Biology – Quantitative Biology – Neurons and Cognition
Scientific paper
2009-07-22
Physical Review E, vol. 81: 011916 (2010)
Biology
Quantitative Biology
Neurons and Cognition
Scientific paper
We examine the effect of the phase-resetting curve (PRC) on the transfer of correlated input signals into correlated output spikes in a class of neural models receiving noisy, super-threshold stimulation. We use linear response theory to approximate the spike correlation coefficient in terms of moments of the associated exit time problem, and contrast the results for Type I vs. Type II models and across the different timescales over which spike correlations can be assessed. We find that, on long timescales, Type I oscillators transfer correlations much more efficiently than Type II oscillators. On short timescales this trend reverses, with the relative efficiency switching at a timescale that depends on the mean and standard deviation of input currents. This switch occurs over timescales that could be exploited by downstream circuits.
Barreiro Andrea K.
Shea-Brown Eric
Thilo Evan L.
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