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• W2132104465 startingPage "225" @default.
• W2132104465 abstract "It was often reported and suggested that the synchronization of spikes can occur without changes in the firing rate. However, few theoretical studies have tested its mechanistic validity. In the present study, we investigate whether changes in synaptic weights can induce an independent modulation of synchrony while the firing rate remains constant. We study this question at the level of both single neurons and neuronal populations using network simulations of conductance based integrate-and-fire neurons. The network consists of a single layer that includes local excitatory and inhibitory recurrent connections, as well as long-range excitatory projections targeting both classes of neurons. Each neuron in the network receives external input consisting of uncorrelated Poisson spike trains. We find that increasing this external input leads to a linear increase of activity in the network, as well␣as an increase in the peak frequency of oscillation. In␣contrast, balanced changes of the synaptic weight of␣excitatory long-range projections for both classes of postsynaptic neurons modulate the degree of synchronization without altering the firing rate. These results demonstrate that, in a simple network, synchronization and firing rate can be modulated independently, and thus, may be used as independent coding dimensions." @default.
• W2132104465 created "2016-06-24" @default.
• W2132104465 creator A5024328042 @default.
• W2132104465 creator A5069332014 @default.
• W2132104465 creator A5080936143 @default.
• W2132104465 date "2007-07-14" @default.
• W2132104465 modified "2023-10-02" @default.
• W2132104465 title "Modulation of synchrony without changes in firing rates" @default.
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• W2132104465 doi "https://doi.org/10.1007/s11571-007-9017-x" @default.
• W2132104465 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2267678" @default.
• W2132104465 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19003515" @default.
• W2132104465 hasPublicationYear "2007" @default.
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