Cited by 59Reading and Literacy DevelopmentNeurobiology of Language and BilingualismFace Recognition and Perception

Combined ERP/fMRI evidence for early word recognition effects in the posterior inferior temporal gyrus

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Dien, Joseph, Brian, Eric S., Molfese, Dennis L., Gold, Brian T.·2013·Cortex

Abstract

Two brain regions with established roles in reading are the posterior middle temporal gyrus and the posterior fusiform gyrus (FG). Lesion studies have also suggested that the region located between them, the posterior inferior temporal gyrus (pITG), plays a central role in word recognition. However, these lesion results could reflect disconnection effects since neuroimaging studies have not reported consistent lexicality effects in pITG. Here we tested whether these reported pITG lesion effects are due to disconnection effects or not using parallel Event-related Potentials (ERP)/functional magnetic resonance imaging (fMRI) studies. We predicted that the Recognition Potential (RP), a left-lateralized ERP negativity that peaks at about 200-250 msec, might be the electrophysiological correlate of pITG activity and that conditions that evoke the RP (perceptual degradation) might therefore also evoke pITG activity. In Experiment 1, twenty-three participants performed a lexical decision task (temporally flanked by supraliminal masks) while having high-density 129-channel ERP data collected. In Experiment 2, a separate group of fifteen participants underwent the same task while having fMRI data collected in a 3T scanner. Examination of the ERP data suggested that a canonical RP effect was produced. The strongest corresponding effect in the fMRI data was in the vicinity of the pITG. In addition, results indicated stimulus-dependent functional connectivity between pITG and a region of the posterior FG near the Visual Word Form Area (VWFA) during word compared to nonword processing. These results provide convergent spatiotemporal evidence that the pITG contributes to early lexical access through interaction with the VWFA.

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Authors
Dien, J., Brian, E. S., Molfese, D. L., & Gold, B. T.
Affiliations
  • University of Louisville (US)
  • University of Nebraska–Lincoln (US)
  • University of Kentucky (US)
Corresponding author
Dien, Joseph
Venue
Cortex
Publisher
Elsevier BV
Published
2013-10
Volume
49
Issue
9
Pages
2307-2321
ISSN
0010-9452 (ISSN-L)
OpenAlex
W2052051021
Cited by
59
References
109
Citations by year
2026: 5 · 2025: 4 · 2024: 3 · 2023: 6 · 2022: 7 · 2021: 8 · 2020: 6 · 2019: 8 · 2018: 3 · 2017: 3 · 2016: 2 · 2015: 2 · 2014: 2
FWCI
4.12
Type
journal article
Language
en
Open access
Locations
  • Cortex (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Lincoln (University of Nebraska) (submittedVersion)
Funders
  • NASA (SA23-06-015)
  • National Institutes of Health (DC007315, AG033036)
  • National Science Foundation (BCS-0814302)
Topics
  • Social Sciences › Psychology › Developmental and Educational Psychology › Reading and Literacy Development
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Face Recognition and Perception
Keywords
word recognition, visual word form area, posterior fusiform gyrus, posterior middle temporal gyrus, lexical decision, perceptual degradation, functional connectivity, reading
MeSH terms
Adolescent, Adult, Brain, Brain Mapping, Evoked Potentials, Humans, Image Processing, Computer-Assisted, Functional Laterality, Magnetic Resonance Imaging, Reaction Time, Reading, Visual Perception, Recognition, Psychology, Young Adult

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