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Visual word recognition: the first half second

Pammer, Kristen; Hansen, Peter; Kringelbach, Morton L; Holliday, Ian; Barnes, Gareth; Hillebrand, Arjan; Singh, Krish; Cornelissen, Piers

Description

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...[Show more]

dc.contributor.authorPammer, Kristen
dc.contributor.authorHansen, Peter
dc.contributor.authorKringelbach, Morton L
dc.contributor.authorHolliday, Ian
dc.contributor.authorBarnes, Gareth
dc.contributor.authorHillebrand, Arjan
dc.contributor.authorSingh, Krish
dc.contributor.authorCornelissen, Piers
dc.date.accessioned2015-12-07T22:24:52Z
dc.identifier.issn1053-8119
dc.identifier.urihttp://hdl.handle.net/1885/21019
dc.description.abstractWe 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.
dc.publisherAcademic Press
dc.sourceNeuroimage
dc.subjectKeywords: adult; article; brain asymmetry; brain cortex; clinical article; cognition; controlled study; female; frontal cortex; hemisphere; hemodynamics; human; magnetoencephalography; male; priority journal; spindle cell; temporal cortex; visual memory; visual sti Inferior frontal gyrus; Reading; Visual analyzer; Visual word form
dc.titleVisual word recognition: the first half second
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume22
dc.date.issued2004
local.identifier.absfor170101 - Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
local.identifier.ariespublicationu4024396xPUB15
local.type.statusPublished Version
local.contributor.affiliationPammer, Kristen, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationHansen, Peter, University of Oxford
local.contributor.affiliationKringelbach, Morton L, University of Oxford
local.contributor.affiliationHolliday, Ian , Aston University
local.contributor.affiliationBarnes, Gareth, Aston University
local.contributor.affiliationHillebrand, Arjan, Aston University
local.contributor.affiliationSingh, Krish, Aston University
local.contributor.affiliationCornelissen, Piers, Newcastle University
local.description.embargo2037-12-31
local.bibliographicCitation.startpage1819
local.bibliographicCitation.lastpage1825
local.identifier.doi10.1016/j.neuroimage.2004.05.004
dc.date.updated2015-12-07T09:29:33Z
local.identifier.scopusID2-s2.0-3242673595
CollectionsANU Research Publications

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