Training for voluntarily increasing individual upper α power as a method for cognitive enhancement

被引：10

作者：

Alexeeva M.V. ^{[1
]}

Balios N.V. ^{[2
]}

Muravlyova K.B. ^{[1
]}

Sapina E.V. ^{[1
]}

Bazanova O.M. ^{[1
]}

机构：

[1] Institute of Molecular Biology and Biophysics, Siberian Branch, Russian Academy of Medical Sciences, Novosibirsk

[2] Institute of Physiology, Siberian Branch, Russian Academy of Medical Sciences, Novosibirsk

来源：

Human Physiology | 2012年 / 38卷 / 1期

关键词：

α-activity EEG; biofeedback; cognitive functions; sham biofeedback; training efficiency;

D O I：

10.1134/S0362119711060028

中图分类号：

学科分类号：

摘要：

In order to estimate the effect of simultaneous α EEG stimulating and electromyogram (EMG) decreasing biofeedback training on the α activity and cognitive functions, fluency, accuracy, and flexibility during cognitive tasks, as well as α-activity characteristics before, during, and after ten training sessions of voluntarily increasing α power in an individual upper α range with the eyes closed were studied in 27 healthy men aged 18-34 years. To isolate the biofeedback effect in training for the α power increase, data on two groups of subjects were compared: an experimental group (14 subjects) with true biofeedback and a control group (13 subjects) with sham biofeedback. Follow-up testing was performed one month after the end of training to estimate the stability of the effect. The results showed that the training for the upper α power increase using biofeedback increased the frequency, width, and power in an individual upper α range at rest and improved cognitive performance only in subjects with a low baseline α frequency. Conversely, sham biofeedback training (without the feedback signal) increased the α power, though less efficiently, only in subjects with a high baseline α frequency, this increase was not accompanied by improved cognitive performance. The biofeedback α training eliminated the decrease in the α amplitude in response to a cognitive task after the biofeedback training course, this effect being preserved within one month. It may be concluded that α EEG-EMG biofeedback training can be used for improving cognitive processes in healthy subjects, as well as for prognostic purposes in clinical practice and in the brain-computer interface technology. © 2012 Pleiades Publishing, Ltd.

引用

页码：40 / 48

页数：8

共 46 条

[1]

Williams J.D., Rippon G., Stone B.M., Annett J., Psychophysiological Correlates of Dynamic Imagery, Brit. J. Psychol., 86, (1995)

[2]

Hanslmayr S., Sauseng P., Doppelmayr M., Et al., Increasing Individual Upper Alpha Power by Neurofeedback Improves Cognitive Performance, Appl. Psychophysiol. Biofeedback, 30, (2005)

[3]

Klimesch W., Sauseng P., Hanslmayr S., EEG Alpha Oscillations: The Inhibition-Timing Hypothesis, Brain Res. Rev., 53, (2007)

[4]

Bazanova O.M., Gvozdev A.V., Mursin F.A., Et al., EEG-EMG Dimensionality of the Musical Performance, Cogn. Process., 4, 3, (2003)

[5]

Cho M.K., Jang H.S., Jeong S.-H., Et al., Alpha Neurofeedback Improves the Maintaining Ability of Alpha Activity, Neuroreport, 19, 3, (2008)

[6]

Bazanova O.M., Modern Interpretation of EEG α Activity, Usp. Fiziol. Nauk, 3, (2009)

[7]

Vernon D., Egner T., Cooper N., Et al., The Effect of Training Distinct Neurofeedback Protocols on Aspects of Cognitive Performance, Int. J. Psychophysiol., 47, 1, (2003)

[8]

Zoefel B., Huster R.J., Herrmann C.S., Neurofeedback Training of the Upper Alpha Frequency Band in EEG Improves Cognitive Performance, Neuroimage, 15, 2, (2011)

[9]

Bazanova O.M., Mernaya E.M., Shtark M.B., Biofeedback in Psychomotor Training: Electrophysiological Substantiation, Ross. Fizol. Zh. Im. I.M. Sechenova, 94, 5, (2008)

[10]

Plotkin W., The Role Attribution of Responsibility in the Facilitation of Unusual Experimental States during Alpha Training: An Analysis of the Biofeedback Placebo Effect, J. Abnorm. Psychol, 89, 1, (1980)

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