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. 2020 Feb 18;14:11. doi: 10.3389/fncom.2020.00011

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Copyright © 2020 van der Velden, Vinck and Wadman.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Noise induced synchrony during Poisson stimulation. (A) Baseline PPC spectrum (stimulation off) of pairwise neuron-neuron interactions (neuron pairs = 347) within the 7 recorded populations (mean ± sem). (B) Same calculation as in (A) during laser stimulation (mean ± sem). The peak around 1Hz indicates synchrony among pairs of VTA dopamine neurons (neuron pairs = 347). (C) Coherence spectrum of neuron-neuron interactions during stimulation on (mean ± sem, neuron pairs = 347), confirming the results in (B). (D) Partial coherence spectrum (mind the y-axis, mean ± sem, neuron pairs = 347). Around 10% of the coherence in (C) is not directly related to the common drive, as it is taken into account during the coherence computation.