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      Neural correlations, population coding and computation.

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          Abstract

          How the brain encodes information in population activity, and how it combines and manipulates that activity as it carries out computations, are questions that lie at the heart of systems neuroscience. During the past decade, with the advent of multi-electrode recording and improved theoretical models, these questions have begun to yield answers. However, a complete understanding of neuronal variability, and, in particular, how it affects population codes, is missing. This is because variability in the brain is typically correlated, and although the exact effects of these correlations are not known, it is known that they can be large. Here, we review studies that address the interaction between neuronal noise and population codes, and discuss their implications for population coding in general.

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          Author and article information

          Journal
          Nat Rev Neurosci
          Nature reviews. Neuroscience
          Springer Science and Business Media LLC
          1471-003X
          1471-003X
          May 2006
          : 7
          : 5
          Affiliations
          [1 ] Department of Brain and Cognitive Sciences and Center for Visual Science, University of Rochester, Rochester, New York 14627, USA.
          Article
          nrn1888
          10.1038/nrn1888
          16760916
          279a4211-2562-4a49-88cc-8b0b27927d06
          History

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