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We study the impact of spike-timing-dependent synaptic plasticity (STDP) on coherent gamma activity between distant cortical regions with reciprocal projections. Our simulation network consists of two areas and includes a STDP model reflecting efficacy suppression between pre/postsynaptic spike pairs as found in recent experiments during stimulation with spike trains (Nature 416 (2002) 433). We find...
Multi-electrode recordings revealed that fast oscillatory (30–60Hz) spike activity is often synchronized with zero phase lag, even for recording sites in distant cortical areas. We show in this simulation study that the dominance of zero-phase correlations is inconsistent with the long conduction delays measured between distant areas: For realistic delays, reciprocally connected neuron populations...
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