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Neural population coding is optimized by discrete tuning curves
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Nikitin, Alexander P., Stocks, Nigel G., Morse, Robert P. and McDonnell, Mark D., 1975-. (2009) Neural population coding is optimized by discrete tuning curves. Physical Review Letters, Vol.103 (No.13). Article: 138101. ISSN 0031-9007
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.103.138101
Abstract
The sigmoidal tuning curve that maximizes the mutual information for a Poisson neuron, or population of Poisson neurons, is obtained. The optimal tuning curve is found to have a discrete structure that results in a quantization of the input signal. The number of quantization levels undergoes a hierarchy of phase transitions as the length of the coding window is varied. We postulate, using the mammalian auditory system as an example, that the presence of a subpopulation structure within a neural population is consistent with an optimal neural code.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Engineering |
| Journal or Publication Title: | Physical Review Letters |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| Date: | 25 September 2009 |
| Volume: | Vol.103 |
| Number: | No.13 |
| Number of Pages: | 4 |
| Page Range: | Article: 138101 |
| Identification Number: | 10.1103/PhysRevLett.103.138101 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), Australian Research Council |
| Grant number: | GR/R35650/01 (EPSRC), EP/D05/1894/1 (EPSRC), DP0770747 |
| URI: | http://wrap.warwick.ac.uk/id/eprint/17200 |
Data sourced from Thomson Reuters' Web of Knowledge
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