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. 2014 Dec 4;8:421. doi: 10.3389/fnbeh.2014.00421

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Copyright © 2014 Avila and Lin.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution and 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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Spike amplitude and complexity in the three types of BF neurons. (A) Spike amplitudes were not statistically different between the three types of BF neurons (ANOVA, F_(2,232) = 2.43, p = 0.09). (B) However, spike amplitude was negatively correlated with the baseline firing rate (Pearson correlation, r = −0.17). Spike waveforms for the BF neurons with highest and lowest amplitudes are shown on the right, with different amplitude scale bars. (C) Spike complexity, defined as the mean absolute amplitude of the peak normalized waveform, was higher in Type-I than in Type-II neurons (ANOVA, F_(2,232) = 3.36, p = 0.037; significant post hoc t-test indicated). (D) Spike complexity showed a stronger dependency with baseline firing rate (Pearson correlation, r = −0.22). Normalized spike waveforms for the 20 BF neurons with the most and least complex spike waveforms are shown on the right.