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October 2021

Language representation in the human brain: Evidence from cortical mapping

Author(s): Mandybur, G. T., Buckingham, H. W., Andy, O. J.

Journal/Book: Brain Lang. 2000; 74: 525 B St, Ste 1900, San Diego, CA 92101-4495, USA. Academic Press Inc. 238-259.

Abstract: The manner in which the human brain processes grammatical-syntactic and lexical-semantic functions has been extensively debated in neurolinguistics, The discreteness and selectivity of the representation of syntactic-morphological properties in the dominant frontal cortex and the representation of the lexical-semantics in the temporo-parietal cortex have been questioned. Three right-handed adult male neurosurgical patients undergoing left craniotomy for intractable seizures were evaluated using various grammatical and semantic tasks during cortical mapping. The sampling of language tasks consisted of trials with stimulation (experimental) and without stimulation (control) from sites in the dominant fronto-temporo-parietal cortex The sampling of language implicated a larger cortical area devoted to language (syntactic-morphological and lexical-semantic) tasks. Further, a large part of the fronto-parieto-temporal cortex was involved with syntactic-morphological functions. However, only the parieto-temporal sites were implicated with the ordering of lexicon in sentence construction, These observations suggest that the representation of language in the human brain may be columnar or multilayered.

Note: Review Bhatnagar SC, Marquette Univ, Dept Speech Pathol & Audiol, POB 1881, Milwaukee,WI 53201 USA

Keyword(s): ELECTRICAL-STIMULATION; SPEECH; LOCALIZATION; APHASIA; CORTEX; DEFICITS; MEMORY; COMPREHENSION; ORGANIZATION; HEMISPHERE


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