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  Neurocognition of auditory sentence comprehension: event related fMRI reveals sensitivity to syntactic violations and task demands

Meyer, M., Friederici, A. D., & von Cramon, D. Y. (2000). Neurocognition of auditory sentence comprehension: event related fMRI reveals sensitivity to syntactic violations and task demands. Cognitive Brain Research, 9(1), 19-33. doi:10.1016/S0926-6410(99)00039-7.

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アイテムのパーマリンク: http://hdl.handle.net/11858/00-001M-0000-0010-CB7F-8 版のパーマリンク: http://hdl.handle.net/11858/00-001M-0000-002C-8353-1
資料種別: 学術論文

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 作成者:
Meyer, Martin1, 著者              
Friederici, Angela D.1, 著者              
von Cramon, D. Yves1, 著者              
所属:
1MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634574              

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キーワード: Event-related functional MRI; Auditory sentence comprehension; Right cerebral hemisphere
 要旨: The present study investigates the sensitivity of distinct brain regions to the syntactic processing of running speech. Experimental conditions varied the grammaticality of sentence types (correct vs. incorrect). Moreover, two different groups of subjects listened to the same sentence material, but followed two different task instructions. All participants were asked to listen to the auditory stimuli and to perform in a grammaticality judgment-task, whereas only half of the subjects were instructed to additionally repair incorrect sentences covertly. Significantly increased brain responses occurred in several left temporal areas as a function of sentences’ grammaticality, particularly, in the ‘pure’ judgment-group. Spatial extent as well as the strength of focal brain activation changed as a function of grammaticality and task demand. A generally enhanced pattern of local blood supply to the right peri-sylvian cortex could be observed when individuals additionally realized the repair-task. In particular, the right inferior frontal gyrus (pars opercularis and pars triangularis) and the right temporal transverse gyrus (Heschl's gyrus) were more strongly affected by the repair-task demand. In contrast, an anterior portion of the superior temporal gyrus (planum polare) displayed increased activation bilaterally. Although left hemisphere activation varied clearly as a function of a sentence's grammaticality, the present findings demonstrate an involvement of the right peri-sylvian cortex, in particular, when task demands explicitly require an on-line repair. The results as a whole suggest a reconsideration of the notion that auditory language comprehension is restricted to the left hemisphere. The underlying mechanisms and the respective roles of both the left and the right hemisphere during speech processing are discussed.

資料詳細

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言語: eng - 英語
 日付: 2000
 出版の状態: 紙媒体で出版済み
 ページ: -
 出版情報: -
 目次: -
 査読: -
 識別子(DOI, ISBNなど): eDoc: 239602
ISI: 000085275000002
その他: P6995
DOI: 10.1016/S0926-6410(99)00039-7
 学位: -

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出版物 1

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出版物名: Cognitive Brain Research
  その他 : Cognit. Brain Res.
種別: 学術雑誌
 著者・編者:
所属:
出版社, 出版地: Amsterdam : Elsevier
ページ: - 巻号: 9 (1) 通巻号: - 開始・終了ページ: 19 - 33 識別子(ISBN, ISSN, DOIなど): ISSN: 0926-6410
CoNE: /journals/resource/954925385137_2