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Functional Movement DisordersNCT00448084

Brain Activity in People With Functional Movement Disorders

An observational study of Functional Movement Disorders, run by National Institute of Neurological Disorders and Stroke (NINDS) at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will use functional MRI (fMRI, a technique that shows what areas of the brain are active when performing different mental tasks), to examine how the brain in people with functional movement disorders (FMD) may differ from that in people without FMDs. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Functional Movement Disorders
How many people
65 participants
Where
1 siteUnited States
Study dates
8 Mar 2007to 5 Aug 2008
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • PATIENTS:
  • Age 18 to 65
  • Subjects willing to abstain from caffeine or alcohol for 48 hours prior to the fMRI scanning
  • Diagnosis of a functional movement disorder confirmed by a study investigator
  • HEALTHY VOLUNTEERS:
  • Age 18 to 65

Who cannot join

  • Subjects with any abnormal findings on neurological exam consistent with an organic disorder
  • Subjects with a positive urine pregnancy test
  • Subjects with a positive urine drug screen
  • Subjects who are pregnant
  • Subjects with any finding on the MRI safety questionnaire which prevents them from safely undergoing an MRI scan
  • Subjects with metallic dental fillings which are likely to enhance MRI artifacts
Show all 15Show fewer
  • Subjects with any history of dementia, brain tumor, stroke, head trauma or a vascular malformation as obtained by history or from imaging studies
  • Subjects with moderate to severe brain atrophy on imaging studies, as assessed by a study investigator
  • Subjects with any history of a severe medical condition, such as cardiovascular disease, which would prevent them from lying flat for up to 120 minutes
  • Subjects without the capacity to give informed consent
  • Subjects with claustrophobia or other restrictions which prevent them from undergoing a scan in a confined space for up to 120 minutes
  • Subjects using beta-blocker medications or other chronotropes which may inhibit the cardiac responsivity
  • Patient whose movement frequency and severity prevents them from undergoing MRI safely and effectively for the purposes of data collection
  • Patient with a pending medical-legal case
  • Subjects with suicidal ideation

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Institutes of Health Clinical Center, 9000 Rockville Pike

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Official title: BOLD-fMRI of the Perception of Volition in Functional Movement Disorders

This study will use functional MRI (fMRI, a technique that shows what areas of the brain are active when performing different mental tasks), to examine how the brain in people with functional movement disorders (FMD) may differ from that in people without FMDs. People with FMD have movement symptoms they feel they cannot control and that are not due to a known medical disorder. Previous studies looking at the brain activity of FMD patients have found areas in the frontal lobe of the brain that appeared overactive. These overactive areas may make it difficult to perform complex mental tasks. Studying the brain during performance of these tasks may enhance knowledge about FMD.

Patients 18 years of age or older with an FMD and healthy normal volunteers may be eligible for this study. Participants have two visits to the NIH Clinical Center for the following procedures:

Read more

First visit (screening):

  • Medical history and neurological examination.
  • Urine drug screen for illicit drugs.
  • Psychological testing, including an interview and questionnaires.

Second visit:

  • Brain MRI (if one has not been done at NIH within the past 12 months): MRI uses a magnetic field and radio waves to produce images of body tissues and organs. The subject lies on a table that can slide in and out of the scanner (a narrow cylinder), wearing earplugs to muffle loud noises that occur during the scanning process. The procedure lasts about 2 hours, during which time the patient is asked to lie still for up to 30 minutes at a time.
  • Brain fMRI: While in the MRI scanner, subjects read questions and answer them yes or no by pushing buttons. They are asked to answer questions about their health, their movement symptoms and unrelated topics (like personal preferences and current events). The questions vary in difficulty. Sometimes subjects are instructed to answer correctly; other times they are asked to answer incorrectly. A strap is placed around the subject's chest and two wires are taped to the fingers to monitor heart rate, breathing rate and sweat response during the scan. The scan takes about 2 hours.
Read the detailed description

OBJECTIVE

The purpose of this study is to utilize functional MRI (fMRI) to identify structural brain regions and activation patterns involved in deception in order to determine whether illness deception can be differentiated from involuntary conversion disorders. We intend to compare the brain activations of functional movement disorder (FMD) patients against those of healthy volunteers in order to determine whether various aspects of the disorder are under volitional control, suggesting a component of illness deception, or are involuntary as hypothesized in conversion disorders.

STUDY POPULATION

We intend to use up to 35 right-hand dominant adult healthy volunteers (the first five subjects will be used to develop this method) and 30 functional movement disorder patients.

DESIGN

Using a slow event-related design, we will scan subjects using a 3T fMRI scanner while they are visually presented with survey-based stimuli which require a yes/no response using a key press. Information used to create the stimuli will be pseudo-randomly derived from one of two databases. The first database will be created from the information garnered in the survey subjects will complete during their screening visit (i.e. subjects eye color or height). The second database will be a collection of non-specific information (i.e. current year, season, etc.) that intentionally does not apply to the subjects. For each question displayed, subjects will receive a visual instruction to respond either truthfully or deceptively. Correct answers to responses will be evaluated based upon the survey the subjects completed. In addition to the BOLD data collected, we plan to calculate reaction times and acquire autonomic data in order to identify possible correlates with the brain responses.

OUTCOME MEASURES

The primary outcome measure is the BOLD-fMRI data collected from subjects while answering yes-no type questions. Secondary outcome measures will include reaction times and autonomic data that will be collected simultaneously with the fMRI data. Standard univariate general linear model analysis will be performed on the fMRI data as well as the use of multivariate methods, including support vector machine learning. Subgroup analyses will be conducted to characterize the correlation between reaction times, autonomic data, and fMRI results as well as potential differences in activation patterns for subject-referenced questions and questions which are unrelated to the subject.

Keywords
Psychogenic Movement Disorders, Volition, fMRI, Functional MRI, Functional Movement Disorder, Healthy Volunteer, HV
Medical subject headings
Conversion Disorder, Self-Control

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Mar 2007 (estimated)
  2. Study start8 Mar 2007
  3. Study completion5 Aug 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Enrolment
65 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00448084
Sponsor's protocol ID
070117
Other IDs
07-N-0117
Status last verified
5 Aug 2008
First submitted
14 Mar 2007
Last updated
2 Jul 2017
Results posted
No

Publications

  • Barry RL, Menon RS. Modeling and suppression of respiration-related physiological noise in echo-planar functional magnetic resonance imaging using global and one-dimensional navigator echo correction. Magn Reson Med. 2005 Aug;54(2):411-8. doi: 10.1002/mrm.20591.

    PubMed 16032665
  • Bash IY, Alpert M. The determination of malingering. Ann N Y Acad Sci. 1980;347:86-99. doi: 10.1111/j.1749-6632.1980.tb21257.x. No abstract available.

    PubMed 6930923
  • Cragar DE, Berry DT, Fakhoury TA, Cibula JE, Schmitt FA. Performance of patients with epilepsy or psychogenic non-epileptic seizures on four measures of effort. Clin Neuropsychol. 2006 Sep;20(3):552-66. doi: 10.1080/13854040590947380.

    PubMed 16895866

Questions about this trial

What is this clinical trial studying?

An observational study of Functional Movement Disorders, run by National Institute of Neurological Disorders and Stroke (NINDS) at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Jul 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00448084, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jul 2017.

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