2007
DOI: 10.1523/jneurosci.0519-07.2007
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Triangulating a Cognitive Control Network Using Diffusion-Weighted Magnetic Resonance Imaging (MRI) and Functional MRI

Abstract: The ability to stop motor responses depends critically on the right inferior frontal cortex (IFC) and also engages a midbrain region consistent with the subthalamic nucleus (STN). Here we used diffusion-weighted imaging (DWI) tractography to show that the IFC and the STN region are connected via a white matter tract, which could underlie a "hyperdirect" pathway for basal ganglia control. Using a novel method of "triangulation" analysis of tractography data, we also found that both the IFC and the STN region ar… Show more

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Cited by 876 publications
(976 citation statements)
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References 63 publications
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“…The right IFG may make a direct contribution via its connections with subcortical motor areas such as the subthalamic nucleus (Aron et al, 2007). Or, it may make an indirect contribution by signaling the presence of infrequent relevant stimuli to the dorsal attention network and other control regions (Doricchi et al, 2010;Shulman et al, 2009) which, in turn, inhibit responses that are no longer relevant (Sharp et al, 2010).…”
Section: Discussionmentioning
confidence: 99%
“…The right IFG may make a direct contribution via its connections with subcortical motor areas such as the subthalamic nucleus (Aron et al, 2007). Or, it may make an indirect contribution by signaling the presence of infrequent relevant stimuli to the dorsal attention network and other control regions (Doricchi et al, 2010;Shulman et al, 2009) which, in turn, inhibit responses that are no longer relevant (Sharp et al, 2010).…”
Section: Discussionmentioning
confidence: 99%
“…The rIFG is part of a putative inhibition network, connected via a direct pathway with the subthalamic nucleus (STN), both of which are connected with the pre-SMA (Aron, 2007). Aron et al (2007) propose that the rIFG implements inhibition at a neural level by activating the STN, which activates the globus pallidus, resulting in thalamo-motorcortical inhibition. The pre-SMA could have a conflict monitoring function or implement neural inhibition directly via the STN.…”
Section: Discussionmentioning
confidence: 99%
“…It is thought that response inhibition is substantiated via the recruitment of the fronto-striatal circuits (Aron et al 2007), a network of connections between the prefrontal cortex and the striatal system (the brain's reward network). This system constitutes a bidirectional system of initiation of behavior and impulse control with regions in the medial and lateral prefrontal cortex.…”
Section: Overlapping Neural Correlates Of Efmentioning
confidence: 99%
“…This system constitutes a bidirectional system of initiation of behavior and impulse control with regions in the medial and lateral prefrontal cortex. Deficits in impulse control are associated with low activity in the right PFC (Aron et al 2004) and diminished PFC connections with the striatal system (Aron et al 2007), suggesting the importance of the PFC's role in mediating and stopping impulsive behaviors. Moreover, deficits in the striatal system due to conditions like Parkinson's disease restrict functioning of the PFC and result in poor performance on inhibitory tasks (Middleton and Strick 2001).…”
Section: Overlapping Neural Correlates Of Efmentioning
confidence: 99%
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