Lesica, NA;
Grothe, B;
(2008)
Efficient Temporal Processing of Naturalistic Sounds.
PLOS ONE
, 3
(2)
, Article e1655. 10.1371/journal.pone.0001655.
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Abstract
In this study, we investigate the ability of the mammalian auditory pathway to adapt its strategy for temporal processing under natural stimulus conditions. We derive temporal receptive fields from the responses of neurons in the inferior colliculus to vocalization stimuli with and without additional ambient noise. We find that the onset of ambient noise evokes a change in receptive field dynamics that corresponds to a change from bandpass to lowpass temporal filtering. We show that these changes occur within a few hundred milliseconds of the onset of the noise and are evident across a range of overall stimulus intensities. Using a simple model, we illustrate how these changes in temporal processing exploit differences in the statistical properties of vocalizations and ambient noises to increase the information in the neural response in a manner consistent with the principles of efficient coding.
| Type: | Article |
|---|---|
| Title: | Efficient Temporal Processing of Naturalistic Sounds |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1371/journal.pone.0001655 |
| Publisher version: | http://dx.doi.org/10.1371/journal.pone.0001655 |
| Language: | English |
| Additional information: | © 2008 Lesica, Grothe. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. NAL and BG were supported by the Bernstein Center for Computational Neuroscience. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > The Ear Institute |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/111962 |
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