams licked unstressed forster pups less than controls. No other differences in mother–infant interactions were detected. Adult offspring reared by foster dams that were stressed during pregnancy were more active in an open field than controls, but prenatally stressed and unstressed animals reared by control dams did not differ. Thus, stress during pregnancy can alter the maternal behavior of stressed dams, and the differential maternal stimulation can affect adult open-field behavior. Because prenatally stressed pups elicit different maternal care, cross-fostering does not eliminate the possibility that maternal stimulation may mediate some prenatal stress effects.