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Cited by 18Neural and Behavioral Psychology StudiesNeurobiology of Language and BilingualismCognitive Functions and Memory

Within-task switching in the verbal domain

Gurd, Jennifer M., Weiss, Peter H., Amunts, Katrin, Fink, Gereon R.·2003·NeuroImage
DOI 10.1016/j.neuroimage.2003.09.022
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Abstract

Task-switching, a term that covers a wide range of different cognitive processes, is a topic of considerable current interest. We draw particular attention to verbal within-task switching in neurological patients and healthy volunteers. The paradigm employs two types of fluency tasks: (i) semantic category verbal fluency in which subjects covertly produce words from a predefined superordinate semantic category and (ii) automatic speech tasks in which subjects produce words from overlearned sequences. In the single-category conditions, words are produced from one category at a time; in the switching conditions, words are produced alternately from three categories. For example, the semantic categories could be fruits, cars, and furniture and the automatic categories could be days of the week, letters of the alphabet, and months of the year. In a previous fMRI study of healthy volunteers, the main group effect of switching (semantic category and automatic speech) relative to single-category fluency (semantic category and automatic speech) showed significant activations (p < 0.05 corrected) only in bilateral superior posterior parietal cortex, Brain 125, 1024-1038). There was no significant prefrontal activation as a main effect of switching. In this paper we present further results from that experiment which show a surprising lack of consistent frontal lobe switch activations in single-subject analyses. These findings are discussed in relation to other neuroimaging studies of task-switching and the role of convergent neuropsychological data from patients with neurodegenerative disease.

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Authors
Gurd, J. M., Weiss, P. H., Amunts, K., & Fink, G. R.
Affiliations
  • University of Hertfordshire (GB)
  • Forschungszentrum Jülich (DE)
Corresponding author
Gurd, Jennifer M.
ORCID
Venue
NeuroImage
Publisher
Elsevier BV
Published
2003-11
Volume
20
Pages
S50-S57
ISSN
1053-8119 (ISSN-L)
DOI
10.1016/j.neuroimage.2003.09.022
OpenAlex
W2092691136
Cited by
18
References
53
Citations by year
2025: 1 · 2022: 1 · 2015: 1 · 2014: 1 · 2013: 4
FWCI
0.33
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
  • JuSER (Forschungszentrum Jülich) (submittedVersion)
  • RWTH Publications (RWTH Aachen) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Functions and Memory
Keywords
task switching, verbal fluency, superior parietal cortex, frontal lobe activation, single-subject analysis, neurodegenerative diseases, neuropsychology
MeSH terms
Brain, Brain Mapping, Cognition, Cognition Disorders, Frontal Lobe, Humans, Speech

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