Corticolimbic structural alterations linked to health status and trait anxiety in functional neurological disorder
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Scholar |
Otros documentos de la autoría: Pérez, David L.; Williams, Benjamin; Matin, Nassim; Curt LaFrance Jr., W.; Costumero, Víctor; Fricchione, Gregory L.; Sepulcre, Jorge; Keshavan, Matcheri S.; Dickerson, Bradford C.
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http://dx.doi.org/10.1136/jnnp-2017-316359 |
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Título
Corticolimbic structural alterations linked to health status and trait anxiety in functional neurological disorderAutoría
Fecha de publicación
2017-11Editor
BMJCita bibliográfica
Perez DL, Williams B, Matin N, et al Corticolimbic structural alterations linked to health status and trait anxiety in functional neurological disorder J Neurol Neurosurg Psychiatry 2017;88:1052-1059.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://jnnp.bmj.com/content/88/12/1052Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Objective Affective symptoms influence health status (health-related quality of life) in functional neurological disorder (FND), and the salience network is implicated in the pathophysiology of FND and mood/anxiety ... [+]
Objective Affective symptoms influence health status (health-related quality of life) in functional neurological disorder (FND), and the salience network is implicated in the pathophysiology of FND and mood/anxiety disorders. We hypothesised that self-reported health status and affective symptoms would map onto salience network regions and that patients with FND would show decreased insular volumes compared with controls.
Methods This voxel-based morphometry study investigated volumetric differences in 26 patients with FND (21 women, 5 men; mean age=40.3±11.5) compared with 27 healthy controls (22 women, 5 men; mean age=40.5±10.8). Post hoc analyses stratified patients with FND by mental and physical health scores (Short Form Health Survey-36). Within-group analyses investigated associations with mental health, physical health, trait anxiety and depression in patients with FND.
Results There were no volumetric differences between the complete FND cohort and controls. In stratified analyses, however, patients with FND reporting the most severe physical health impairments showed reduced left anterior insular volume compared with controls. In within-group analyses, impaired mental health and elevated trait anxiety were associated with increased right amygdalar volumes in patients with FND. The relationship between amygdalar volume and mental health, driven by emotional well-being deficits and role limitations due to emotional problems, was independent of sensorimotor functional neurological symptom severity and motor FND subtype. In secondary within-group analyses, increased periaqueductal grey volume was associated with role limitations due to emotional problems. Impaired physical functioning correlated with decreased left anterior insular volumes.
Conclusions These findings support roles for several regions of the salience network in the pathophysiology of FND. [-]
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