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. 2017 Mar 8;11:61. doi: 10.3389/fncel.2017.00061

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Copyright © 2017 Vera, Alcayaga and Sanhueza.

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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CA1 pyramidal neurons display two different perithreshold behaviors under oscillatory stimulation. (A) Voltage responses of two CA1 pyramidal neurons (red and black) stimulated with ZAP protocols (gray) from hyperpolarized (left) to depolarized perithreshold potentials (right; below and above spike threshold). While hyperpolarized responses were similar, cells presented different perithreshold behaviors, non-resonant (red), and resonant (black). (B) Impedance profile obtained from recordings in (A). (C) Quantification of resonance parameters in the whole subthreshold range for neurons displaying non-resonant (Non, n = 21) and resonant (Res, n = 5) perithreshold behavior. Mann Whitney test (Q value) and Two-way ANOVA (peak frequency and Z_max). ^**P < 0.01, ^***P < 0.001.