A Research Study of How Teens With and Without an Anxiety Disorder Make Decisions

Decision-Making Processes and Brain Function in Anxiety-Disordered and Non-Anxious Youth

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00104195

Enrollment

127

Registered

2005-02-24

Start date

2004-02-29

Completion date

2014-04-30

Last updated

2014-04-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anxiety Disorders, Phobic Disorders, Separation Anxiety Disorder

Keywords

Anxiety, Adolescence, Generalized Anxiety Disorder

Brief summary

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.

Detailed description

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.

Interventions

None listed

Study design

Observational model

CASE_CONTROL

Eligibility

Sex/Gender

ALL

Age

13 Years to 17 Years

Healthy volunteers

Yes

Inclusion criteria

* 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

Exclusion criteria

* 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

Design outcomes

Primary

Measure	Time frame
Intolerance of Uncertainty	at time of assessment/enrollment

Countries

United States

Outcome results