Dissociation and interoception in functional neurological disorder

Introduction: We aimed to examine susceptibility to dissociation and the impact of dissociation on interoceptive processing in individuals with functional neurological disorder (FND). We hypothesised that dissociative states would be elevated and interoceptive accuracy and awareness impaired at base...

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Bibliographic Details
Published in:Cognitive neuropsychiatry 2020-07, Vol.25 (4), p.294-311
Main Authors: Pick, Susannah, Rojas-Aguiluz, Maya, Butler, Morgan, Mulrenan, Heather, Nicholson, Timothy R., Goldstein, Laura H.
Format: Article
Language:English
Subjects:
Accuracy
Adolescent
Adult
Awareness - physiology
dissociation
dissociative
Dissociative Disorders - diagnosis
Dissociative Disorders - physiopathology
Dissociative Disorders - psychology
Female
Heart Rate - physiology
Humans
interoception
Interoception - physiology
Male
metacognition
Metacognition - physiology
Middle Aged
Nervous System Diseases - diagnosis
Nervous System Diseases - physiopathology
Nervous System Diseases - psychology
Neurological disorders
Photic Stimulation - methods
psychogenic non-epileptic seizures
Young Adult
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Summary:Introduction: We aimed to examine susceptibility to dissociation and the impact of dissociation on interoceptive processing in individuals with functional neurological disorder (FND). We hypothesised that dissociative states would be elevated and interoceptive accuracy and awareness impaired at baseline in people with FND, and that such differences would be exacerbated following acute dissociation. Methods: Nineteen adults with FND were compared to 20 healthy controls. A modified heart-beat tracking task measured interoceptive accuracy and awareness (confidence) before and after a validated dissociation induction procedure. An exteroceptive processing control task was included. Mann-Whitney tests and r-values (effect size) were computed for between-group comparisons. Results: The FND group displayed elevated dissociation at baseline (p = 0.001, r = 0.528) compared to controls which increased following dissociation-induction (p 
ISSN:1354-6805
1464-0619
DOI:10.1080/13546805.2020.1791061