Responses of squirrel monkey (Samiri sciureus) medial geniculate units to binaural click stimuli.
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Responses of squirrel monkey (Samiri sciureus) medial geniculate units to binaural click stimuli.

  • Author(s): Starr, A
  • Don, M
  • et al.
Abstract

THE NEURAL BASIS for sound localization has been examined with single-unit techniques at various levels of the auditory pathway (superior olive (19, 22, 23, 31, 35, 40), lateral lemniscus (11 ), inferior colliculus (9, 15, 20, 34, 38), medial geniculate (l, 2, 6), and auditory cortex (12, 24)). The general conclusion to be drawn from these studies is that there are neurons sensitive to features of acoustic signals relevant for localization including interaural intensity, time, and phase differences at all levels of the pathway. We have undertaken a singleunit analysis of binaural processes at the medial geniculate in the squirrel monkey, an animal for which we have also obtained psychophysical measures of binaural performance on a lateralization task (14) using

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