3 to 4 months: Babies can know depth, orientation, size constancy, shape constancy, completion, motion parallax, and binocular parallax {cognition development, 3 to 4 months}. Using three dimensions and depth uses convergence and eye coordination. Babies recognize people as strangers. Infants watch their two hands as they contact and manipulate each other. Infants can distinguish human faces. Infants make sounds in response to internal states.
Biological Sciences>Zoology>Development>Stages>Infant 03.0 Months
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Date Modified: 2022.0224