Article (Scientific journals)
Modulation of brain activity during phonological familiarization
Majerus, Steve; Van der Linden, Martial; Collette, Fabienne et al.
2005In Brain and Language, 92 (3), p. 320-331
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Keywords :
Phonological processing; Phonological learning; Temporal lobe; Superior temporal gyrus; PET
Abstract :
[en] We measured brain activity in 12 adults for the repetition of auditorily presented words and nonwords, before and after repeated exposure to their phonological form. The nonword phoneme combinations were either of high (HF) or low (LF) phonotactic frequency. After familiarization, we observed, for both word and nonword conditions, decreased activation in the left posterior superior temporal gyrus, in the bilateral temporal pole and middle temporal gyri. At the same time, interaction analysis showed that the magnitude of decrease of activity in bilateral posterior temporal lobe was significantly smaller for LF nonwords, relative to words and HF nonwords. Decrease of activity in this area also correlated with the size of behavioral familiarization effects for LF nonwords. The results show that the posterior superior temporal gyrus plays a fundamental role during phonological learning. Its relationship to sublexical and lexical phonological processing as well as to phonological short-term memory is discussed. (c) 2004 Elsevier Inc. All rights reserved.
Disciplines :
Neurosciences & behavior
Author, co-author :
Majerus, Steve  ;  Université de Liège - ULiège > Département des sciences cognitives > Psychopathologie cognitive
Van der Linden, Martial ;  Université de Liège - ULiège > Département des sciences cognitives > Psychopathologie cognitive
Collette, Fabienne  ;  Université de Liège - ULiège > Département des sciences cognitives > Neuropsychologie
Laureys, Steven  ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Poncelet, Martine ;  Université de Liège - ULiège > Département des sciences cognitives > Neuropsychologie des troubles du langage
Degueldre, Christian ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Delfiore, Guy
Luxen, André ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie organique de synthèse - Centre de recherches du cyclotron
Salmon, Eric  ;  Université de Liège - ULiège > Département des sciences cliniques > Neuroimagerie des troubles de la mémoire et révalid. cogn.
Language :
English
Title :
Modulation of brain activity during phonological familiarization
Publication date :
March 2005
Journal title :
Brain and Language
ISSN :
0093-934X
eISSN :
1090-2155
Publisher :
Academic Press (Elsevier), San Diego, United States - California
Volume :
92
Issue :
3
Pages :
320-331
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 January 2009

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