Clinical, Environmental, Neurocognitive, Brain Imaging, and Genetic Validity of Autism and ADHD
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 Design:||Observational Model: Case Control|
|Official Title:||Clinical, Environmental, Neurocognitive, Brain Imaging, and Genetic Validity of Autism and Attention-deficit Hyperactivity Disorder|
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
|Study Start Date:||August 2010|
|Estimated Study Completion Date:||July 2013|
Normally developing children and adolescents
Children and adolescents with ADHD
Children and adolescents with ASD
- 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
- 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.
- 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.
- 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.
- 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.
|Contact: Susan Shur-Fen Gau, MD, PhD||886-2-23123456 ext email@example.com|
|National Taiwan Univeristy Hospital||Recruiting|
|Contact: Susan Shur-Fen Gau, MD, PhD 886-2-23123456 ext 66802 firstname.lastname@example.org|
|Principal Investigator: Susan Shur-Fen Gau, MD, PhD|
|Principal Investigator:||Susan Shur-Fen Gau, MD, PhD||National Taiwan University Hospital & College of Medicine|