2010 Special Issue: Information-theoretic methods for studying population codes

  • Authors:
  • Robin A. A. Ince;Riccardo Senatore;Ehsan Arabzadeh;Fernando Montani;Mathew E. Diamond;Stefano Panzeri

  • Affiliations:
  • Faculty of Life Sciences, University of Manchester, Manchester, UK;Faculty of Life Sciences, University of Manchester, Manchester, UK;School of Psychology, University of New South Wales, Sydney, Australia;Department of Robotics, Brain and Cognitive Sciences, Italian Institute of Technology, Via Morego 30, 16163 Genoa, Italy and Instituto de Física La Plata (IFLP), Universidad Nacional de La Pl ...;SISSA Unit, Italian Institute of Technology, Trieste, Italy and Cognitive Neuroscience Sector, International School for Advanced Studies, Trieste, Italy;Department of Robotics, Brain and Cognitive Sciences, Italian Institute of Technology, Via Morego 30, 16163 Genoa, Italy

  • Venue:
  • Neural Networks
  • Year:
  • 2010

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Abstract

Population coding is the quantitative study of which algorithms or representations are used by the brain to combine together and evaluate the messages carried by different neurons. Here, we review an information-theoretic approach to population coding. We first discuss how to compute the information carried by simultaneously recorded neural populations, and in particular how to reduce the limited sampling bias which affects the calculation of information from a limited amount of experimental data. We then discuss how to quantify the contribution of individual members of the population, or the interaction between them, to the overall information encoded by the considered group of neurons. We focus in particular on evaluating what is the contribution of interactions up to any given order to the total information. We illustrate this formalism with applications to simulated data with realistic neuronal statistics and to real simultaneous recordings of multiple spike trains.