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. 2014 Jan 31;8:6. doi: 10.3389/fnins.2014.00006

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Copyright © 2014 Fenwick, Wu and Peters.

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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Analysis of primary afferent innervation patterns onto second-order NTS neurons from control and TRPV1 KO animals. (A) Current traces showing increasing stimulus intensity recruiting a single contact followed by multiple convergent ST afferent inputs. Traces are of individual sweeps with the black arrow indicating the time of ST activation. The stimulus artifacts have been removed. Activation of multiple inputs produces a compound waveform; with individual inputs discriminated by shock intensity at activation, latency, and amplitude. (B) Histogram detailing the total number direct ST inputs across recorded neurons from each group. (C) Cumulative proportion showing no significant difference in the percentage of neurons receiving 1 or >1 inputs between control and TRPV1 KO animals (P = 0.63, Wilcoxon ranked sum test). Dashed line provides reference to 1.0 on the vertical axis.