The Effects of Neurofeedback on Oscillatory Processes Related to Tinnitus
Interesting findings in the recently published paper in Brain Topography 2013 relating to the effectiveness of Neurofeedback in the treatment of tinnitus:
ABSTRACT
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. Thomas Hartman, Isabel Lorenz, Nadia Müller, Berthold Langguth, Nathan Weisz Brain Topography 2013. See our extensive range of Neurofeedback devices here.
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