Abstract

In this second report dealing with the effects of prenatal exposure to aluminum or stress, the results of shock-elicited aggression and learned helplessness testing are presented. When compared to controls, aluminum- and stress-exposed offspring displayed significantly more aggressive responses. However, aluminum-exposed offspring spent significantly less time per aggressive response in contact with the target rod. Moreover, aluminum-exposed animals had significantly longer latencies than did stress-exposed animals during the escape-training phase of the learned helplessness study. These results indicated that the prenatal treatments employed may eventuate in behavioral effects with one of these effects being the disruption of a response inhibition/direction mechanism in the aluminum-exposed animals.

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