Responses of bushy cells to tones: implications for place and temporal sound coding
AuthorPaolini, A. G.; FitzGerald, John V.; Clark, Graeme M.
Source TitleProceedings of the Australian Neuroscience Society
Document TypeConference Item
CitationsPaolini, A. G., FitzGerald, J. V., & Clark, G. M. (2000). Responses of bushy cells to tones: implications for place and temporal sound coding. In Proceedings of the Australian Neuroscience Society, Melbourne, Vic.
Access StatusOpen Access
This is an abstract of a paper from Proceedings of the Australian Neuroscience Society 2000 published by Australian Neuroscience Society. This version is reproduced with the permission of publisher.
The coding of sound requires both temporal and spatial information. The relative importance of temporal and place coding in the ventral cochlear nucleus (YCN) has not been well established. In male rats anaesthetised with urethane (1.3g/kg i.p), microelectrodes containing 1M KAc, were inserted into the YCN. Intracellular recordings were made in 26 neurons which had an intracellular response to pure tones typical of spherical bushy neurons. In response to tones at characteristic frequency (CF) these neurons responded in a primary-like (PL) fashion. The intracellular response was associated with sustained depolarisation to tones presented at CF. Action potentials were usually followed by hyperpolarisation, although hyperpolarisation was still present in their absence.
Keywordscochlear implants; sound coding; otolaryngology
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