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Lateralization of speech production starts in sensory cortices--a possible sensory origin of cerebral left dominance for speech
Ist Teil von
Cerebral cortex (New York, N.Y. 1991), 2011-04, Vol.21 (4), p.932-937
Ort / Verlag
United States: Oxford University Press (OUP)
Erscheinungsjahr
2011
Quelle
Oxford Journals 2020 Medicine
Beschreibungen/Notizen
Speech production is a left-lateralized brain function, which could arise from a left dominance either in speech executive or sensory processes or both. Using functional magnetic resonance imaging in healthy subjects, we show that sensory cortices already lateralize when speaking is intended, while the frontal cortex only lateralizes when speech is acted out. The sequence of lateralization, first temporal then frontal lateralization, suggests that the functional lateralization of the auditory cortex could drive hemispheric specialization for speech production.