New study investigates 'Sluggish cognitive Tempo' in FND patients
NCT ID NCT07451821
First seen Jun 25, 2026 · Last updated Sep 11, 2026 · Updated 5 times
Summary
This 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 thinking. The goal is to see if these cognitive symptoms are more common in people with FND.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If this study finds a link, it could help doctors better understand and recognize cognitive symptoms in people with Functional Neurological Symptom Disorder.
- What could go wrong
- This is an early observational study with only 100 participants, so results may not apply to everyone. It looks at symptoms, not treatments, so it won't directly change care.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 100 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2026
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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A government agency
The lead sponsor is a government body.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
The study population will consist of adult participants aged 18-65 years. The Functional Neurological Symptom Disorder (FNSD) group will include consecutive subjects diagnosed with FNSD according to DSM-5-TR criteria who will be admitted to the psychiatry clinic of Elazığ Mental Health and Diseases Hospital (Turkey). The healthy control (HC) group will consist of individuals from the general population who will apply to the hospital medical board and will have no current or past psychiatric or significant medical disorders. All participants will provide informed consent prior to enrollment.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
* Inclusion Criteria for the Functional Neurological Symptom Disorder (FNSD) Group: 1. Meeting the diagnostic criteria for FNSD/CD according to DSM-5-TR at the time of admission 2. Being between 18-65 years of age 3. Absence of additional psychiatric disorders 4. Absence of alcohol/substance use disorder 5. Absence of neurological disorders affecting cognition 6. Being in remission with FNSD/CD 7. Completing sociodemographic data fully 8. Willingness to complete the forms and scales. 9. Willingness to participate in the study * Exclusion Criteria for the FNSD Group: 1. Being under 18 or over 65 years of age 2. Not meeting the diagnostic criteria for FNSD/CD according to DSM-5-TR 3. Active alcohol/substance use 4. Having neurological diseases affecting cognitive functions (such as Alzheimer's disease, delirium, Parkinson's disease) 5. Not being willing to participate in the study 6. Incomplete sociodemographic data 7. Not being willing to complete forms and scales. * Inclusion Criteria for the Healthy Control (HC) Group 1. Being between 18-65 years of age 2. Not having any psychiatric disorder 3. Not having an alcohol/substance use disorder 4. Not having a neurological disorder affecting cognition 5. Completing sociodemographic data in full 6. Being willing to complete the forms and scales. 7. Being willing to participate in the study * Exclusion Criteria for the HC Group: 1. Being under 18 or over 65 years of age 2. Having a psychiatric disorder 3. Active alcohol/substance use 4. Having neurological diseases affecting cognitive functions (such as Alzheimer's disease, delirium, Parkinson's disease) 5. Not being willing to participate in the study 6. Incomplete sociodemographic data 7. Not being willing to complete forms and scales.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Elazığ Mental Health and Diseases Hospital
RECRUITINGElâzığ, Elâzığ, 23200, Turkey (Türkiye)
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Elazığ Mental Health and Diseases Hospital Psychiatry Clinic
NOT_YET_RECRUITINGElâzığ, Elâzığ, 23200, Turkey (Türkiye)
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