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Old 01-22-2008, 08:37 AM
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EEG Neurofeedback for tinnitus?


The following article caught my eye because my father suffers from a mild case of tinnitus. I seem to recall several members here having tinnitus too.

Emphasis is mine:
Originally Posted by Medical News Today :
Tinnitus - hearing phantom sounds - affects millions of people, but because the physiological mechanisms behind the condition are largely unknown, treatment options are limited. Now research published in the online open access journal BMC Biology shows how a method that temporarily (usually for several seconds) reduces tinnitus in some patients links the condition to brain activity.

Nina Kahlbrock of the University of Konstanz, Germany and Nathan Weisz of INSERM in Lyon, France investigated the relationship between the tinnitus sensation and spontaneous brain activity. Two techniques called tinnitus masking and residual inhibition involve using a sound that temporarily reduces tinnitus (masking). The effect sometimes continues after the masking sound has stopped (residual inhibition or RI). The researchers used RI to reduce eight sufferers' tinnitus intensity, in an effect lasting approximately 30 seconds, coupled with source-space projected magnetencephalographic (MEG) data to track their brain activity.

Weisz had previously found that chronic tinnitus sufferers had different patterns of brain activity compared with those with normal hearing. The brains of tinnitus sufferers showed reduced alpha power (8-12 Hz) and enhancement in the delta (1.5-4 Hz) and gamma power (>30 Hz) brainwave range. These differences were especially pronounced in the brain's temporal cortical regions. In this research, slow wave brain activity was decreased during RI, but the higher alpha frequencies did not change.

"The results of this study suggest that a reduction of the tinnitus perception leads to changes in the oscillatory properties of cortical networks connected to tinnitus," says Kahlbrock. "In particular, changes in slow-wave frequencies appear to be RI related."

Treatment approaches would need to permanently interrupt the underlying oscillatory pattern to succeed. Further investigation into extending the RI approach could include combining it with top-down approaches such as neurofeedback to extend the RI tinnitus-dimming effect. Experiments to boost alpha frequencies and cut delta activity using neurofeedback have previously shown some success in reducing tinnitus.

"Transient reduction of tinnitus intensity is marked by concomitant reductions of delta band power"
Nina Kahlbrock and Nathan Weisz
BMC Biology

BMC Biology - the flagship biology journal of the BMC series - publishes research and methodology articles of special importance and broad interest in any area of biology and biomedical sciences. BMC Biology (ISSN 1741-7007) is covered by PubMed, Scopus, CAS, BIOSIS, Zoological Record and Google Scholar. The journal is tracked by Thomson Scientific (ISI) and will receive its first Impact Factor in 2008.

BioMed Central is an independent online publishing house committed to providing immediate access without charge to the peer-reviewed biological and medical research it publishes. This commitment is based on the view that open access to research is essential to the rapid and efficient communication of science.

http://www.biomedcentral.com
The Brain Activity Behind Tinnitus Uncovered

Here's a link to the abstract of the research article (currently there is a full .PDF version of the article available):

http://www.biomedcentral.com/1741-7007/6/4/abstract


BTW, classic EEG neurofeedback for epilepsy focuses on alpha-theta activity on the sensory motor strip. Looks like tinnitus is related to alpha-delta/gamma activity in the temporal cortical regions. EEG neurofeedback can help normalize activity in all these areas.
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Old 01-22-2008, 12:04 PM
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Cool Hmmm?...very interesting Bernard!...


nice.
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Old 01-22-2008, 07:26 PM
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also, see that:


Neurofeedback for treating tinnitus

Last edited by Birdbomb; 01-22-2008 at 10:19 PM. Reason: clickable link!
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Old 01-23-2008, 06:38 AM
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Thanks bedolaga.
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Old 01-17-2011, 10:52 AM
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http://www.sciencedaily.com/news/mind_brain/epilepsy/
http://www.sciencedaily.com/releases...0112122504.htm

Actually, the second article is the one I found on FB from a friends posting.
Naturally, I get curious and I explore the website to see what I can see.
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