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Shown is the response to closed-loop stimulation in the alpha band, i.e. the same data analyzed in Fig 3A, now represented as change in total power, phase-locked power, or non-phase-locked (total–phase-locked) power. 74% of the total power change (0.113 dB) is in the non-phase-locked power (0.084 dB). Phase-locked change has a wide confidence interval suggesting essentially zero effect.
