- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00026546
Behavior in Children With Attention Deficit Hyperactivity Disorder and in Healthy Volunteers
A Behavioral and Functional Neuroimaging Study of Inhibitory Motor Control
The purpose of this study is to determine how the brain controls motor activity in children with attention deficit hyperactivity disorder (ADHD).
The inability to control one s behavior is an important symptom of many psychiatric illnesses. The stop signal paradigm which involves withholding a motor response to a go signal, has proved useful in assessing uncontrolled behavior in children with ADHD and other disorders. This study will use a stop signal paradigm in order to evaluate the ability of children with and without ADHD to control their motor behavior. A magnetic resonance imaging (MRI) scan will be used to study how the brain works during specific activities.
This study will evaluate the stop signal paradigm in three groups of people: healthy children, children with ADHD, and healthy adults. This study comprises two sub-studies: a behavioral study in which participants perform simple activities and an MRI study.
Participants will be asked to stop any over-the-counter medication 5 days before entering the behavioral or MRI study. Children with ADHD will be asked to stop taking medication for ADHD 72 hours before the study. All participants will have a medical history and a psychiatric evaluation (for children, both parents and children provide information for the assessment). Participants in the MRI study will also have physical examinations and blood and urine tests. All children will undergo intelligence tests; and those with ADHD will have tests to confirm the diagnosis. The parents of child participants will complete an autism screening questionnaire.
Study Overview
Status
Conditions
Detailed Description
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Maryland
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Bethesda, Maryland, United States, 20892
- National Institutes of Health Clinical Center, 9000 Rockville Pike
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
- INCLUSION CRITERIA:
CONTROL SUBJECTS:
Male and female subjects in two age cohorts will be recruited: 7-16 and 18-45 years. Subjects must be free from any current or past psychopathology and be medication-free. The 7-16 year olds will be gender matched to the ADHD subjects.
ADHD SUBJECTS:
Male and female subjects aged 7-16 who currently meet DSM-IV criteria for ADHD. The diagnosis will be made on the basis of a K-SADS-PL interview with the parent and a t score greater than 65 on the hyperactivity-impulsivity subscale of the Connors Teacher Scale. With the exception of symptoms and signs attributable to the ADHD, Oppositional Defiant Disorder, the Learning, Communication Disorders, Elimination Disorders, and Separation or Social Anxiety Disorders, subjects must be free from any current or past psychopathology.
fMRI STUDY:
Subjects aged 8-45 years will be recruited. Otherwise the same as for the behavioral study above for healthy volunteers and ADHD participants.
EXCLUSION CRITERIA:
CONTROL SUBJECTS:
I.Q. less than 80; pregnancy ; ongoing medical illness; neurological disorder (including seizures); meeting past or present criteria for any diagnosis on the K-SADS-PL (children and adolescents) or SCID (adults).
ADHD SUBJECTS:
I.Q. less than 80; pregnancy; ongoing medical illness or neurological disorder other than ADHD; contraindication to discontinuing medication for 72 hours; any other psychiatric disorder that is sufficiently severe to require specific treatment, with the exception of Oppositional Defiant Disorder, and the Learning, Communication, and Elimination Disorders, Separation Anxiety Disorder or Social Anxiety Disorder. Explicit exclusions include Pervasive Developmental Disorders, Tourette's syndrome, conduct disorder, and mood or Generalized anxiety disorders.
fMRI STUDY:
I.Q. less than 80; pregnancy; ongoing medical illness; neurological disorder (including seizures); meeting past or present criteria for any diagnosis on SCID; or KSADS except for ADHD, Oppositional Defiant Disorder, the Learning, Communication Disorders, Elimination Disorders, and Separation or Social Anxiety Disorders; any metallic objects in the body that would constitute a contraindication to an fMRI scan.
Study Plan
How is the study designed?
Design Details
Collaborators and Investigators
Publications and helpful links
General Publications
- Alexander GE, Crutcher MD, DeLong MR. Basal ganglia-thalamocortical circuits: parallel substrates for motor, oculomotor, "prefrontal" and "limbic" functions. Prog Brain Res. 1990;85:119-46.
- Oosterlaan J, Logan GD, Sergeant JA. Response inhibition in AD/HD, CD, comorbid AD/HD + CD, anxious, and control children: a meta-analysis of studies with the stop task. J Child Psychol Psychiatry. 1998 Mar;39(3):411-25.
- Casey BJ, Giedd JN, Thomas KM. Structural and functional brain development and its relation to cognitive development. Biol Psychol. 2000 Oct;54(1-3):241-57. doi: 10.1016/s0301-0511(00)00058-2.
Study record dates
Study Major Dates
Study Start
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 020036
- 02-M-0036
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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Ataturk UniversityCompletedAttention-deficit/Hyperactivity DisorderTurkey