Intracellular response properties of units in the dorsal cochlear nucleus of unanesthetized decerebrate gerbil

Journal of Neurophysiology
J Ding, Herbert F Voigt

Abstract

Intracellular recording experiments on the dorsal cochlear nuclei of unanesthetized decerebrate gerbils were conducted. Acceptable recordings were those in which resting potentials were -50 mV or less and action potentials (APs) were > or = 40 mV. Responses to short-duration tones and noise, and to current pulses delivered via recording electrodes, were acquired. Units were classified according to the response map scheme (types I-IV). Ninety-two acceptable recordings were made. Most units had simple APs (simple-spiking units); nine units had both simple and complex APs, which are bursts of spikes embedded on slow, transient depolarizations (complex-spiking units). Of 83 simple-spiking units, 46 were classified as follows: type I/III (9 units), type II (9 units), type III (25 units), type IV (2 units), and type IV-T (1 unit). One complex-spiking unit was classifiable (a type III unit); six were unclassifiable because of weak acoustic responses. Classifying 39 other simple-spiking units and 2 complex-spiking units was impossible, because they were either injured or lost before sufficient data were acquired. Many simple-spiking units showed depolarization or hyperpolarization (approximately 5-10 mV) during acoustic stimulation; so...Continue Reading

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Citations

Aug 13, 1999·Journal of Neurophysiology·G A SpirouE D Young
Nov 14, 2014·Journal of Neurophysiology·Roxana A StefanescuSusan E Shore
Dec 2, 2015·Frontiers in Neural Circuits·Roxana A Stefanescu, Susan E Shore
Aug 13, 1999·Journal of Neurophysiology·W S Rhode
Nov 11, 2011·Journal of Neurophysiology·Wei-Li Diana Ma, Stephan D Brenowitz

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