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. Author manuscript; available in PMC: 2020 May 26.
Published in final edited form as: J Neural Eng. 2017 Mar 7;14(3):035002. doi: 10.1088/1741-2552/aa651f

Figure 7.

Figure 7.

Signal comparison between Brainvision actiCHamp system and Open Ephys + EEG system using the same Brainvision actiCap electrode cap in recording eyes closed alpha activity. Transition from eyes closed to eyes open in the [top figure] Brainvision system and the [bottom figure] Open Ephys + EEG are very similar. b) Average PSD of Brainvision (dotted black line) and Open Ephys + EEG (solid blue line) for eyes closed epochs.