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The role of the right inferior frontal gyrus: inhibition and attentional control

The role of the right inferior frontal gyrus: inhibition and attentional control
The role of the right inferior frontal gyrus: inhibition and attentional control

There is growing interest regarding the role of the right inferior frontal gyrus (RIFG) during a particular form of executive control referred to as response inhibition. However, tasks used to examine neural activity at the point of response inhibition have rarely controlled for the potentially confounding effects of attentional demand. In particular, it is unclear whether the RIFG is specifically involved in inhibitory control, or is involved more generally in the detection of salient or task relevant cues. The current fMRI study sought to clarify the role of the RIFG in executive control by holding the stimulus conditions of one of the most popular response inhibition tasks-the Stop Signal Task-constant, whilst varying the response that was required on reception of the stop signal cue. Our results reveal that the RIFG is recruited when important cues are detected, regardless of whether that detection is followed by the inhibition of a motor response, the generation of a motor response, or no external response at all.

1053-8119
1313-1319
Hampshire, Adam
08af1acb-f59f-4f42-a1ca-99fd2fb66da2
Chamberlain, Samuel R.
8a0e09e6-f51f-4039-9287-88debe8d8b6f
Monti, Martin M.
b2de6d91-3d9b-4146-8df7-7d03ac2a8baf
Duncan, John
b081bed9-2bc3-4346-aa1e-d4ff7e1ddbe7
Owen, Adrian M.
3f478b09-9ee9-41c7-8027-f72441cd6525
Hampshire, Adam
08af1acb-f59f-4f42-a1ca-99fd2fb66da2
Chamberlain, Samuel R.
8a0e09e6-f51f-4039-9287-88debe8d8b6f
Monti, Martin M.
b2de6d91-3d9b-4146-8df7-7d03ac2a8baf
Duncan, John
b081bed9-2bc3-4346-aa1e-d4ff7e1ddbe7
Owen, Adrian M.
3f478b09-9ee9-41c7-8027-f72441cd6525

Hampshire, Adam, Chamberlain, Samuel R., Monti, Martin M., Duncan, John and Owen, Adrian M. (2010) The role of the right inferior frontal gyrus: inhibition and attentional control. NeuroImage, 50 (3), 1313-1319. (doi:10.1016/j.neuroimage.2009.12.109).

Record type: Article

Abstract

There is growing interest regarding the role of the right inferior frontal gyrus (RIFG) during a particular form of executive control referred to as response inhibition. However, tasks used to examine neural activity at the point of response inhibition have rarely controlled for the potentially confounding effects of attentional demand. In particular, it is unclear whether the RIFG is specifically involved in inhibitory control, or is involved more generally in the detection of salient or task relevant cues. The current fMRI study sought to clarify the role of the RIFG in executive control by holding the stimulus conditions of one of the most popular response inhibition tasks-the Stop Signal Task-constant, whilst varying the response that was required on reception of the stop signal cue. Our results reveal that the RIFG is recruited when important cues are detected, regardless of whether that detection is followed by the inhibition of a motor response, the generation of a motor response, or no external response at all.

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Published date: 15 April 2010

Identifiers

Local EPrints ID: 493045
URI: http://eprints.soton.ac.uk/id/eprint/493045
ISSN: 1053-8119
PURE UUID: 674a2d0f-f001-4617-ac11-301b81132aff
ORCID for Samuel R. Chamberlain: ORCID iD orcid.org/0000-0001-7014-8121

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Date deposited: 22 Aug 2024 16:34
Last modified: 23 Aug 2024 01:59

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Contributors

Author: Adam Hampshire
Author: Samuel R. Chamberlain ORCID iD
Author: Martin M. Monti
Author: John Duncan
Author: Adrian M. Owen

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