Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7320889 | Neuropsychologia | 2014 | 11 Pages |
Abstract
Unexpectedly, CNV amplitudes at electrode sites approximating bilateral motor and left inferior frontal gyrus appeared to be inversely proportional to stuttering frequency. The higher the stuttering frequency, the lower the activity for articulatory preparation. Thus, the amount of disturbance in motor programming seems to determine stuttering frequency. At right frontal electrodes, a relative increase in CNV amplitude was seen at the test session with most severe stuttering. Right frontal overactivation is cautiously suggested to be a compensation strategy. In conclusion, late CNV amplitude elicited by a relatively simple speech task seems to be able to provide an objective, neural correlate of stuttering frequency. The present case report supports the hypothesis that motor preparation has an important role in stuttering.
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Authors
Sarah Vanhoutte, John Van Borsel, Marjan Cosyns, Katja Batens, Pieter van Mierlo, Dimitri Hemelsoet, Dirk Van Roost, Paul Corthals, Miet De Letter, Patrick Santens,