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Clinical, Environmental, Neurocognitive, Brain Imaging, and Genetic Validity of Autism and ADHD

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified April 2012 by National Taiwan University Hospital.
Recruitment status was:  Recruiting
Information provided by (Responsible Party):
National Taiwan University Hospital Identifier:
First received: June 8, 2009
Last updated: July 8, 2012
Last verified: April 2012
The behavioral patterns, neurocognitive and social impairments, and high heritability are the common characteristics of autism spectrum disorders (ASD) and attention-deficit hyperactivity disorder (ADHD), the two most common early-onset neuropsychiatric disorders. Little is known about the discriminative validity between these two disorders. As brain imaging studies have been recognized as an important biological tool to validate disease involving the brain, no studies have employed this approach to distinguish the brain functioning between ASD and ADHD. Moreover, there is lack of comprehensive data of environmental, behavioral, neurocognitive, neuroimaging, and genetic data for healthy children. Hence, we propose this program project involving expertise researchers in the fields of child psychiatry and psychology, psychiatric genetics, and brain imaging studies to elucidate the neuropathophysiology and genes & environment interactions of ASD and ADHD as comparing to healthy controls by integrating data from environments, behavioral phenotypes, endophenotypes, and genotypes in one study.

Attention Deficit Hyperactivity Disorder
Autism Spectrum Disorder

Study Type: Observational
Study Design: Observational Model: Case Control
Official Title: Clinical, Environmental, Neurocognitive, Brain Imaging, and Genetic Validity of Autism and Attention-deficit Hyperactivity Disorder

Resource links provided by NLM:

Further study details as provided by National Taiwan University Hospital:

Biospecimen Retention:   Samples With DNA
The subjects will receive blood withdrawal. The blood sample will be used for establishing lymphoblastoid cell lines, which will be used for molecular genetic experiments

Estimated Enrollment: 300
Study Start Date: August 2010
Estimated Study Completion Date: July 2013
Control group
Normally developing children and adolescents
ADHD group
Children and adolescents with ADHD
ASD group
Children and adolescents with ASD

Detailed Description:

Specific Aims:

  1. To compare the individual phenotypes (emotion/behaviors, attention, impulsivity, etc.), endophenotypes (neurocognitive and social cognitive function, brain imaging), and genotypes, and growing environments (prenatal and developmental history, family, school, and social functions) among ASD, ADHD, and normal children to search for etiologies and developmental psychopathologies for ASD and ADHD and to test the discriminative validity of /between ASD and ADHD; and
  2. To examine whether the correlations and interactions among/within behavioral phenotypes, endophenotypes, genotypes, and environments vary across the three groups.

This 3-year program project consists of three projects investigating a sample, aged 8-17 years, of 100ASD, 100ADHD, and 100 normally developing children and adolescents.

  1. Using diagnostic interviews, observation, self-administered questionnaires, social cognitive tests (emotion recognition test, mentalizing test) and neurocognitive tests (CANTAB, CPT, WCST, WISC-III-R, Émbedded Figure Test, Global-local Perception Test), we will collect data from 300 subjects (100 for each group) regarding individual (phenotype & endophenotype) and growing environments.
  2. Using Diffusion Spectrum Imaging, resting-state functional MRI (fMRI), cognitive fMRI (fMRI- semantic association test, fMRI-stroop test), and template, we will collect brain imaging data from 90 subjects regarding individual endophenotype.
  3. We will collect the blood samples to establish the cell lines and to conduct SNP genotyping, haplotype, and copy number variation analysis.

With accomplishment of this project, we will not only establish the genotypes for phenotype and endophenotype of general characteristics and assist identifying pathogenesis of ASD and ADHD, but also contribute the etiological studies on several adult psychiatric disorders in future prospective follow-up of this cohort.


Ages Eligible for Study:   8 Years to 17 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
This 3-year program project consists of three projects investigating a sample, aged 8-17 years, of 100 normally developing children and adolescents, 100 ADHD, and 100 ASD.

Inclusion Criteria:

  • Control group: Subjects without ADHD or ASD; ADHD group & ASD group: subjects have a clinical diagnosis of ADHD, or ASD defined by the DSM-IV, which was made by a full-time board-certificated child psychiatrist at the first visit and following visits.
  • Ages range from 7 to 18 when we conduct the study.
  • Subjects have at least one biological parent.
  • Both parents are Han Chinese.
  • subjects and their biological parents (and siblings if any) consent to participate in this study for complete phenotype assessments and blood withdraw for genetic study

Exclusion Criteria:

  • The subjects will be excluded from the study if they currently meet criteria or have a history of the following condition as defined by DSM-IV: Schizophrenia, Schizoaffective Disorder, Organic Psychosis, Mental Retardation, or Pervasive Developmental Disorder. Moreover, the subjects will be excluded from the control group if have a history of the following condition as defined by DSM-IV: ADHD or ASD in addition to the above exclusion criteria.
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Please refer to this study by its identifier: NCT00916851

National Taiwan Univeristy Hospital
Taipei, Taiwan
Sponsors and Collaborators
National Taiwan University Hospital
Principal Investigator: Susan Shur-Fen Gau, MD, PhD National Taiwan University Hospital & College of Medicine
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: National Taiwan University Hospital Identifier: NCT00916851     History of Changes
Other Study ID Numbers: 200903062R 
Study First Received: June 8, 2009
Last Updated: July 8, 2012

Keywords provided by National Taiwan University Hospital:
attention-deficit hyperactivity disorder
autism spectrum disorders
normally developing children and adolescents
cognitive functions
brain imaging

Additional relevant MeSH terms:
Autistic Disorder
Attention Deficit Disorder with Hyperactivity
Autism Spectrum Disorder
Child Development Disorders, Pervasive
Pathologic Processes
Neurodevelopmental Disorders
Mental Disorders
Attention Deficit and Disruptive Behavior Disorders
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms processed this record on February 20, 2017