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. 2013 Nov 13;7:19. doi: 10.3389/fnbot.2013.00019

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Copyright © 2013 Urgen, Plank, Ishiguro, Poizner and Saygin.

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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Time-frequency plots for the three conditions (Human, Android, Robot) at channel F3 (left hemisphere). Plots for the right hemisphere (F4) were very similar and are not shown. The frequency axis is log scaled. The zero point on the time axis indicates the onset of the action movies. Shortly after the onset of the stimuli, there was an increase in theta power (4–8 Hz), followed by a reduction in alpha power (see also Figure 2).