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Schneider, Mary L.; Moore, Colleen F.; Kraemer, Gary W. – Child Development, 2004
This study examined the relationship between moderate-level prenatal alcohol exposure, prenatal stress, and postnatal response to a challenging event in 6-month-old rhesus monkeys. Forty-one rhesus monkey (Macaca mulatta) infants were exposed prenatally to moderate level alcohol, maternal stress, or both. Offspring plasma cortisol and…
Descriptors: Pregnancy, Drinking, Stress Variables, Separation Anxiety
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Tomasello, Michael; Call, Josep; Gluckman, Andrea – Child Development, 1997
Compared comprehension of novel communicative signs to assist 2.5- and 3-year-old humans, chimpanzees, and orangutans find hidden objects during a hiding-finding game. Found that children at both ages performed above chance with all signs. No ape performed above chance for any signs not known before the experiment despite three times as many…
Descriptors: Animal Behavior, Cognitive Development, Communication Research, Communication Skills