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. Author manuscript; available in PMC: 2016 Sep 30.
Published in final edited form as: J Neurosci Methods. 2015 Jun 22;253:90–100. doi: 10.1016/j.jneumeth.2015.06.013

Figure 6. Power spectra of head movement.

Figure 6

Following a fast Fourier transformation, the power spectra of head rotational velocity in each of the three axes – roll (top), pitch (middle), and yaw (bottom) – is shown for two mask monkeys (left column), one calm (brighter color) and one restless (darker color), and two post monkeys (right column), one calm and one restless. These plots represent the same data as in Figure 5.