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Correlations and Neuronal Population Information.

  • Kohn A Dominick Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461; email: adam.kohn@einstein.yu.edu.
  • Coen-Cagli R Department of Basic Neuroscience, University of Geneva, CH-1211 Geneva, Switzerland; email: Ruben.CoenCagli@unige.ch , alexandre.pouget@unige.ch.
  • Kanitscheider I Department of Basic Neuroscience, University of Geneva, CH-1211 Geneva, Switzerland; email: Ruben.CoenCagli@unige.ch , alexandre.pouget@unige.ch.
  • Pouget A Department of Basic Neuroscience, University of Geneva, CH-1211 Geneva, Switzerland; email: Ruben.CoenCagli@unige.ch , alexandre.pouget@unige.ch.
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  • 2016-05-06
Published in:
  • Annual review of neuroscience. - 2016
Fisher information
decoding
neural coding
neural variability
perception
theoretical neuroscience
Action Potentials
Animals
Artificial Intelligence
Brain
Humans
Models, Neurological
Neurons
Statistics as Topic
English Brain function involves the activity of neuronal populations. Much recent effort has been devoted to measuring the activity of neuronal populations in different parts of the brain under various experimental conditions. Population activity patterns contain rich structure, yet many studies have focused on measuring pairwise relationships between members of a larger population-termed noise correlations. Here we review recent progress in understanding how these correlations affect population information, how information should be quantified, and what mechanisms may give rise to correlations. As population coding theory has improved, it has made clear that some forms of correlation are more important for information than others. We argue that this is a critical lesson for those interested in neuronal population responses more generally: Descriptions of population responses should be motivated by and linked to well-specified function. Within this context, we offer suggestions of where current theoretical frameworks fall short.
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  • English
Open access status
green
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https://sonar.ch/global/documents/149669
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