The Effect of Correlated Variability on the Accuracy of a Population Code
- 1 January 1999
- journal article
- Published by MIT Press in Neural Computation
- Vol. 11 (1), 91-101
- https://doi.org/10.1162/089976699300016827
Abstract
We study the impact of correlated neuronal firing rate variability on the accuracy with which an encoded quantity can be extracted from a population of neurons. Contrary to widespread belief, correlations in the variabilities of neuronal firing rates do not, in general, limit the increase in coding accuracy provided by using large populations of encoding neurons. Furthermore, in some cases, but not all, correlations improve the accuracy of a population code.Keywords
This publication has 18 references indexed in Scilit:
- Variability and Correlated Noise in the Discharge of Neurons in Motor and Parietal Areas of the Primate CortexJournal of Neuroscience, 1998
- Parameter Extraction from Population Codes: A Critical AssessmentNeural Computation, 1996
- Noise, neural codes and cortical organizationCurrent Opinion in Neurobiology, 1994
- Correlated neuronal discharge rate and its implications for psychophysical performanceNature, 1994
- Simple models for reading neuronal population codes.Proceedings of the National Academy of Sciences, 1993
- How independent are the messages carried by adjacent inferior temporal cortical neurons?Journal of Neuroscience, 1993
- Information in channel-coded systems: correlated receiversBiological Cybernetics, 1992
- A theory for the use of visual orientation information which exploits the columnar structure of striate cortexBiological Cybernetics, 1988
- Neuronal Population Coding of Movement DirectionScience, 1986
- Sensory discrimination: neural processes preceding discrimination decisionJournal of Neurophysiology, 1980