Differential activation of right and left posterior sylvian regions by semantic and phonological tasks: a positron-emission tomography study in normal human subjects - PubMed (original) (raw)
Differential activation of right and left posterior sylvian regions by semantic and phonological tasks: a positron-emission tomography study in normal human subjects
J F Démonet et al. Neurosci Lett. 1994.
Abstract
A previous study of brain activation in normal subjects during a phonological (Phonemes) task and a lexical semantic (Words) task using positron-emission tomography [3] is complemented by new data after a method for image realignment was applied [17]. The pattern of cerebral blood flow increases associated with Words compared with Phonemes, involved several foci of activation but these were not exclusively distributed in the left hemisphere as it also included the right angular gyrus, suggesting a participation of the right hemisphere in lexical semantic processes. Conversely, by comparison to Words, Phonemes activated left-sided perisylvian regions, involving the inferior part of the left supramarginal gyrus, in accordance with previous results on verbal short-term memory [12].
Similar articles
- ERP mapping in phonological and lexical semantic monitoring tasks: A study complementing previous PET results.
Thierry G, Doyon B, Démonet JF. Thierry G, et al. Neuroimage. 1998 Nov;8(4):391-408. doi: 10.1006/nimg.1998.0371. Neuroimage. 1998. PMID: 9811557 Clinical Trial. - PET imaging of cochlear-implant and normal-hearing subjects listening to speech and nonspeech.
Wong D, Miyamoto RT, Pisoni DB, Sehgal M, Hutchins GD. Wong D, et al. Hear Res. 1999 Jun;132(1-2):34-42. doi: 10.1016/s0378-5955(99)00028-3. Hear Res. 1999. PMID: 10392545 Free PMC article. - A PET study of stimulus- and task-induced semantic processing.
Noppeney U, Price CJ. Noppeney U, et al. Neuroimage. 2002 Apr;15(4):927-35. doi: 10.1006/nimg.2001.1015. Neuroimage. 2002. PMID: 11906233 - Noun and verb retrieval by normal subjects. Studies with PET.
Warburton E, Wise RJ, Price CJ, Weiller C, Hadar U, Ramsay S, Frackowiak RS. Warburton E, et al. Brain. 1996 Feb;119 ( Pt 1):159-79. doi: 10.1093/brain/119.1.159. Brain. 1996. PMID: 8624678 Review. - A critical review of PET studies of phonological processing.
Poeppel D. Poeppel D. Brain Lang. 1996 Dec;55(3):317-51; discussion 352-85. doi: 10.1006/brln.1996.0108. Brain Lang. 1996. PMID: 8954603 Review.
Cited by
- Intracranial recording in patients with aphasia using nanomaterial-based flexible electronics: promises and challenges.
Wang Q, Siok WT. Wang Q, et al. Beilstein J Nanotechnol. 2021 Apr 8;12:330-342. doi: 10.3762/bjnano.12.27. eCollection 2021. Beilstein J Nanotechnol. 2021. PMID: 33889479 Free PMC article. Review. - The effect of social content on deductive reasoning: an fMRI study.
Canessa N, Gorini A, Cappa SF, Piattelli-Palmarini M, Danna M, Fazio F, Perani D. Canessa N, et al. Hum Brain Mapp. 2005 Sep;26(1):30-43. doi: 10.1002/hbm.20114. Hum Brain Mapp. 2005. PMID: 15852469 Free PMC article. - The anatomy of language: contributions from functional neuroimaging.
Price CJ. Price CJ. J Anat. 2000 Oct;197 Pt 3(Pt 3):335-59. doi: 10.1046/j.1469-7580.2000.19730335.x. J Anat. 2000. PMID: 11117622 Free PMC article. Review. - Early and sustained supramarginal gyrus contributions to phonological processing.
Sliwinska MW, Khadilkar M, Campbell-Ratcliffe J, Quevenco F, Devlin JT. Sliwinska MW, et al. Front Psychol. 2012 May 28;3:161. doi: 10.3389/fpsyg.2012.00161. eCollection 2012. Front Psychol. 2012. PMID: 22654779 Free PMC article. - Dough, tough, cough, rough: A "fast" fMRI localizer of component processes in reading.
Malins JG, Gumkowski N, Buis B, Molfese P, Rueckl JG, Frost SJ, Pugh KR, Morris R, Mencl WE. Malins JG, et al. Neuropsychologia. 2016 Oct;91:394-406. doi: 10.1016/j.neuropsychologia.2016.08.027. Epub 2016 Aug 31. Neuropsychologia. 2016. PMID: 27592331 Free PMC article.