Phase precession and recession with STDP and Anti-STDP

Authors:
Răzvan V. Florian;Raul C. Mureşan
Affiliations:
Center for Cognitive and Neural Studies (Coneural), Cluj-Napoca, Romania;Center for Cognitive and Neural Studies (Coneural), Cluj-Napoca, Romania
Venue:
ICANN'06 Proceedings of the 16th international conference on Artificial Neural Networks - Volume Part I
Year:
2006

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Abstract

We show that standard, Hebbian spike-timing dependent plasticity (STDP) induces the precession of the firing phase of neurons in oscillatory networks, while anti-Hebbian STDP induces phase recession. In networks that are subject to oscillatory inhibition, the intensity of excitatory input relative to the inhibitory one determines whether the phase can precess due to STDP or whether the phase is fixed. This phenomenon can give a very simple explanation to the experimentally-observed hippocampal phase precession. Modulation of STDP can lead, through precession and recession, to the synchronization of the firing of a trained neuron to a target phase.