The Effects of Neurofeedback on Oscillatory Processes Related to Tinnitus

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2014
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Zusammenfassung

Although widely used, no proof exists for the feasibility of neurofeedback for reinstating the disordered excitatory–inhibitory balance, marked by a decrease in auditory alpha power, in tinnitus patients. The current study scrutinizes the ability of neurofeedback to focally increase alpha power in auditory areas in comparison to the more common rTMS. Resting-state MEG was measured before and after neurofeedback (n = 8) and rTMS (n = 9) intervention respectively. Source level power and functional connectivity were analyzed with a focus on the alpha band. Only neurofeedback produced a significant decrease in tinnitus symptoms and—more important for the context of the study—a spatially circumscribed increase in alpha power in right auditory regions. Connectivity analysis revealed higher outgoing connectivity in a region ultimately neighboring the area in which power increases were observed. Neurofeedback decreases tinnitus symptoms and increases alpha power in a spatially circumscribed manner. In addition, compared to a more established brain stimulation-based intervention, neurofeedback is a promising approach to renormalize the excitatory–inhibitory imbalance putatively underlying tinnitus. This study is the first to demonstrate the feasibility of focally enhancing alpha activity in tinnitus patients by means of neurofeedback.

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150 Psychologie
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Tinnitus, Neurofeedback, rTMS, MEG, Auditory alpha, Tau rhythm
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ISO 690HARTMANN, Thomas, Isabel LORENZ, Nadia MÜLLER, Berthold LANGGUTH, Nathan WEISZ, 2014. The Effects of Neurofeedback on Oscillatory Processes Related to Tinnitus. In: Brain Topography. 2014, 27(1), pp. 149-157. ISSN 0896-0267. eISSN 1573-6792. Available under: doi: 10.1007/s10548-013-0295-9
BibTex
@article{Hartmann2014Effec-30111,
  year={2014},
  doi={10.1007/s10548-013-0295-9},
  title={The Effects of Neurofeedback on Oscillatory Processes Related to Tinnitus},
  number={1},
  volume={27},
  issn={0896-0267},
  journal={Brain Topography},
  pages={149--157},
  author={Hartmann, Thomas and Lorenz, Isabel and Müller, Nadia and Langguth, Berthold and Weisz, Nathan}
}
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