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Updated: Jul 17, 2026

Generation of Local CA1 γ Oscillations by Tetanic Stimulation
Published on: August 14, 2015
Measuring coupling asymmetry and time delays in neural oscillators
Laura Cimponeriu1, Michael Rosenblum, Anastasios Bezerianos
1Dept. of Medical Physics, University of Patras, Greece (e-mail: laura@heart.med.upatras.gr, phone: +40 2610996115).
Abstract:
We address an important problem in neurophysiology concerning the characterization of coupled neural oscillators from experimental data. The approach employs the formal mathematical description of the dynamics of weakly coupled oscillators by the phase model, and the recently developed methods for identification of directionality of coupling and estimation of coupling delays. We study neuron oscillator models with synaptic coupling and diffusively coupled ensembles of neurons, incorporating time delays in coupling. Results of directionality analysis closely reflect the coupling strength asymmetry. In comparison with the standard crosscorrelation analysis, the phase dynamics based time delays estimation provides more accurate estimates of coupling delays.
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