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EEG biofeedback of low beta band components: frequency-specific effects on variables of attention and event-related brain potentials.

Publication ,  Journal Article
Egner, T; Gruzelier, JH
Published in: Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
January 2004

To test a common assumption underlying the clinical use of electroencephalographic (EEG) biofeedback training (neurofeedback), that the modulation of discreet frequency bands is associated with frequency-specific effects. Specifically, the proposal was assessed that enhancement of the low beta components sensorimotor rhythm (SMR: 12-15 Hz) and beta1 (15-18 Hz) affect different aspects of attentional processing.Subjects (n=25) were randomly allocated to training with either an SMR or beta1 protocol, or to a non-neurofeedback control group. Subjects were assessed prior and subsequent to the training process on two tests of sustained attention. The neurofeedback participants were also assessed on target P300 event-related potential (ERP) amplitudes in a traditional auditory oddball paradigm.Protocol-specific effects were obtained in that SMR training was associated with increased perceptual sensitivity 'd prime' (d'), and reduced omission errors and reaction time variability. Beta1 training was associated with faster reaction times and increased target P300 amplitudes, whereas no changes were evident in the control group.Neurofeedback training of SMR and beta1 band components led to significant and protocol-specific effects in healthy subjects. The data can be interpreted as indicating a general attention-enhancing effect of SMR training, and an arousal-enhancing effect of beta1 training.

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Published In

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology

DOI

EISSN

1872-8952

ISSN

1388-2457

Publication Date

January 2004

Volume

115

Issue

1

Start / End Page

131 / 139

Related Subject Headings

  • Neurology & Neurosurgery
  • Male
  • Humans
  • Female
  • Evoked Potentials, Somatosensory
  • Event-Related Potentials, P300
  • Electroencephalography
  • Biofeedback, Psychology
  • Beta Rhythm
  • Attention
 

Citation

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Egner, T., & Gruzelier, J. H. (2004). EEG biofeedback of low beta band components: frequency-specific effects on variables of attention and event-related brain potentials. Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology, 115(1), 131–139. https://doi.org/10.1016/s1388-2457(03)00353-5
Egner, T., and J. H. Gruzelier. “EEG biofeedback of low beta band components: frequency-specific effects on variables of attention and event-related brain potentials.Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology 115, no. 1 (January 2004): 131–39. https://doi.org/10.1016/s1388-2457(03)00353-5.
Egner T, Gruzelier JH. EEG biofeedback of low beta band components: frequency-specific effects on variables of attention and event-related brain potentials. Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology. 2004 Jan;115(1):131–9.
Egner, T., and J. H. Gruzelier. “EEG biofeedback of low beta band components: frequency-specific effects on variables of attention and event-related brain potentials.Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology, vol. 115, no. 1, Jan. 2004, pp. 131–39. Epmc, doi:10.1016/s1388-2457(03)00353-5.
Egner T, Gruzelier JH. EEG biofeedback of low beta band components: frequency-specific effects on variables of attention and event-related brain potentials. Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology. 2004 Jan;115(1):131–139.
Journal cover image

Published In

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology

DOI

EISSN

1872-8952

ISSN

1388-2457

Publication Date

January 2004

Volume

115

Issue

1

Start / End Page

131 / 139

Related Subject Headings

  • Neurology & Neurosurgery
  • Male
  • Humans
  • Female
  • Evoked Potentials, Somatosensory
  • Event-Related Potentials, P300
  • Electroencephalography
  • Biofeedback, Psychology
  • Beta Rhythm
  • Attention