We used magnetoencephalography (MEG) to map the spatiotemporal evolution
of cortical activity for visual word recognition. We show that for
five-letter words, activity in the left hemisphere (LH) fusiform
gyrus expands systematically in both the posterior-anterior and medial-lateral
directions over the course of the first 500 ms after stimulus presentation.
Contrary to what would be expected from cognitive models and hemodynamic
studies, the component of this activity that spatially coincides
with the visual word form area (VWFA) is not active until around
200 ms post-stimulus, and critically, this activity is preceded by
and co-active with activity in parts of the inferior frontal gyrus
(IFG, BA44/6). The spread of activity in the VWFA for words does
not appear in isolation but is co-active in parallel with spread
of activity in anterior middle temporal gyrus (aMTG, BA 21 and 38),
posterior middle temporal gyrus (pMTG, BA37/39), and IFG.
%0 Journal Article
%1 Pammer2004
%A Pammer, Kristen
%A Hansen, Peter C
%A Kringelbach, Morten L
%A Holliday, Ian
%A Barnes, Gareth
%A Hillebrand, Arjan
%A Singh, Krish D
%A Cornelissen, Piers L
%D 2004
%J Neuroimage
%K Adult; Aged; Brain Cerebral; Computer-Assisted; Decision Dominance, Evoked Female; Gov't; Humans; Image Imaging, Learning Magnetics; Magnetoencephalography; Making; Male; Mapping; Memory, Middle Non-U.S. Pattern Potentials, Processing, Reading; Recognition, Research Short-Term; Support, Three-Dimensional; Verbal Visual;
%P 1819--1825
%R 10.1016/j.neuroimage.2004.05.004
%T Visual word recognition: the first half second.
%U http://dx.doi.org/10.1016/j.neuroimage.2004.05.004
%V 22
%X We used magnetoencephalography (MEG) to map the spatiotemporal evolution
of cortical activity for visual word recognition. We show that for
five-letter words, activity in the left hemisphere (LH) fusiform
gyrus expands systematically in both the posterior-anterior and medial-lateral
directions over the course of the first 500 ms after stimulus presentation.
Contrary to what would be expected from cognitive models and hemodynamic
studies, the component of this activity that spatially coincides
with the visual word form area (VWFA) is not active until around
200 ms post-stimulus, and critically, this activity is preceded by
and co-active with activity in parts of the inferior frontal gyrus
(IFG, BA44/6). The spread of activity in the VWFA for words does
not appear in isolation but is co-active in parallel with spread
of activity in anterior middle temporal gyrus (aMTG, BA 21 and 38),
posterior middle temporal gyrus (pMTG, BA37/39), and IFG.
@article{Pammer2004,
abstract = {We used magnetoencephalography (MEG) to map the spatiotemporal evolution
of cortical activity for visual word recognition. We show that for
five-letter words, activity in the left hemisphere (LH) fusiform
gyrus expands systematically in both the posterior-anterior and medial-lateral
directions over the course of the first 500 ms after stimulus presentation.
Contrary to what would be expected from cognitive models and hemodynamic
studies, the component of this activity that spatially coincides
with the visual word form area (VWFA) is not active until around
200 ms post-stimulus, and critically, this activity is preceded by
and co-active with activity in parts of the inferior frontal gyrus
(IFG, BA44/6). The spread of activity in the VWFA for words does
not appear in isolation but is co-active in parallel with spread
of activity in anterior middle temporal gyrus (aMTG, BA 21 and 38),
posterior middle temporal gyrus (pMTG, BA37/39), and IFG.},
added-at = {2007-12-16T20:00:22.000+0100},
author = {Pammer, Kristen and Hansen, Peter C and Kringelbach, Morten L and Holliday, Ian and Barnes, Gareth and Hillebrand, Arjan and Singh, Krish D and Cornelissen, Piers L},
biburl = {https://www.bibsonomy.org/bibtex/242e9e0b9ad87f68c76f3d2e7db03cde0/perceptron},
doi = {10.1016/j.neuroimage.2004.05.004},
interhash = {d7add77c98f0fccbb1212d39df07e756},
intrahash = {42e9e0b9ad87f68c76f3d2e7db03cde0},
journal = {Neuroimage},
keywords = {Adult; Aged; Brain Cerebral; Computer-Assisted; Decision Dominance, Evoked Female; Gov't; Humans; Image Imaging, Learning Magnetics; Magnetoencephalography; Making; Male; Mapping; Memory, Middle Non-U.S. Pattern Potentials, Processing, Reading; Recognition, Research Short-Term; Support, Three-Dimensional; Verbal Visual;},
pages = {1819--1825},
pii = {S1053811904002708},
pmid = {15275938},
timestamp = {2007-12-16T20:00:25.000+0100},
title = {Visual word recognition: the first half second.},
url = {http://dx.doi.org/10.1016/j.neuroimage.2004.05.004},
volume = 22,
year = 2004
}