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Power spectral density per channel for subject 10, run 02. (A) Log scale for the x axis accentuates low frequency drifts in the data. The red lines show the PSD for the bad channels marked manually and provided to us by Wakeman and Henson (2015). (B) The same data with a linear x-axis scale. Five peaks corresponding to HPI coils around 300 Hz are visible and marked in gray dotted lines alongside the power line frequency (50 Hz).
