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. 2014 Mar 20;8:25. doi: 10.3389/fncir.2014.00025

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Copyright © 2014 Lou, Luo, Zhang, Tao, Chen, Zhou and Xiong.

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) or licensor 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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Spiking response of A1 neurons was compressed by paired VTA-sound stimulation. (A) Example of an intracellular recording from a neuron in rat A1: top, sound only group; bottom, paired VTA-sound group; left, single trace of response; right, five superimposed traces. Thick black bar indicates the sound stimulation. Scale bar: 10 mV/10ms. (B) Averaged firing rate (mean ± S.D.) of neuronal responses evoked by two stimulation groups (n = 13). Shading indicates the SD. Sound only group: light gray; paired VTA-sound group: dark gray. 5 ms binning window. Dashed line showed the baseline of spontaneous firing. Thick black bar indicates the sound stimulation. (C) When VTA-sound stimuli were paired the half-peak bandwidth, spike number and duration of sound evoked spiking responses decreased except that the ratio between spike number and duration increased.