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A framework for understanding the pathophysiology of functional neurological disorder

Published online by Cambridge University Press:  04 September 2020

Daniel L. Drane Open the ORCID record for Daniel L. Drane [Opens in a new window] ,
Negar Fani Open the ORCID record for Negar Fani [Opens in a new window] ,
Mark Hallett Open the ORCID record for Mark Hallett [Opens in a new window] ,
Sahib S. Khalsa Open the ORCID record for Sahib S. Khalsa [Opens in a new window] ,
David L. Perez Open the ORCID record for David L. Perez [Opens in a new window]  and
Nicole A. Roberts Open the ORCID record for Nicole A. Roberts [Opens in a new window]
Daniel L. Drane
Affiliation:
Departments of Neurology and Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
Negar Fani
Affiliation:
Department of Psychiatry and Behavioral Sciences, Emory School of Medicine, Atlanta, Georgia, USA
Mark Hallett
Affiliation:
Human Motor Control Section, NINDS, National Institutes of Health, Bethesda, Maryland, USA
Sahib S. Khalsa
Affiliation:
Laureate Institute for Brain Research, Tulsa, Oklahoma, USA Oxley College of Health Sciences, The University of Tulsa, Tulsa, Oklahoma, USA
David L. Perez*
Affiliation:
Cognitive Behavioral Neurology and Neuropsychiatry Units, Departments of Neurology and Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
Nicole A. Roberts
Affiliation:
School of Social and Behavioral Sciences, Arizona State University, Phoenix, Arizona, USA
*
*Author for correspondence: David L. Perez MD, MMSc, Email: dlperez@nmr.mgh.harvard.edu
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Abstract

The symptoms of functional neurological disorder (FND) are a product of its pathophysiology. The pathophysiology of FND is reflective of dysfunction within and across different brain circuits that, in turn, affects specific constructs. In this perspective article, we briefly review five constructs that are affected in FND: emotion processing (including salience), agency, attention, interoception, and predictive processing/inference. Examples of underlying neural circuits include salience, multimodal integration, and attention networks. The symptoms of each patient can be described as a combination of dysfunction in several of these networks and related processes. While we have gained a considerable understanding of FND, there is more work to be done, including determining how pathophysiological abnormalities arise as a consequence of etiologic biopsychosocial factors. To facilitate advances in this underserved and important area, we propose a pathophysiology-focused research agenda to engage government-sponsored funding agencies and foundations.

Keywords

psychogenicconversion disorderemotionagencyattentioninteroception

Information

Type
Perspective
Information
CNS Spectrums , Volume 26 , Issue 6: Special Issue: Functional Neurological Disorder , December 2021 , pp. 555 - 561
Copyright
© The Author(s), 2020. Published by Cambridge University Press

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Footnotes

All authors contributed equally to this study.

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