Perception of moving, sounding objects by four-month-old infants |
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Authors: | E S Spelke W Smith Born F Chu |
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Abstract: | Infants and adults were presented with two moving objects accompanied by a single percussive sound. In different experiments, the sound occurred when one object moved through a particular spatial position, when it abruptly changed its direction of movement, or when it made contact with a rigid surface. Infants responded to the sound-object relationship whenever the sound occurred as the object changed direction, irrespective of its impacts with the surface. Adults, in contrast, responded to the sound-object relationship most clearly when sounds were synchronized with impacts. In infancy, perception of auditory-visual relationships thus depends in part on detection of discontinuities in the movement of a visible object. |
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