Prenatal stress exposure alters postnatal behavioral expression under conditions of novelty challenge in rhesus monkey infants
Article first published online: 13 OCT 2004
Copyright © 1992 John Wiley & Sons, Inc.
Volume 25, Issue 7, pages 529–540, November 1992
How to Cite
Schneider, M. L. (1992), Prenatal stress exposure alters postnatal behavioral expression under conditions of novelty challenge in rhesus monkey infants. Dev. Psychobiol., 25: 529–540. doi: 10.1002/dev.420250706
- Issue published online: 13 OCT 2004
- Article first published online: 13 OCT 2004
- Manuscript Accepted: 13 JUL 1992
- Manuscript Revised: 9 JUL 1992
- Manuscript Received: 22 OCT 1991
This prospective study investigated whether mild maternal stress during pregnancy could alter the behavioral and affective responses in rhesus monkey infants in a complex, novel environment. Twenty-four rhesus monkey infants were tested on three occasions at 6 months of age in a novel environment. Twelve infants were derived from mothers exposed to a daily 10-min mild stressor from Day 90 to Day 145 postconception, while 12 were derived from mothers undisturbed during pregnancy. Prenatally stressed infants demonstrated more disturbance behavior, and lower levels of gross motor/exploratory behavior. Moreover, half of the prenatally stresed infants showed an abnormal response, falling asleep, while none of the control infants displayed this behavior. Males exhibited more clinging to surrogates, while females spent more time in gross motor/exploratory behaviors, with prenatally stressed males tending to spend the least time in gross motor/exploratory activity. © 1992 Wiley & sons. Inc.