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General Poisson Exact Breakdown of the Mutual Information to Study the Role of Correlations in Populations of Neurons
Journal article   Peer reviewed

General Poisson Exact Breakdown of the Mutual Information to Study the Role of Correlations in Populations of Neurons

A. Scaglione, K. A. Moxon and G. Foffani
Neural computation, v 22(6), pp 1445-1467
01 Jun 2010
DOI: https://doi.org/10.1162/neco.2010.04-09-989
PMID: 20141480

Abstract

Computer Science Computer Science, Artificial Intelligence Life Sciences & Biomedicine Neurosciences Neurosciences & Neurology Science & Technology Technology
We present an integrative formalism of mutual information expansion, the general Poisson exact breakdown, which explicitly evaluates the informational contribution of correlations in the spike counts both between and within neurons. The formalism was validated on simulated data and applied to real neurons recorded from the rat somatosensory cortex. From the general Poisson exact breakdown, a considerable number of mutual information measures introduced in the neural computation literature can be directly derived, including the exact breakdown (Pola, Thiele, Hoffmann, & Panzeri, 2003), the Poisson exact breakdown (Scaglione, Foffani, Scannella, Cerutti, & Moxon, 2008) the synergy and redundancy between neurons (Schneidman, Bialek, & Berry, 2003), and the information lost by an optimal decoder that assumes the absence of correlations between neurons (Nirenberg & Latham, 2003; Pola et al., 2003). The general Poisson exact breakdown thus offers a convenient set of building blocks for studying the role of correlations in population codes.

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Computer Science, Artificial Intelligence
Neurosciences
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