Response properties of cochlear nucleus neurons in monkeys.
Much of what is known about how the cochlear nuclei participate in mammalian hearing comes from studies of non-primate mammalian species. To determine to what extent the cochlear nuclei of primates resemble those of other mammalian orders, we have recorded responses to sound in three primate species: marmosets, cynomolgus macaques, and squirrel monkeys. These recordings show that the same types of temporal firing patterns are found in primates that have been described in other mammals. Responses to tones of neurons in the ventral cochlear nucleus have similar tuning, latencies, post-stimulus time and interspike interval histograms as those recorded in non-primate cochlear nucleus neurons. In the dorsal cochlear nucleus, too, responses were similar. From these results it is evident that insights gained from non-primate studies can be applied to the peripheral auditory system of primates.
Rhode
William S
WS
Department of Physiology, University of Wisconsin, 1300 University Avenue, Madison, WI 53706, USA. rhode@physiology.wisc.edu
Roth
G Linn
GL
Recio-Spinoso
Alberto
A
D000161:Acoustic Stimulation; D000818:Animals; D001306:Auditory Pathways / Q000502:physiology; D002144:Callithrix / Q000502:physiology; D002415:Cats; D003056:Cochlear Nerve / Q000502:physiology; D017626:Cochlear Nucleus / Q000502:physiology*; D005072:Evoked Potentials, Auditory / Q000502:physiology; D000882:Haplorhini / Q000502:physiology*; D008252:Macaca fascicularis / Q000502:physiology; D008322:Mammals / Q000502:physiology; D012453:Saimiri / Q000502:physiology; D013045:Species Specificity