Autism Clinical Trial
Official title:
Functional MRI of Cognitive Control in Autism
NCT number | NCT00463164 |
Other study ID # | 06-179 |
Secondary ID | |
Status | Not yet recruiting |
Phase | N/A |
First received | April 19, 2007 |
Last updated | April 19, 2007 |
Start date | December 2007 |
This study aims to investigate the role of fronto-striatal circuits and cognitive control in the perseverative and inflexible behavior that is a defining feature of autism. We hypothesize that deficits in the development of fronto-striatal circuitry may underlie cognitive inflexibility in autism. Specifically, we hypothesize that repetitive, inflexible behavior arises as (1) fronto-striatal systems are capable of learning patterns present in the environment (as in implicit learning paradigms), but are unable to adapt behavior to changing circumstances, related to either (2) decreased ability of basal ganglia to detect violations of expectancy, (3) decreased ability of prefrontal cortex to respond to detected violations, or (4) decreased connectivity of the circuits. We are conducting three functional Magnetic Resonance Imaging (fMRI) studies to address these hypotheses.
Status | Not yet recruiting |
Enrollment | 90 |
Est. completion date | |
Est. primary completion date | |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Both |
Age group | 6 Years to 12 Years |
Eligibility |
Inclusion Criteria: - Aged 6 - 12 years at inclusion Inclusion criteria for subjects with autism - DSM-IV (APA, 1994) diagnosis of autism, according to ADI-R interview Inclusion criteria for controls - No DSM-IV (APA, 1994) diagnosis, according to DISC interview - No scores in the clinical range on the Child Behavior Checklist (CBCL) and Teacher Rating Form (TRF) - IQ > 70 Exclusion Criteria: - Major illness of the cardiovascular, the endocrine, the pulmonal or the gastrointestinal system - Presence of metal objects in or around the body (pacemaker, dental braces) - History of or present neurological disorder |
Observational Model: Case Control, Time Perspective: Cross-Sectional
Country | Name | City | State |
---|---|---|---|
Netherlands | Dept. of Child and Adolescent Psychiatry, UMC Utrecht | Utrecht |
Lead Sponsor | Collaborator |
---|---|
UMC Utrecht |
Netherlands,
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