Document Detail

Developmental trajectories of magnitude processing and interference control: an FMRI study.
MedLine Citation:
PMID:  19357393     Owner:  NLM     Status:  MEDLINE    
Neurodevelopmental changes regarding interference and magnitude processing were assessed in 3 age groups (children, n = 10; young adults, n = 11; elderly participants, n = 9) by using an functional magnetic resonance imaging version of the numerical Stroop task. Behaviorally, comparable distance and size congruity effects were found in all 3 age groups. Distance effects were most pronounced in the more difficult numerical task, whereas size congruity effects were comparable across tasks. In response to interference, an age-linear trend in the pattern of activation in left and right prefrontal and left middle temporal regions of the brain was observed. This implicates that with increasing age interference control requires increasing effort (possible explanations for children's relatively lower interference effects are provided). In contrast, the distance effect produced a negative linear trend in right prefrontal, supplementary motor area, and intraparietal cortex. This suggests that relative to old adults, children and young adults had to recruit a larger network upon processing magnitude. The latter findings are even more remarkable considering that the behavioral effects were similar across groups. In summary, the developmental trajectories of interference control and magnitude processing differ, although these cognitive functions activate partially overlapping brain regions.
Guilherme Wood; Anja Ischebeck; Florian Koppelstaetter; Thaddaeus Gotwald; Liane Kaufmann
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-04-08
Journal Detail:
Title:  Cerebral cortex (New York, N.Y. : 1991)     Volume:  19     ISSN:  1460-2199     ISO Abbreviation:  Cereb. Cortex     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-10-08     Completed Date:  2010-01-04     Revised Date:  2013-06-02    
Medline Journal Info:
Nlm Unique ID:  9110718     Medline TA:  Cereb Cortex     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2755-65     Citation Subset:  IM    
Department of Psychology, University of Salzburg, A-5020 Salzburg, Austria.
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MeSH Terms
Aged, 80 and over
Aging / physiology*
Brain / physiology*
Conflict (Psychology)*
Decision Making / physiology*
Inhibition (Psychology)*
Magnetic Resonance Imaging / methods*
Middle Aged
Stroop Test
Task Performance and Analysis*
Young Adult
Grant Support
T 286-B05//Austrian Science Fund FWF

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