Semantic interference in object naming: An fMRI study of the postcue naming paradigm

Hocking, J., McMahon, K.L. and de Zubicaray, G.I. (2010) Semantic interference in object naming: An fMRI study of the postcue naming paradigm. NeuroImage, 50 2: 796-801. doi:10.1016/j.neuroimage.2009.12.067


Author Hocking, J.
McMahon, K.L.
de Zubicaray, G.I.
Title Semantic interference in object naming: An fMRI study of the postcue naming paradigm
Journal name NeuroImage   Check publisher's open access policy
ISSN 1053-8119
Publication date 2010-04-01
Sub-type Article (original research)
DOI 10.1016/j.neuroimage.2009.12.067
Volume 50
Issue 2
Start page 796
End page 801
Total pages 6
Editor J. C. Mazziotta
R. S. J. Frackowiak
K. J. Friston
Place of publication United States
Publisher Academic Press
Collection year 2011
Language eng
Abstract It is well established that the time to name target objects can be influenced by the presence of categorically related versus unrelated distractor items. A variety of paradigms have been developed to determine the level at which this semantic interference effect occurs in the speech production system. In this study, we investigated one of these tasks, the postcue naming paradigm, for the first time with fMRI. Previous behavioural studies using this paradigm have produced conflicting interpretations of the processing level at which the semantic interference effect takes place, ranging from pre- to post-lexical. Here we used fMRI with a sparse, event-related design to adjudicate between these competing explanations. We replicated the behavioural postcue naming effect for categorically related target/distractor pairs, and observed a corresponding increase in neuronal activation in the right lingual and fusiform gyri-regions previously associated with visual object processing and colour-form integration. We interpret these findings as being consistent with an account that places the semantic interference effect in the postcue paradigm at a processing level involving integration of object attributes in short-term memory. © 2009 Elsevier Inc. All rights reserved.
Keyword Event-related FMRI
Human color-center
Word production
Neural substrate
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Psychology Publications
Centre for Advanced Imaging Publications
 
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Created: Sun, 14 Mar 2010, 10:01:57 EST