Cited by 57Neural and Behavioral Psychology StudiesAttention Deficit Hyperactivity DisorderNeurotransmitter Receptor Influence on Behavior

Methylphenidate Effects on Prefrontal Functioning During Attentional-Capture and Response Inhibition

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Pauls, Astrid M., O'Daly, Owen G., Rubia, Katya, Riedel, Wim J., Williams, Steven C.R., Mehta, Mitul A.·2012·Biological Psychiatry

Abstract

Background Methylphenidate improves motor response inhibition, typically assessed with the stop-signal task. The exact underlying mechanism for this, however, remains unknown. In addition, recent studies highlight that stop signals can have a confounding attentional-capture effect because of their low frequency in the task. In the current study, we assessed the effects of methylphenidate on neural networks of inhibitory control and attentional-capture within the context of two inhibitory control tasks.Methods The effects of methylphenidate (40 mg) were assessed using functional magnetic resonance imaging in 16 healthy volunteers in a within-subject, double-blind, placebo-controlled design.Results Methylphenidate significantly reduced activation of different regions within the right inferior frontal gyrus/insula to infrequent stimuli associated with successful inhibition, failed inhibition, and attentional capture. These inferior frontal gyrus regions showed different interregional connections with inhibitory and attention networks. For failed inhibitions, methylphenidate increased activation within performance-monitoring regions, including the superior frontal, anterior cingulate, and parietal-occipital cortices, but only after controlling for attentional capture.Conclusions Our findings suggest that the improvement of response inhibition seen following methylphenidate administration is due to its influence on underlying attentional mechanisms linked to response control requirements.

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Crossref · 10.1016/j.biopsych.2012.03.028

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  1. Brett M, Anton J-L, Valabregue R, Poline J-B (2002): Region of interest analysis using an SPM toolbox [abstract]. Paper presented at: 8th International Conference on Functional Mapping of the Human Brain; June 2-6, 2002; Sendai, Japan. Available on CD-ROM in Neuro- image Vol 16, No 2.

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Authors
Pauls, A. M., O'Daly, O. G., Rubia, K., Riedel, W. J., Williams, S. C. R., & Mehta, M. A.
Affiliations
  • King's College London (GB)
  • Maastricht University (NL)
Corresponding author
Pauls, Astrid M.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2012-07
Volume
72
Issue
2
Pages
142-149
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2012989506
Cited by
57
References
61
Citations by year
2026: 1 · 2025: 1 · 2024: 3 · 2022: 3 · 2021: 6 · 2020: 2 · 2019: 2 · 2018: 1 · 2017: 8 · 2016: 7 · 2015: 9 · 2014: 9 · 2013: 2 · 2012: 3
FWCI
3.76
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Research Publications (Maastricht University) (publishedVersion, other-oa)
  • Research Portal (King's College London) (submittedVersion)
  • Research Publications (Maastricht University) (submittedVersion, other-oa)
Funders
  • Eli Lilly and Company
  • Pfizer
  • British Association for Psychopharmacology
  • Universiteit Maastricht
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
methylphenidate, response inhibition, attentional capture, stop-signal task, prefrontal cortex, inferior frontal gyrus, insula, performance monitoring, anterior cingulate cortex
MeSH terms
Adult, Attention, Brain Mapping, Double-Blind Method, Frontal Lobe, Humans, Inhibition, Psychological, Magnetic Resonance Imaging, Male, Methylphenidate, Neural Pathways, Occipital Lobe, Parietal Lobe, Placebos, Psychomotor Performance, Prefrontal Cortex, Cross-Over Studies

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