A Research Study of How Teens With and Without an Anxiety Disorder Make Decisions
This study has been completed.
Information provided by (Responsible Party):
F. Xavier Castellanos, New York University School of Medicine
First received: February 23, 2005
Last updated: April 15, 2014
Last verified: April 2014
The purpose of this trial is to study how teens with and without an anxiety disorder make decisions.
This is a brain imaging study using functional magnetic resonance imaging (fMRI) in adolescents between the ages of 13 and 17.
Separation Anxiety Disorder
||Observational Model: Case Control
||Decision-Making Processes and Brain Function in Anxiety-Disordered and Non-Anxious Youth
Primary Outcome Measures:
- Intolerance of Uncertainty [ Time Frame: at time of assessment/enrollment ] [ Designated as safety issue: No ]
| Study Start Date:
| Study Completion Date:
| Primary Completion Date:
||April 2014 (Final data collection date for primary outcome measure)
Preliminary analyses of behavioral data showed no group differences in response times during the decision-making games. However, behavioral ratings of certainty during the task showed differences between groups. Anxiety-disordered participants indicated lower levels of certainty during the most uncertain conditions of the task (p < .05). This difference was consistent with the study hypothesis. Within-subjects analyses of the decision-making tasks showed that subjects responded as expected. Reaction times (RT) during uncertain conditions of the HiLo-Game were significantly longer than during more certain conditions (p = .001). Diary Task RTs for rating ambiguous situations were significantly longer than ratings of unambiguous situations (p = .019). Preliminary Analyses showed a significant correlation between Intolerance of Uncertainty (IU) and RT during the Marble Task (r = -0.54, p < .05). Preliminary analysis also showed significant correlation between ratings of level of anxiety during the diary task and IU, IS, MASC and the child version of the SCARED. These preliminary results were not submitted for publication.
|Ages Eligible for Study:
||13 Years to 17 Years (Child)
|Genders Eligible for Study:
|Accepts Healthy Volunteers:
Anxious and healthy adolescents
- Must meet diagnostic criteria for Generalized Anxiety Disorder, Separation Anxiety Disorder or Social Phobia, OR must be free of medical, psychiatric, neurologic conditions and learning disorders (healthy controls)
- Sufficient intelligence to understand the study and provide truly informed consent; will be determined by educational history
- Having any major medical conditions that may interfere with interpretation of results or be associated with risk in an MRI environment (history of metal implants, or contraindications to MRI scanning for research purposes, including pregnancy)
- Current evidence of Autism, Major Depression, Substance Abuse, Obsessive Compulsive Disorder, Post-traumatic Stress Disorder, Panic Disorder, Tic Disorders, significant suicidality, lifetime history of psychosis or mania.
- Estimated Full-Scale IQ below 80
- Inability or unwillingness to remain still during scanning
- Inability or unwillingness to provide assent
- Absence of signed consent by parent or legal guardian
- Current history of sexual or physical abuse in the family, or past sexual or physical abuse if there is ongoing Department of Social Services (DSS) involvement
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study.
To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below.
For general information, see Learn About Clinical Studies.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00104195
|New York University's Child Study Center
|New York, New York, United States, 10016 |
New York University School of Medicine
||F. Xavier Castellanos, Professor, New York University School of Medicine
History of Changes
|Other Study ID Numbers:
|Study First Received:
||February 23, 2005
||April 15, 2014
||United States: Institutional Review Board
Keywords provided by New York University School of Medicine:
Generalized Anxiety Disorder
Additional relevant MeSH terms:
ClinicalTrials.gov processed this record on December 07, 2016