Alpha neurofeedback improves the maintaining ability of alpha activity.

Department of Pharmacology, Kyungpook National University, Daegu, Republic of Korea.
Neuroreport (Impact Factor: 1.64). 03/2008; 19(3):315-7. DOI: 10.1097/WNR.0b013e3282f4f022
Source: PubMed

ABSTRACT The effects of alpha-neurofeedback (ANF) on electroencephalographic alpha-activity were investigated. Each session consisted of a 2.5-min eye-opened state and 17.5-min of ANF, which was divided into 16 1.25-min bins. Alpha amplitudes were gradually increased as the session was repeated. The maximum value at the start of ANF gradually decreased as time passed, but the slowdown of alpha-activity during each session was decreased as the session was repeated. The correlation between alpha-activity at the end of ANF and at the following session's eye-opened state was highly significant. These results showed that ANF enhances the ability of alpha-activity to maintain itself rather than the increase of alpha-amplitude during intrasession and that the maintained alpha-activity during former training remained until the next session.

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