PMID: 9449818Feb 5, 1998Paper

Field-specific responses in the auditory cortex of the unanaesthetized Mongolian gerbil to tones and slow frequency modulations

Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology
H SchulzeHenning Scheich

Abstract

Responses of multi-units in the auditory cortex (AC) of unanaesthetized Mongolian gerbils to pure tones and to linearly frequency modulated (FM) sounds were analysed. Three types of responses to pure tones could be clearly distinguished on the basis of spectral tuning properties, response latencies and overall temporal response pattern. In response to FM sweeps these three types discharged in a temporal pattern similar to tone responses. However, for all type-1 units the latencies of some phasic response components shifted systematically as a function of range and/or speed of modulation. Measurements of response latencies to FMs revealed that such responses were evoked whenever the modulation reached a particular instantaneous frequency (Fi). Effective Fi was: (1) independent of modulation range and speed, (2) always reached before the modulation arrived at a local maximum of the frequency response function (FRF) and consequently differed for downward and upward sweeps, and (3) was correlated with the steepest slope of that FRF maximum. The three different types of units were found in discrete and separate fields or regions of the AC. It is concluded that gross temporal response properties are one of the key features distinguis...Continue Reading

Citations

Oct 10, 2001·Hearing Research·I OrduñaM M Merzenich
Apr 13, 2002·Hearing Research·Malte KittelGeorg M Klump
Feb 14, 2003·Hearing Research·Eva WagnerIngo Hamann
Jul 15, 2015·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Asuka OtsukaSeiji Nakagawa
May 4, 2010·Neurobiology of Learning and Memory·Kasia M Bieszczad, Norman M Weinberger
Jan 23, 2010·The European Journal of Neuroscience·Christoph K MoellerHolger Schulze
Nov 23, 2006·Neuropsychologia·Lisa D Sanders, David Poeppel
Oct 27, 2009·Neuroscience·B Shechter, D A Depireux
Aug 21, 2004·Cerebral Cortex·André Brechmann, Henning Scheich
May 11, 2000·Journal of Neurophysiology·F W OhlW J Freeman
Jan 21, 2021·Frontiers in Neuroscience·Marcus JeschkeFrank W Ohl

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