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. 2015 Jan 21;5(1):113. doi: 10.4081/audiores.2015.113

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©Copyright P. Prado-Gutierrez et al.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — Independent responses evoked by 8-kHz tones of 70 dB SPL in a representative adult rat. Each independent auditory steady state responses (ASSR) was obtained by averaging the 30 epochs corresponding to the same time window across the recordings. Left panels represent the waveform of selected epochs. The spectra obtained after applying the fast Fourier transform are presented in the middle panels. In the polar plots presented in the right panels, the independent ASSR amplitudes are reflected as the length of the vector, while the radius of the small black circle with epicenter in the axes origin corresponds to the mean spectral amplitude of the background noise.