Response to best-frequency tone bursts in the ventral cochlear nucleus is governed by ordered inter-spike interval statistics
Response to best-frequency tone bursts in the ventral cochlear nucleus is governed by ordered inter-spike interval statistics
The spike trains generated by short constant-amplitude constant-frequency tone bursts in the ventral cochlear nucleus of the anaesthetised guinea pig are examined. Spikes are grouped according to the order in which they occur following the onset of the stimulus. It is found that successive inter-spike intervals have low statistical dependence according to information-theoretic measures. This is in contrast to previous observations with long-duration tone bursts in the cat dorsal and posteroventral cochlear nuclei and lateral superior olive, where it was found that long intervals tended to be followed by shorter ones and vice versa. The interval distributions can also be reasonably modelled by a shifted Gamma distribution parameterised by the dead-time and the mean and coefficient of variation of the dead-time corrected ISI distribution. Knowledge of those three parameters for each interval is sufficient to determine the peri-stimulus time histogram and the regularity measures used to classify these neurons.
23-32
Wright, M.C.M.
b7209187-993d-4f18-8003-9f41aaf88abf
Winter, I.M.
c816c472-68e4-47fb-833d-db8b8d7fde27
Forster, J.J.
e3c534ad-fa69-42f5-b67b-11617bc84879
Bleeck, S.
c888ccba-e64c-47bf-b8fa-a687e87ec16c
November 2014
Wright, M.C.M.
b7209187-993d-4f18-8003-9f41aaf88abf
Winter, I.M.
c816c472-68e4-47fb-833d-db8b8d7fde27
Forster, J.J.
e3c534ad-fa69-42f5-b67b-11617bc84879
Bleeck, S.
c888ccba-e64c-47bf-b8fa-a687e87ec16c
Wright, M.C.M., Winter, I.M. and Forster, J.J. et al.
(2014)
Response to best-frequency tone bursts in the ventral cochlear nucleus is governed by ordered inter-spike interval statistics.
Hearing Research, 317, .
(doi:10.1016/j.heares.2014.09.006).
(PMID:25261771)
Abstract
The spike trains generated by short constant-amplitude constant-frequency tone bursts in the ventral cochlear nucleus of the anaesthetised guinea pig are examined. Spikes are grouped according to the order in which they occur following the onset of the stimulus. It is found that successive inter-spike intervals have low statistical dependence according to information-theoretic measures. This is in contrast to previous observations with long-duration tone bursts in the cat dorsal and posteroventral cochlear nuclei and lateral superior olive, where it was found that long intervals tended to be followed by shorter ones and vice versa. The interval distributions can also be reasonably modelled by a shifted Gamma distribution parameterised by the dead-time and the mean and coefficient of variation of the dead-time corrected ISI distribution. Knowledge of those three parameters for each interval is sufficient to determine the peri-stimulus time histogram and the regularity measures used to classify these neurons.
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Accepted/In Press date: 11 September 2014
e-pub ahead of print date: 28 September 2014
Published date: November 2014
Organisations:
Acoustics Group
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Local EPrints ID: 338030
URI: http://eprints.soton.ac.uk/id/eprint/338030
ISSN: 0378-5955
PURE UUID: f4a9718a-d1bf-4834-87f2-059acc82b420
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Date deposited: 10 Mar 2015 11:50
Last modified: 15 Mar 2024 03:25
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Author:
I.M. Winter
Author:
J.J. Forster
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