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Aleksey Malyshev, Tatjana Tchumatchenko, Stanislav Volgushev and Maxim Volgushev Energy-efficient encoding by shifting spikes in neocortical neurons European Journal of Neuroscience 38

Version of Record online: 14 AUG 2013 | DOI: 10.1111/ejn.12338

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Cortical synapses are typically weak. Here we show that small EPSCs can lead, in line with inducing new action potentials, to a shift of spikes into the response peak. Certain activity patterns promote responding by spike-shifting. We suggest that this response mode allows neuronal networks to prevent explosion of firing, noise and related energy costs while maintaining high sensitivity to perturbations. It may promote energy-efficient computations using weak signals and sparse temporal code.

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