Although statistically non-significant, for all thresholds, chronic pain participants then showed a trend of an increase in fractional occupancy over the first three sessions, with a drop in the last two sessions.
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Using EEG Alpha States to Understand Learning During Alpha Neurofeedback Training for Chronic Pain.
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The sentences
There was a marginally significant positive trend between change in pain ratings and mean alpha power, however, the direction of this trend was opposite to expected.