The time course of activity in dorsolateral prefrontal cortex and anterior cingulate cortex during top-down attentional control

Rebecca Levin Silton, Wendy Heller, David N. Towers, Anna S. Engels, Jeffrey M. Spielberg, J. Christopher Edgar, Sarah M. Sass, Jennifer L. Stewart, Bradley P. Sutton, Marie T. Banich, Gregory A. Miller

Research output: Contribution to journalArticle

Abstract

A network of brain regions has been implicated in top-down attentional control, including left dorsolateral prefrontal cortex (LDLPFC) and dorsal anterior cingulate cortex (dACC). The present experiment evaluated predictions of the cascade-of-control model (Banich, 2009), which predicts that during attentionally-demanding tasks, LDLPFC imposes a top-down attentional set which precedes late-stage selection performed by dACC. Furthermore, the cascade-of-control model argues that dACC must increase its activity to compensate when top-down control by LDLPFC is poor. The present study tested these hypotheses using fMRI and dense-array ERP data collected from the same 80 participants in separate sessions. fMRI results guided ERP source modeling to characterize the time course of activity in LDLPFC and dACC. As predicted, dACC activity subsequent to LDLPFC activity distinguished congruent and incongruent conditions on the Stroop task. Furthermore, when LDLPFC activity was low, the level of dACC activity was related to performance outcome. These results demonstrate that dACC responds to attentional demand in a flexible manner that is dependent on the level of LDLPFC activity earlier in a trial. Overall, results were consistent with the temporal course of regional brain function proposed by the cascade-of-control model.

Original languageEnglish (US)
Pages (from-to)1292-1302
Number of pages11
JournalNeuroImage
Volume50
Issue number3
DOIs
StatePublished - Apr 15 2010

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Gyrus Cinguli
Prefrontal Cortex
Magnetic Resonance Imaging
Brain

ASJC Scopus subject areas

  • Neurology
  • Cognitive Neuroscience

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The time course of activity in dorsolateral prefrontal cortex and anterior cingulate cortex during top-down attentional control. / Silton, Rebecca Levin; Heller, Wendy; Towers, David N.; Engels, Anna S.; Spielberg, Jeffrey M.; Edgar, J. Christopher; Sass, Sarah M.; Stewart, Jennifer L.; Sutton, Bradley P.; Banich, Marie T.; Miller, Gregory A.

In: NeuroImage, Vol. 50, No. 3, 15.04.2010, p. 1292-1302.

Research output: Contribution to journalArticle

Silton, RL, Heller, W, Towers, DN, Engels, AS, Spielberg, JM, Edgar, JC, Sass, SM, Stewart, JL, Sutton, BP, Banich, MT & Miller, GA 2010, 'The time course of activity in dorsolateral prefrontal cortex and anterior cingulate cortex during top-down attentional control', NeuroImage, vol. 50, no. 3, pp. 1292-1302. https://doi.org/10.1016/j.neuroimage.2009.12.061
Silton, Rebecca Levin ; Heller, Wendy ; Towers, David N. ; Engels, Anna S. ; Spielberg, Jeffrey M. ; Edgar, J. Christopher ; Sass, Sarah M. ; Stewart, Jennifer L. ; Sutton, Bradley P. ; Banich, Marie T. ; Miller, Gregory A. / The time course of activity in dorsolateral prefrontal cortex and anterior cingulate cortex during top-down attentional control. In: NeuroImage. 2010 ; Vol. 50, No. 3. pp. 1292-1302.
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