Habituation This 3–month–old provides a vivid demonstration of habituation. She is seated in front of a screen on which photographs are displayed. At the first appearance of a photo of a face, her eyes widen and she stares intently at it. With three more presentations of the same picture, her interest wanes and a yawn appears. By its fifth appearance, other things are attracting the baby's attention, and by the sixth even her dress is more interesting. When a new face finally appears, her interest in something novel is evident. (From Maurer & Maurer, 1988)

ALL: CHARLES E. MAURER