Cerebral Dominance for Human Language and Music

DOI 13 References
  • Yasui Takuya
    Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo Department of Otolaryngology, Graduate School of Medicine, The University of Tokyo CREST
  • Sakai Kuniyoshi L.
    Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo CREST

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  • 人間の言語と音楽における大脳半球優位性

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Language is a higher brain function which is uniquely human ability. Since the 19th century, functional localization and differentiation of language in the cerebral cortex have been proposed. Recently, more detailed findings relating to functional localization and differentiation have been reported in studies involving functional imaging of the human brain. In the language areas, syntax, sentence comprehension, phonology and lexico-semantic centers are divided as functional modules which correspond to the left dorsal inferior frontal gyrus, ventral inferior frontal gyrus, superior temporal gyrus, and angular/supramarginal gyrus, respectively. Moreover, all of these four regions are basically left-dominant. Meanwhile, we have recently examined melody processing in comparison with language processing, and have found right-dominance in the activations of the auditory areas. It is interesting to note that the higher brain functions related to uniquely human abilities showed such differential hemispheric dominances.

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