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The precedence effect is an auditory illusion produced by presenting the same signal through 2 loudspeakers, with 1 leading the other by several milliseconds. Adults perceive a sound localized exclusively on the leading side and directionally equivalent to a single source sound. Because the precedence effect is thought to involve cortical functions,(More)
Infants aged 2 and 6 months were tested with the precedence effect, an auditory phenomenon involving sound localization. Each infant was tested with two types of stimuli: sound from a single loudspeaker and precedence-effect sounds produced by the same sound put through two loudspeakers, with one output leading the other by 7 msec. Older infants localized(More)
The purpose of the present study was to measure the degree of interdependence in timing (a) between infants' right and left arm movements, and (b) between movements of both arms and the onsets of stressed vowels in tape-recorded infant-appropriate speech. Based on previous work concerning closely related phenomena, we hypothesized that both forms of(More)
W e hold these truths to be self-evident: libraries are valuable to humankind; libraries preserve knowledge; libraries enable access to information; libraries serve the information needs of their users. To the believer the truth is evident. But libraries are not natural phenomena like the sun rising and setting every day. Libraries are institutions created(More)
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