Real-time fMRI feedback training may improve chronic tinnitus.

Por: Estimulação Magnética Transcraniana repetitiva (EMTr)  29/10/2009
Palavras-chave: Terapia, Depressão, Tratamento Dos Transtornos De Humor

 OBJECTIVES: Tinnitus consists of a more or less constant aversive tone or noise and is associated with excess auditory activation. Transient distortion of this activation (repetitive transcranial magnetic stimulation, rTMS) may improve tinnitus. Recently proposed operant training in real-time functional magnetic resonance imaging (rtfMRI) neurofeedback allows voluntary modification of specific circumscribed neuronal activations. Combining these observations, we investigated whether patients suffering from tinnitus can (1) learn to voluntarily reduce activation of the auditory system by rtfMRI neurofeedback and whether (2) successful learning improves tinnitus symptoms. METHODS: Six participants with chronic tinnitus were included. First, location of the individual auditory cortex was determined in a standard fMRI auditory block-design localizer. Then, participants were trained to voluntarily reduce the auditory activation (rtfMRI) with visual biofeedback of the current auditory activation. RESULTS: Auditory activation significantly decreased after rtfMRI neurofeedback. This reduced the subjective tinnitus in two of six participants. Eur Radiol. 2009 Sep 16. [Epub ahead of print] Real-time fMRI feedback training may improve chronic tinnitus. Haller S, Birbaumer N, Veit R.

Palavras-chave: Clínica de Estimulação Magnética, Depressão, Efeito terapêutico, Eletroconvulsoterapia, EMTr, Estimulação Magnética, Estimulacao Magnetica Transcraniana, Psiquiatria, Terapia, Tratamento Dos Transtornos De Humor,

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