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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: J Neural Eng. 2014 Sep 22;11(5):056024. doi: 10.1088/1741-2560/11/5/056024

Figure 8.

Figure 8

Example of spectral filter generation from one channel (5 second interval; Channel 16; recording 20130403). The averaged power spectrum for stimulation (yellow; top left) and non-stimulation time bins (yellow; top right) is used to generate a filter template (blue; center). This filter is then used to remove artifacts in future instances (red; bottom left), which leads to a cleaned signal (red; right). Note that the three distinct peaks at 2400, 3000 and 3600 Hz in the averaged non-stimulation spectrum (yellow; top right) and filtered signal (red; right) are artifacts from the motion tracking system which are present continuously and therefore are not filtered out.