Infant response to impending optical collision.
Young infants withdraw their heads when shown a display simulating a rectangle rotating towards their faces. The head withdrawal is specific to that transformation and is not elicited by a similar transformation which does not specify approach. This is possible evidence of an unlearned ability to pick up information about change of position in the third dimension.
D004215:Distance Perception; D006801:Humans; D007231:Infant, Newborn; D009068:Movement