caa a22 4500 606203982 CHVBK 20210128101000.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s10484-015-9278-9 doi (NATIONALLICENCE)springer-10.1007/s10484-015-9278-9 The Difficulty of Staying Awake During Alpha/Theta Neurofeedback Training [Elektronische Daten] [Maren Schütze, Klaus Junghanns] Alpha/theta neurofeedback training is supposed to enhance cognitive performance as well as alleviate psychiatric disorders. Sleep during this training is regarded a confounding factor, although it is usually not controlled. Here, the amount of sleep, the impact of sleep on frequency results and the validity of subjective judgments of having fallen asleep were investigated. 40 healthy young subjects participated in 31 training units of real or mock feedback. It turned out that stage 2 sleep occurred in 10-14% of training time, in 95% of the subjects and in 1/3 of all training units. Sleep significantly influenced the theta/alpha ratio and theta but not alpha amplitudes. Only about 2/3 of the subjective judgements were correct and no more than 13% of the participants could reliably identify sleep. These data demonstrate that sleep can easily occur during alpha/theta neurofeedback training and should be controlled by objective means. Springer Science+Business Media New York, 2015 Alpha/theta neurofeedback nationallicence EEG nationallicence Sleep nationallicence Meditation nationallicence Relaxation training nationallicence Schütze Maren Centrum of Integrative Psychiatry and Psychotherapy, University of Lubeck, Ratzeburger Allee 160, 23538, Lübeck, Germany aut Junghanns Klaus Centrum of Integrative Psychiatry and Psychotherapy, University of Lubeck, Ratzeburger Allee 160, 23538, Lübeck, Germany aut Applied Psychophysiology and Biofeedback Springer US; http://www.springer-ny.com 40/2(2015-06-01), 85-94 1090-0586 40:2<85 2015 40 10484 https://doi.org/10.1007/s10484-015-9278-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10484-015-9278-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schütze Maren Centrum of Integrative Psychiatry and Psychotherapy, University of Lubeck, Ratzeburger Allee 160, 23538, Lübeck, Germany aut NATIONALLICENCE 700 1- Junghanns Klaus Centrum of Integrative Psychiatry and Psychotherapy, University of Lubeck, Ratzeburger Allee 160, 23538, Lübeck, Germany aut NATIONALLICENCE 773 0- Applied Psychophysiology and Biofeedback Springer US; http://www.springer-ny.com 40/2(2015-06-01), 85-94 1090-0586 40:2<85 2015 40 10484