Functional dissociation of the inferior frontal junction from the dorsal attention network in top-down attentional control

Journal of Neurophysiology
Benjamin J Tamber-RosenauRené Marois

Abstract

The posterior lateral prefrontal cortex-specifically, the inferior frontal junction (IFJ)-is thought to exert a key role in the control of attention. However, the precise nature of that role remains elusive. During the voluntary deployment and maintenance of visuospatial attention, the IFJ is typically coactivated with a core dorsal network consisting of the frontal eye field and superior parietal cortex. During stimulus-driven attention, IFJ instead couples with a ventrolateral network, suggesting that IFJ plays a role in attention distinct from the dorsal network. Because IFJ rapidly switches activation patterns to accommodate conditions of goal-directed and stimulus-driven attention (Asplund CL, Todd JJ, Snyder AP, Marois R. Nat Neurosci 13: 507-512, 2010), we hypothesized that IFJ's primary role is to dynamically reconfigure attention rather than to maintain attention under steady-state conditions. This hypothesis predicts that in a goal-directed visuospatial cuing paradigm IFJ would transiently deploy attention toward the cued location, whereas the dorsal attention network would maintain attentional weights during the delay between cue and target presentation. Here we tested this hypothesis with functional magnetic resonan...Continue Reading

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Citations

Nov 11, 2019·Brain Topography·Lucina Q UddinR Nathan Spreng
Jul 28, 2020·European Archives of Psychiatry and Clinical Neuroscience·Lisa RauerOliver Gruber
Dec 22, 2020·Frontiers in Aging Neuroscience·Yasuharu YamamotoMasaru Mimura
Sep 2, 2021·NeuroImage·Jennifer PompRicarda I Schubotz

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Software Mentioned

MATLAB
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