Cited by 97Reading and Literacy DevelopmentNeurobiology of Language and BilingualismFace Recognition and Perception

Dissociating stimulus-driven semantic and phonological effect during reading and naming

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Mechelli, Andrea, Josephs, Oliver, Lambon Ralph, Matthew A., McClelland, James L., Price, Cathy J.·2007·Human Brain Mapping

Abstract

The aim of the present study was to dissociate the neural correlates of semantic and phonological processes during word reading and picture naming. Previous studies have addressed this issue by contrasting tasks involving semantic and phonological decisions. However, these tasks engage verbal short-term memory and executive functions that are not required for reading and naming. Here, 20 subjects were instructed to overtly name written words and pictures of objects while their neuronal responses were measured using functional magnetic resonance imaging (fMRI). Each trial consisted of a pair of successive stimuli that were either semantically related (e.g., "ROBIN-nest"), phonologically related (e.g., "BELL-belt"), unrelated (e.g., "KITE-lobster"), or semantically and phonologically identical (e.g., "FRIDGE-fridge"). In addition, a pair of stimuli could be presented in either the same modality (word-word or picture-picture) or a different modality (word-picture or picture-word). We report that semantically related pairs modulate neuronal responses in a left-lateralized network, including the pars orbitalis of the inferior frontal gyrus, the middle temporal gyrus, the angular gyrus, and the superior frontal gyrus. We propose that these areas are involved in stimulus-driven semantic processes. In contrast, phonologically related pairs modulate neuronal responses in bilateral insula. This region is therefore implicated in the discrimination of similar, competing phonological and articulatory codes. The above effects were detected with both words and pictures and did not differ between the two modalities even with a less conservative statistical threshold. In conclusion, this study dissociates the effects of semantic and phonological relatedness between successive items during reading and naming aloud.

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Authors
Mechelli, A., Josephs, O., Lambon Ralph, M. A., McClelland, J. L., & Price, C. J.
Affiliations
  • King's College London (GB)
  • Wellcome Trust (GB)
  • Center for the Neural Basis of Cognition (US)
Corresponding author
Mechelli, Andrea
Venue
Human Brain Mapping
Publisher
Wiley
Published
2007-02-13
Volume
28
Issue
3
Pages
205-217
ISSN
  • 1065-9471 (ISSN-L)
  • 1097-0193
OpenAlex
W2097117521
Cited by
97
References
60
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 1 · 2022: 5 · 2021: 4 · 2020: 3 · 2019: 8 · 2018: 8 · 2017: 5 · 2016: 4 · 2015: 4 · 2014: 6 · 2013: 4 · 2012: 9
FWCI
10.17
Type
journal article
Language
en
Open access
Locations
  • Human Brain Mapping (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Research Explorer (The University of Manchester) (publishedVersion, other-oa)
  • UCL Discovery (University College London) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
Wellcome Trust (051067)
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
semantic relatedness, phonological relatedness, word reading, picture naming, phonological processing, insula, inferior frontal gyrus, angular gyrus, middle temporal gyrus, superior frontal gyrus, modality effects
MeSH terms
Adolescent, Adult, Brain, Brain Mapping, Child, Child, Preschool, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Phonetics, Photic Stimulation, Reading, Semantics, Speech, Visual Perception

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