PMID: 9659984Jul 11, 1998Paper

Factors shaping the response latencies of neurons in the cat's auditory cortex

Behavioural Brain Research
D P Phillips

Abstract

This article addresses two issues. Firstly, the hypothesis that response latency might be a neural code for tone frequency was examined in single-neuron data from the primary auditory cortex of anesthetized cats. Minimal response latencies for characteristic frequency (CF) tones were independent of neural CF. Mean response latencies for a constant amplitude CF tone were also independent of CF. These data, and the fact that cortical neurons do not have an obvious independent referent for stimulus onset time, do not support the view that latency is a code for frequency. Secondly, to investigate a simple threshold model of spike initiation time, we describe the prolongations of response latency with increases in stimulus rise time and their dependence on the peak amplitude of the stimulus. These data show that in cortical neurons, it is not the peak stimulus intensity which determines first-spike latency, and second, that the response latencies are systematically not those expected on the basis of simple threshold model.

References

Aug 1, 1991·Brain : a Journal of Neurology·P BrownC D Marsden
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Sep 1, 1990·The Journal of the Acoustical Society of America·D P Phillips, S E Hall
Jun 1, 1989·The Journal of the Acoustical Society of America·D P PhillipsJ L Hollett
Jan 1, 1985·Hearing Research·R S Heffner, H E Heffner
Jun 18, 1982·Science·G L RomaniL Kaufman
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Citations

Apr 21, 2007·Science in China. Series C, Life Sciences·Qiang QiuJunXian Shen
Jul 16, 2002·Hearing Research·D P PhillipsS E Boehnke
Aug 3, 2002·The European Journal of Neuroscience·Jun Yan, Günter Ehret
Oct 15, 2010·Journal of Neurophysiology·Frank G Lin, Robert C Liu
Nov 17, 2010·PLoS Computational Biology·Genadiy VassermanRonen Segev
Mar 16, 2007·Proceedings of the National Academy of Sciences of the United States of America·Steven M Chase, Eric D Young
Jul 22, 2010·The European Journal of Neuroscience·Lissandra Castellan Baldan RamseyLaura M Hurley
May 21, 1999·The Journal of the Acoustical Society of America·D P Phillips, R Burkard
Jan 2, 2015·Journal of Neurophysiology·Eran LottemRony Azouz

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