Stimulus-Dependent Correlations and Population Codes

  title={Stimulus-Dependent Correlations and Population Codes},
  author={Kre{\vs}imir Josi{\'c} and Eric Shea-Brown and Brent Doiron and Jaime de la Rocha},
  journal={Neural Computation},
The magnitude of correlations between stimulus-driven responses of pairs of neurons can itself be stimulus dependent. We examine how this dependence affects the information carried by neural populations about the stimuli that drive them. Stimulus-dependent changes in correlations can both carry information directly and modulate the information separately carried by the firing rates and variances. We use Fisher information to quantify these effects and show that, although stimulus-dependent… CONTINUE READING

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