Auditory Nuclei: Distinctive Response Patterns to White Noise and Tones in Unanesthetized Cats

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Science  09 Oct 1964:
Vol. 146, Issue 3641, pp. 270-272
DOI: 10.1126/science.146.3641.270


Electrical responses to "white" noise and tonal stimuli were recorded from unanesthetized cats with permanently implanted bipolar electrodes. The cochlear nucleus, inferior colliculus, and medial geniculate each showed distinctive patterns of evoked activity. White noise and tones produced qualitatively different types of response. A decrease in activity characterized the response of the inferior colliculus to tonal stimuli.