Hemispheric association and dissociation of voice and speech information processing in stroke

Abstract : As we listen to someone speaking, we extract both linguistic and non-linguistic information. Knowing how these two sets of information are processed in the brain is fundamental for the general understanding of social communication, speech recognition and therapy of language impairments. We investigated the pattern of performances in phoneme versus gender categorization in left and right hemisphere stroke patients, and found an anatomo-functional dissociation in the right frontal cortex, establishing a new syndrome in voice discrimination abilities. In addition, phoneme and gender performances were most often associated than dissociated in the left hemisphere patients, suggesting a common neural underpinnings.
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Anna Jones, Andrew Farrall, Pascal Belin, Cyril Pernet. Hemispheric association and dissociation of voice and speech information processing in stroke. Cortex, Elsevier, 2015. ⟨hal-01997402⟩

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