The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.
Loss of sensory attenuation in patients with functional (psychogenic) movement disorders
Abstract
Functional movement disorders require attention to manifest yet patients report the abnormal movement to be out of their control. In this study we explore the phenomenon of sensory attenuation, a measure of the sense of agency for movement, in this group of patients by using a force matching task. Fourteen patients and 14 healthy control subjects were presented with forces varying from 1 to 3 N on the index finger of their left hand. Participants were required to match these forces; either by pressing directly on their own finger or by operating a robot that pressed on their finger. As expected, we found that healthy control subjects consistently overestimated the force required when pressing directly on their own finger than when operating a robot. However, patients did not, indicating a significant loss of sensory attenuation in this group of patients. These data are important because they demonstrate that a fundamental component of normal voluntary movement is impaired in patients with functional movement disorders. The loss of sensory attenuation has been correlated with the loss of sense of agency, and may help to explain why patients report that they do not experience the abnormal movement as voluntary.
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Metadata
- Authors
- Pareés, I., Brown, H., Nuruki, A., Adams, R. A., Davare, M., Bhatia, K. P., Friston, K., & Edwards, M. J.
- Affiliations
- National Hospital for Neurology and Neurosurgery (GB)
- Wellcome Centre for Human Neuroimaging (GB)
- Kagoshima University (JP)
- Venue
- Brain
- Publisher
- Oxford University Press (OUP)
- Published
- 2014-08-26
- Volume
- 137
- Issue
- 11
- Pages
- 2916-2921
- ISSN
- 0006-8950 (ISSN-L)
- 1460-2156
- OpenAlex
- W1982517234
- Cited by
- 155
- References
- 26
- Citations by year
- 2026: 16 · 2025: 17 · 2024: 18 · 2023: 18 · 2022: 22 · 2021: 10 · 2020: 9 · 2019: 10 · 2018: 5 · 2017: 10 · 2016: 12 · 2015: 7 · 2014: 1
- FWCI
- 5.58
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Brain (publishedVersion)
- PubMed (publishedVersion)
- UCL Discovery (University College London) (submittedVersion)
- Funders
- Alexander and Margaret Stewart Trust
- Wellcome Trust (088130)
- National Institute for Health and Care Research
- University College London
- Biotechnology and Biological Sciences Research Council (BB/J014184/1)
- Japan Society for the Promotion of Science (23700608, 25560298)
- Topics
- Social Sciences › Arts and Humanities › Philosophy › Free Will and Agency
- Health Sciences › Medicine › Psychiatry and Mental health › Psychosomatic Disorders and Their Treatments
- Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
- Keywords
- sensory attenuation, functional movement disorders, psychogenic movement disorders, sense of agency, force matching, voluntary movement, proprioception
- MeSH terms
- Adult, Aged, Female, Hand, Humans, Male, Middle Aged, Movement Disorders, Somatosensory Disorders
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