| Abstract: | Obtained normative data from a battery of tests (e.g., pupillary response, sound localization, orienting, and face reaction) administered to evaluate simple visual functions in 15 infant rhesus monkeys. Visual responsiveness was limited to simple reflexes in the 1st days of life, but it developed rapidly. By the 2nd wk, Ss reached for objects and responded socially to faces with both gaze aversion and lipsmacking. However, social responsiveness developed differently in males and females: Males responded to faces with lipsmacking 4 days after responding with gaze aversion, while females showed both responses for the 1st time on the same day. (18 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
