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. 2019 Sep 24;10:654. doi: 10.3389/fendo.2019.00654

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Copyright © 2019 Estumano, Ferreira, Bezerra, da Silva, Jardim, Santos, Gustavo, Mattos, Ramos, Jóia de Mello, da Costa, Lopes and Hamoy.

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) and the copyright owner(s) 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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Decomposition of the cerebral waves. (A) Linear frequency distribution (left) and spectrogram of the frequencies (right) of the delta waves. (B) Linear frequency distribution (left) and spectrogram of the frequencies (right) of theta waves. (C) Linear frequency distribution (left) and spectrogram of the frequencies (right) of the alpha waves. (D) Linear frequency distribution (left) and spectrogram of the frequencies (right) of the beta waves. (E) Linear frequency distribution (left) and spectrogram of the frequencies (right) of the gamma waves. The data are expressed as means ±SD. (n = 9 animals/group; *p < 0.05, **p < 0.01, and ***p < 0.001). (TST, testosterone; NC, non-castrated; C, castrated; NC + TST, non-castrated + testosterone; C + TST, castrated + testosterone).