Conversion disorder
MONDO:0002104Conversion disorder is a disorder in which a person experiences blindness, paralysis, or other symptoms affecting the nervous system that cannot be explained solely by a physical illness or injury. Symptoms usually begin suddenly after a period of emotional or physical distress or psychological conflict. Conversion disorder is thought to be caused by the bodys reaction to a stressful physical or emotional event. Some research has identified potential neurological changes that may be related to symptoms of the disorder. Diagnosis of conversion disorder is based on identifying particular signs that are common among people with the disorder, as well as performing tests to rule out other causes of the symptoms. Treatment may include psychotherapy, hypnosis, and stress management training to help reduce symptoms. Treatment of any underlying psychological disorder is also recommended. The affected body part may require physical or occupational therapy until symptoms resolve.
Also known as: conversion hysterical neurosis, FND, functional movement disorder, functional neurological disorder
48 clinical trials for this condition and its sub-types.
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Could a gentle ear zap boost physiotherapy for a mysterious brain disorder?
Symptom relief Not yet recruitingThis study investigates whether adding a painless, non-invasive vagus nerve stimulation through the ear to standard physiotherapy can improve motor symptoms and quality of life in people with Functional Neurological Disorder (FND). Researchers will first compare brain function in…
Phase: NA • Sponsor: University of Fribourg • Aim: Symptom relief
Last updated Jul 19, 2026 00:00 UTC
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New app aims to help patients with brain-signal disorder track symptoms in real time
Symptom relief Not yet recruitingThis study tests a mobile app designed for people with functional movement disorder (FMD), a condition where the brain doesn't send movement signals properly. The app lets users record symptoms, stress, and mood as they happen, and offers simple self-help tools. Ten adults with F…
Sponsor: Western University, Canada • Aim: Symptom relief
Last updated Jun 27, 2026 09:00 UTC
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New study investigates 'Sluggish cognitive Tempo' in FND patients
Knowledge-focused Not yet recruitingThis study will compare symptoms of sluggish cognitive tempo (also called cognitive disengagement syndrome) in 100 adults with Functional Neurological Symptom Disorder against healthy controls. Participants will fill out questionnaires about daydreaming, confusion, and slow think…
Sponsor: Elazığ Mental Health and Diseases Hospital • Aim: Knowledge-focused
Last updated Jul 01, 2026 00:00 UTC
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MS mystery: do some relapses hide from MRI scans?
Knowledge-focused Not yet recruitingThis study looks at whether people with relapsing-remitting multiple sclerosis (RRMS) can have a relapse—new or worsening symptoms—without any visible inflammation on an MRI scan. Researchers will follow 136 adults who are having a suspected relapse, performing early brain and sp…
Phase: NA • Sponsor: University Hospital, Strasbourg, France • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:23 UTC
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New test may reveal how brain perceives control in movement disorders
Knowledge-focused Not yet recruitingThis study looks at how people with functional movement disorders (FMD) experience a sense of control over their actions. Researchers will measure how quickly participants respond when asked if they caused an action, using a computer task. The goal is to develop a more objective …
Sponsor: Western University, Canada • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:12 UTC