Task-specific change of unconscious neural priming in the cerebral language network.

Task-specific change of unconscious neural priming in the cerebral language network. Research Abstract Details 

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Task-specific change of unconscious neural priming in the cerebral language network. Abstract Text:

Kimihiro Nakamura,Stanislas Dehaene,Antoinette Jobert,Denis Le Bihan,Sid Kouider,Kimihiro Nakamura,Stanislas Dehaene,Antoinette Jobert,Denis Le Bihan,Sid Kouider,Kimihiro Nakamura,Stanislas Dehaene,Antoinette Jobert,Denis Le Bihan,Sid Kouider,

We explored the impact of task context on subliminal neural priming using functional magnetic resonance imaging. The repetition of words during semantic categorization produced activation reduction in the left middle temporal gyrus previously associated with semantic-level representation and dorsal premotor cortex. By contrast, reading aloud produced repetition enhancement in the left inferior parietal lobe associated with print-to-sound conversion and ventral premotor cortex. Analyses of effective connectivity revealed that the task set for reading generated reciprocal excitatory connections between the left inferior parietal and superior temporal regions, reflecting the audiovisual integration required for vocalization, whereas categorization did not produce such backward projection to posterior regions. Thus, masked repetition priming involves two distinct components in the task-specific neural streams, one in the parietotemporal cortex for task-specific word processing and the other in the premotor cortex for behavioral response preparation. The top-down influence of task sets further changes the directions of the unconscious priming in the entire cerebral circuitry for reading.

Task-specific change of unconscious neural priming in the cerebral language network. Publishing Authors By Initials

K Nakamura,S Dehaene,A Jobert,D Le Bihan,S Kouider,K Nakamura,S Dehaene,A Jobert,D Le Bihan,S Kouider,K Nakamura,S Dehaene,A Jobert,D Le Bihan,S Kouider,

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Task-specific change of unconscious neural priming in the cerebral language network. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Proceedings of the National Academy of Sciences of

VOLUME: 104

Page Numbers: 19643-8

Journal Abbreviation: Proc. Natl. Acad. Sci. U.S.A.

ISSN: 1091-6490

DAY: 27

MONTH: 11

YEAR: 2007

Task-specific change of unconscious neural priming in the cerebral language network. Information

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LANGUAGE: eng

NlmUniqueID: 7505876

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AFFILIATION: Laboratoire des Sciences Cognitives et Psycholinguistique, L'Ecole des Hautes Etudes en Sciences Sociales/Centre National de la Recherche Scientifique/Ecole Normale Supérieure, 75005 Paris, France.

Country: United States

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MEDLINETA: Proc Natl Acad Sci U S A

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