Functional zones in the auditory cortex of the echolocating bat, Myotis lucifugus |
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Authors: | D Wong S L Shannon |
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Affiliation: | Department of Anatomy, Indiana University School of Medicine, Indianapolis 46223. |
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Abstract: | Neurophysiological mapping experiments in the auditory cortex of the frequency-modulated bat, Myotis lucifugus, reveal 3 functional subregions: a tonotopic zone located dorsally, a delay-sensitive zone more ventrally, and an intermediate zone of major overlap. The unique finding of an overlapping cortical region representing both spectral and time-delay information of echoes is intriguing in view of a recent behavioral study suggesting the convergence of such echo cues in auditory perception. (Simmons et al., Soc. Neurosci. Abstr., 13 [1987] 870). |
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