Charting the functional relevance of Broca's area for visual word recognition and picture naming in Dutch using fMRI-guided TMS
Magnetoencephalography (MEG) has shown pseudohomophone priming effects at Broca's area (specifically pars opercularis of left inferior frontal gyrus and precentral gyrus; LIFGpo/PCG) within approximately 100ms of viewing a word. This is consistent with Broca's area involvement in fast phonological access during visual word recognition. Here we used online transcranial magnetic stimulation (TMS) to investigate whether LIFGpo/PCG is necessary for (not just correlated with) visual word recognition by approximately 100ms. Pulses were delivered to individually fMRI-defined LIFGpo/PCG in Dutch speak... Mehr ...
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Dokumenttyp: | Artikel |
Erscheinungsdatum: | 2013 |
Reihe/Periodikum: | Wheat , K L , Cornelissen , P L , Sack , A T , Schuhmann , T , Goebel , R & Blomert , L 2013 , ' Charting the functional relevance of Broca's area for visual word recognition and picture naming in Dutch using fMRI-guided TMS ' , Brain and Language , vol. 125 , no. 2 , pp. 223-230 . https://doi.org/10.1016/j.bandl.2012.04.016 |
Sprache: | Englisch |
Permalink: | https://search.fid-benelux.de/Record/base-26663891 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | https://cris.maastrichtuniversity.nl/en/publications/18bc63fe-fe24-4af1-a663-7bda3a4cd654 |
Magnetoencephalography (MEG) has shown pseudohomophone priming effects at Broca's area (specifically pars opercularis of left inferior frontal gyrus and precentral gyrus; LIFGpo/PCG) within approximately 100ms of viewing a word. This is consistent with Broca's area involvement in fast phonological access during visual word recognition. Here we used online transcranial magnetic stimulation (TMS) to investigate whether LIFGpo/PCG is necessary for (not just correlated with) visual word recognition by approximately 100ms. Pulses were delivered to individually fMRI-defined LIFGpo/PCG in Dutch speakers 75-500ms after stimulus onset during reading and picture naming. Reading and picture naming reactions times were significantly slower following pulses at 225-300ms. Contrary to predictions, there was no disruption to reading for pulses before 225ms. This does not provide evidence in favour of a functional role for LIFGpo/PCG in reading before 225ms in this case, but does extend previous findings in picture stimuli to written Dutch words.