Cited by 745Neural and Behavioral Psychology StudiesHistorical and Modern Theater StudiesNeurobiology of Language and Bilingualism

Left inferior frontal gyrus is critical for response inhibition

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Swick, Diane, Ashley, Victoria, Turken, And U·2008·BMC Neuroscience

Abstract

BACKGROUND: Lesion studies in human and non-human primates have linked several different regions of prefrontal cortex (PFC) with the ability to inhibit inappropriate motor responses. However, recent functional neuroimaging studies have specifically implicated right inferior PFC in response inhibition. Right frontal dominance for inhibitory motor control has become a commonly accepted view, although support for this position has not been consistent. Particularly conspicuous is the lack of data on the importance of the homologous region in the left hemisphere. To investigate whether the left inferior frontal gyrus (IFG) is critical for response inhibition, we used neuropsychological methodology with carefully characterized brain lesions in neurological patients. RESULTS: Twelve individuals with damage in the left IFG and the insula were tested in a Go/NoGo response inhibition task. In alternating blocks, the difficulty of response inhibition was easy (50% NoGo trials) or hard (10% NoGo trials). Controls showed the predicted pattern of faster reaction times and more false alarm errors in the hard condition. Left IFG patients had higher error rates than controls in both conditions, but were more impaired in the hard condition, when a greater degree of inhibitory control was required. In contrast, a patient control group with orbitofrontal cortex lesions showed intact performance. CONCLUSION: Recent neuroimaging studies have focused on a highly specific association between right IFG and inhibitory control. The present results indicate that the integrity of left IFG is also critical for successful implementation of inhibitory control over motor responses. Our findings demonstrate the importance of obtaining converging evidence from multiple methodologies in cognitive neuroscience.

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  • Activity in the anterior insular cortex is common in studies of cognitive control and inhibitory processing and in studies of reward sensitivity.

    “Indeed, activity in the AIC is a common feature in studies of cognitive control and inhibitory processing [7, 46–50] and reward sensitivity [8, 9].”

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Authors
Swick, D., Ashley, V., & Turken, A. U.
Affiliations
VA Northern California Health Care System (US)
Venue
BMC Neuroscience
Published
2008-10-21
Volume
9
Issue
1
Pages
102-102
ISSN
1471-2202 (ISSN-L)
OpenAlex
W2096972053
Cited by
745
References
69
Citations by year
2026: 27 · 2025: 48 · 2024: 46 · 2023: 40 · 2022: 56 · 2021: 71 · 2020: 61 · 2019: 52 · 2018: 41 · 2017: 42 · 2016: 46 · 2015: 45 · 2014: 46 · 2013: 30 · 2012: 27
FWCI
11.20
Type
journal article
Language
en
Open access
Locations
  • BMC Neuroscience (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • National Science Foundation
  • National Center for Research Resources (M01RR019975)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Social Sciences › Psychology › Clinical Psychology › Historical and Modern Theater Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
Keywords
response inhibition, left inferior frontal gyrus, inhibitory control, go/no-go task, brain lesions, insula, orbitofrontal cortex, hemispheric lateralization, false alarm errors, reaction time
MeSH terms
Adult, Aged, Brain Injuries, Fingers, Humans, Functional Laterality, Middle Aged, Neural Inhibition, Pattern Recognition, Visual, Photic Stimulation, Psychomotor Performance, Reaction Time, Prefrontal Cortex

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