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Temporo-insular enhancement of EEG low and high frequencies in patients with chronic tinnitus. QEEG study of chronic tinnitus patients

Temporo-insular enhancement of EEG low and high frequencies in patients with chronic tinnitus. QEEG study of chronic tinnitus patients

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Prüfsumme: MD5:0828ae00eeaeb970d1271ecc28ea6e81

MOAZAMI-GOUDARZI, Morteza, Lars MICHELS, Nathan WEISZ, Daniel JEANMONOD, 2010. Temporo-insular enhancement of EEG low and high frequencies in patients with chronic tinnitus. QEEG study of chronic tinnitus patients. In: BMC Neuroscience. 11, 40. eISSN 1471-2202

@article{Moazami-Goudarzi2010Tempo-12538, title={Temporo-insular enhancement of EEG low and high frequencies in patients with chronic tinnitus. QEEG study of chronic tinnitus patients}, year={2010}, doi={10.1186/1471-2202-11-40}, volume={11}, journal={BMC Neuroscience}, author={Moazami-Goudarzi, Morteza and Michels, Lars and Weisz, Nathan and Jeanmonod, Daniel}, note={Article Number: 40} }

Temporo-insular enhancement of EEG low and high frequencies in patients with chronic tinnitus. QEEG study of chronic tinnitus patients Background:<br />The physiopathological mechanism underlying the tinnitus phenomenon is still the subject of an ongoing debate. Since oscillatory EEG activity is increasingly recognized as a fundamental hallmark of cortical integrative functions, this study investigates deviations from the norm of different resting EEG parameters in patients suffering from chronic tinnitus.<br />Results:<br />Spectral parameters of resting EEG of male tinnitus patients (n = 8, mean age 54 years) were compared to those of age-matched healthy males (n = 15, mean age 58.8 years). On average, the patient group exhibited higher spectral power over the frequency range of 2-100 Hz. Using LORETA source analysis, the generators of delta, theta, alpha and beta power increases were localized dominantly to left auditory (Brodmann Areas (BA) 41,42, 22), temporo-parietal, insular posterior, cingulate anterior and parahippocampal cortical areas.<br />Conclusions:<br />Tinnitus patients show a deviation from the norm of different resting EEG parameters, characterized by an overproduction of resting state delta, theta and beta brain activities, providing further support for the microphysiological and magnetoencephalographic evidence pointing to a thalamocortical dysrhythmic process at the source of tinnitus. These results also provide further confirmation that reciprocal involvements of both auditory and associative/paralimbic areas are essential in the generation of tinnitus. Moazami-Goudarzi, Morteza eng Michels, Lars deposit-license Weisz, Nathan Moazami-Goudarzi, Morteza Jeanmonod, Daniel First publ. in: BMC Neuroscience 11 (2010), 40 Jeanmonod, Daniel 2011-05-19T10:01:09Z Weisz, Nathan Michels, Lars 2011-05-19T10:01:09Z 2010

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