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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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Datensatz-Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-CB7F-8 Versions-Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-8353-1
Genre: Zeitschriftenartikel

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 Urheber:
Meyer, Martin1, Autor              
Friederici, Angela D.1, Autor              
von Cramon, D. Yves1, Autor              
Affiliations:
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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Schlagwörter: Event-related functional MRI; Auditory sentence comprehension; Right cerebral hemisphere
 Zusammenfassung: 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.

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Sprache(n): eng - Englisch
 Datum: 2000
 Publikationsstatus: Im Druck publiziert
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 239602
ISI: 000085275000002
Anderer: P6995
DOI: 10.1016/S0926-6410(99)00039-7
 Art des Abschluß: -

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Titel: Cognitive Brain Research
  Andere : Cognit. Brain Res.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Amsterdam : Elsevier
Seiten: - Band / Heft: 9 (1) Artikelnummer: - Start- / Endseite: 19 - 33 Identifikator: ISSN: 0926-6410
CoNE: /journals/resource/954925385137_2