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Research article summary:

Switching attention and resolving interference: fMRI measures of executive functions.

Abstract Extract:
Is there a single executive process or are there multiple executive processes that work together towards the same goal in some task? In these experiments, we use counter switching and response inhibition tasks to examine the neural underpinnings of two ... (Full abstract text below)

Published 2003 in Journal: Neuropsychologia (Language : eng)

Full Pubmed Extract

This information was retrieved, real-time, on your behalf from the public area of the Pubmed website:

1. Neuropsychologia. 2003 ;41(3):357-70

Switching attention and resolving interference: fMRI measures of executive functions.

Sylvester CY, Wager TD, Lacey SC, Hernandez L, Nichols TE, Smith EE, Jonides J

Department of Psychology, University of Michigan, 525 E University, Ann Arbor, MI 48109-1109, USA. yunecs@umich.edu

Is there a single executive process or are there multiple executive processes that work together towards the same goal in some task? In these experiments, we use counter switching and response inhibition tasks to examine the neural underpinnings of two cognitive processes that have often been identified as potential executive processes: the switching of attention between tasks, and the resolution of interference between competing task responses. Using functional magnetic resonance imaging (fMRI), for both event-related and blocked design tasks, we find evidence for common neural areas across both tasks in bilateral parietal cortex (BA 40), left dorsolateral prefrontal cortex (DLPFC; BA 9), premotor cortex (BA 6) and medial frontal cortex (BA 6/32). However, we also find areas preferentially involved in the switching of attention between mental counts (BA 7, BA 18) and the inhibition of a prepotent motor response (BA 6, BA 10), respectively. These findings provide evidence for the separability of cognitive processes underlying executive control.

PMID : 12457760 [PubMed - Indexed for MEDLINE]


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Full Author Information

First NameLastNameInitials
Ching-Yune CSylvesterCY
Tor DWagerTD
Steven CLaceySC
LuisHernandezL
Thomas ENicholsTE
Edward ESmithEE
JohnJonidesJ

Affiliation: Department of Psychology, University of Michigan, 525 E University, Ann Arbor, MI 48109-1109, USA. yunecs@umich.edu

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This article was linked to the MESH categories shown on the left below. The links on the right are related Memletics pages.

Category links from this article:

  • Adolescent
  • Adult
  • Attention - physiology
  • Brain Mapping - methods
  • Cerebral Cortex - physiology
  • Cognition - physiology
  • Humans
  • Inhibition (Psychology)
  • Magnetic Resonance Imaging
  • Saccades
  • Task Performance and Analysis
   

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