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The Flip Side of Distractibility—Executive Dysfunction in Functional Movement Disorders

Huys, ACML; Bhatia, KP; Edwards, MJ; Haggard, P; (2020) The Flip Side of Distractibility—Executive Dysfunction in Functional Movement Disorders. Frontiers in Neurology , 11 , Article 969. 10.3389/fneur.2020.00969. Green open access

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Abstract

Attention plays a crucial role in functional neurological disorders. Attention to the symptoms leads to their exacerbation and distraction to their improvement or even transitory disappearance. / Objective: The aim was to test if the alerting, orienting and particularly the executive aspect of attention are affected in functional movement disorders. / Methods: Thirty patients with a functional movement disorder, 30 patients with an organic movement disorder and 30 healthy controls performed the attention network test. / Results: The alerting and orienting effects were normal, but executive control of attention under conflict was abnormal in patients with functional movement disorders, compared to patients with an organic movement disorder and healthy controls. / Conclusion: Executive dysfunction seems to be an important secondary feature of functional movement disorders, due to the overutilization of attentional resources for explicit movement control. Furthermore, it provides an explanation for seemingly unrelated symptoms commonly associated with functional movement disorders, such as concentration difficulties and fatigue.

Type: Article
Title: The Flip Side of Distractibility—Executive Dysfunction in Functional Movement Disorders
Open access status: An open access version is available from UCL Discovery
DOI: 10.3389/fneur.2020.00969
Publisher version: https://doi.org/10.3389/fneur.2020.00969
Language: English
Additional information: Copyright © 2020 Huys, Bhatia, Edwards and Haggard. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) (http://creativecommons.org/licenses/by/4.0/). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Keywords: attention, attention network test, functional neurological disorder, functional movement disorders, conversion disorder, movement disorders, executive, cognitive
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Institute of Cognitive Neuroscience
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Clinical and Movement Neurosciences
URI: https://discovery.ucl.ac.uk/id/eprint/10112237
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