Do scalp-recorded slow potentials during neuro-feedback training reflect the cortical activity?

Neuro-feedback (NFB) is a therapy for treating various neurological diseases such as epilepsy, attention-deficit hyperactivity disorder, and migraine (Wyckoff and Strehl, 2011). The regulation of slow potentials (SPs) can be applied for alleviating the symptoms of brain disorders. The SPs recorded by the scalp electrodes area are generated in the cerebral cortex and are therefore called as slow cortical potentials (SCPs).

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