Publikation: Ventral and dorsal pathways for language
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Datum
2008
Autor:innen
Saur, Dorothee
Kreher, Björn W.
Schnell, Susanne
Kümmerer, Dorothee
Kellmeyer, Philipp
Vry, Magnus-Sebastian
Umarova, Roza
Musso, Mariacristina
Glauche, Volkmar
Abel, Stefanie
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Proceedings of the National Academy of Sciences. 2008, 105(46), pp. 18035-18040. ISSN 0027-8424. eISSN 1091-6490. Available under: doi: 10.1073/pnas.0805234105
Zusammenfassung
Built on an analogy between the visual and auditory systems, the following dual stream model for language processing was suggested recently: a dorsal stream is involved in mapping sound to articulation, and a ventral stream in mapping sound to meaning. The goal of the study presented here was to test the neuroanatomical basis of this model. Combining functional magnetic resonance imaging (fMRI) with a novel diffusion tensor imaging (DTI)-based tractography method we were able to identify the most probable anatomical pathways connecting brain regions activated during two prototypical language tasks. Sublexical repetition of speech is subserved by a dorsal pathway, connecting the superior temporal lobe and premotor cortices in the frontal lobe via the arcuate and superior longitudinal fascicle. In contrast, higher-level language comprehension is mediated by a ventral pathway connecting the middle temporal lobe and the ventrolateral prefrontal cortex via the extreme capsule. Thus, according to our findings, the function of the dorsal route, traditionally considered to be the major language pathway, is mainly restricted to sensory-motor mapping of sound to articulation, whereas linguistic processing of sound to meaning requires temporofrontal interaction transmitted via the ventral route.
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Fachgebiet (DDC)
150 Psychologie
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DTI, extreme capsule, extreme capsule, fMRI, language networks, arcuate fascicle
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SAUR, Dorothee, Björn W. KREHER, Susanne SCHNELL, Dorothee KÜMMERER, Philipp KELLMEYER, Magnus-Sebastian VRY, Roza UMAROVA, Mariacristina MUSSO, Volkmar GLAUCHE, Stefanie ABEL, Walter HUBER, Michel RIJNTJES, Jürgen HENNIG, Cornelius WEILLER, 2008. Ventral and dorsal pathways for language. In: Proceedings of the National Academy of Sciences. 2008, 105(46), pp. 18035-18040. ISSN 0027-8424. eISSN 1091-6490. Available under: doi: 10.1073/pnas.0805234105BibTex
@article{Saur2008-11-18Ventr-25798,
year={2008},
doi={10.1073/pnas.0805234105},
title={Ventral and dorsal pathways for language},
number={46},
volume={105},
issn={0027-8424},
journal={Proceedings of the National Academy of Sciences},
pages={18035--18040},
author={Saur, Dorothee and Kreher, Björn W. and Schnell, Susanne and Kümmerer, Dorothee and Kellmeyer, Philipp and Vry, Magnus-Sebastian and Umarova, Roza and Musso, Mariacristina and Glauche, Volkmar and Abel, Stefanie and Huber, Walter and Rijntjes, Michel and Hennig, Jürgen and Weiller, Cornelius}
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