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  • Title: Neurofeedback training of the upper alpha frequency band in EEG improves cognitive performance.
    Author: Zoefel B, Huster RJ, Herrmann CS.
    Journal: Neuroimage; 2011 Jan 15; 54(2):1427-31. PubMed ID: 20850552.
    Abstract:
    In this study, the individually determined upper alpha frequency band in EEG (electroencephalogram) was investigated as a neurofeedback parameter. Fourteen subjects were trained on five sessions within 1 week by means of feedback dependent on the current upper alpha amplitude. On the first and fifth session, cognitive ability was tested by a mental rotation test. As a result, eleven of the fourteen subjects showed significant training success. Individually determined upper alpha was increased independently of other frequency bands. The enhancement of cognitive performance was significantly larger for the neurofeedback group than for a control group who did not receive feedback. Thus, enhanced cognitive control went along with an increased upper alpha amplitude that was found in the neurofeedback group only.
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