ISSN 1612-3352

Editors in Chief

Prof. Dr. Claus F. Claussen, Neurootological Research Institute of the Research Society for Smell, Taste, Hearing and Equilibrium Disorders at Bad Kissingen (4-G-F). Bad Kissingen, Germany.
Dr. med. Julia M. Bergmann,
Dr. med. Guillermo O. Bertora,
Otoneuroophthalmological Neurophysiology,
Buenos Aires, Argentina.

Production Managers

Dr. med. Julia M. Bergmann,
Dr. med. Guillermo O. Bertora,
Otoneuroophthalmological Neurophysiology,
Buenos Aires, Argentina.


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Tinnitus supratentorial areas study through brain electric tomography (loreta)

Abstract

The tinnitus can be functionally measured and localized through sensorymotor and neurosensorial tests, then there arises a great demand for a systematic pharmacological treatment.
These tests indicate the numerous and different locations of the symptom, and enable us to prove that in around 24% of the patients, tinnitus has a peripheral origin, in 35% it is originated in the brainstem and in 41% at a supratentorial level.
With the Brain Electric Tomography -Loreta, we are in a position so as to measure cerebral cortex elaboration of sensory stimuli, to evaluate its temporospatial distribution on the cortex and, in line with the individual pattern obtained, to carry out the Statistical non Parametric Mapping – SnPM- related to general population parameters.
The existence of frontalization in all these patients and the involvement of the limbic area have been extensively demonstrated in tinnitus, but there is a very significant interindividual variation where different types of cerebral rhythms can be combined indicating, definitely, a hypofunction or hyperfunction of some neurotransmitters.

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