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The causes and contributing factors for autism are poorly understood. Evidence suggests that incidence is increasing, but diagnostic changes and improvements may be playing a role. Both genetic and environmental factors appear to play a role. Autopsy studies demonstrate structural changes in the brain and clinical investigations reveal neurophysiologic differences in information processing in autistic versus normal children. Members of our team recently demonstrated altered levels of certain neuropeptides at birth in children who later developed autism.
This case-control study is the first large-scale epidemiologic investigation of underlying causes for autism and triggers of regression. This study capitalizes on the strengths of the case-control design, which is well suited to examine a broad array of factors for rare conditions that are thought to be multifactorial. Comparisons will be made with both general population controls and mentally retarded children.
The aims are to assess the influence of exogenous exposures, the role of susceptibility factors, and the interplay between these two in the etiology of autism and its phenotypic variation. Chemicals with known or suspected neurodevelopmental toxicity, such as PCB’s, certain pesticides, and metals, are being investigated. This study pursues several hypotheses that have recently gained attention, including the combined measles, mumps, rubella vaccine and mercury present in vaccines given during infancy and early childhood. Additionally, biochemical susceptibility is examined through characterization of metabolic, immunologic, and neuronal gene expression profiles and genetic polymorphisms.
Observational Model: Case Control, Primary Purpose: Screening, Time Perspective: Cross-Sectional, Time Perspective: Retrospective/Prospective
University of California
National Institute of Environmental Health Sciences (NIEHS)
Published on BioPortfolio: 2014-08-27T03:53:31-0400
The purpose of this study is to evaluate the utility of and to clinically validate the Autism Behavior Inventory (ABI) in measuring clinical symptoms of Autism Spectrum Disorder (ASD) comp...
The purpose of this study is to investigate brain development in autism by longitudinally assessing children with autism, as well as typically developing controls, using advanced MR techni...
The purpose of this study is to determine whether CM-AT is safe and effective in treating the core symptoms of autism.
Background: The number of adults with autism is expected to rise significantly in the near future, due to two main reasons: First, a dramatic increase in the estimates of the prevalence of...
Autism Spectrum Disorder is a neurodevelopmental disorder characterized by impaired social communication and repetitive or stereotyped behaviors. According to the World Health Organization...
The problem of epilepsy comorbidity with autism spectrum disorders in children is discussed. The incidence data of autism spectrum disorders in epilepsy, epileptiform discharges on the EEG in autism s...
The autism-spectrum quotient scale was developed to study autism as a spectrum. Few studies have examined the psychometric properties of the 10 item AQ (AQ-10). We examine the AQ-10 measurement abilit...
Misconceptions and stigma associated with autism vary across cultures and may be influenced by various factors. Undergraduates in Japan (N = 212) and the United States (US) (N = 365) completed...
Autism is a brain disorder characterized by social impairments. Progress in understanding autism has been hindered by difficulty in obtaining brain-relevant tissues [e.g., cerebrospinal fluid (CSF)] b...
Speech-language pathologists (SLPs) are significant team members in the identification, assessment, and rehabilitation of children with autism. With a recent upsurge in the number of children with aut...
A childhood disorder predominately affecting boys and similar to autism (AUTISTIC DISORDER). It is characterized by severe, sustained, clinically significant impairment of social interaction, and restricted repetitive and stereotyped patterns of behavior. In contrast to autism, there are no clinically significant delays in language or cognitive development. (From DSM-IV)
Wide continuum of associated cognitive and neurobehavioral disorders, including, but not limited to, three core-defining features: impairments in socialization, impairments in verbal and nonverbal communication, and restricted and repetitive patterns of behaviors. (from DSM-V)
Behavioral science applied with the aim of improving socially important issues such as behavior problems and learning. For individuals diagnosed with intellectual and developmental disabilities including AUTISM, techniques can be categorized as comprehensive or focused.
Autism affects half a million people in the UK. Men are affected more than women. People with autism have said that the world, to them, is a mass of people, places and events which they struggle to make sense of, and which can cause them considerable a...
Neurology - Central Nervous System (CNS)
Alzheimer's Disease Anesthesia Anxiety Disorders Autism Bipolar Disorders Dementia Epilepsy Multiple Sclerosis (MS) Neurology Pain Parkinson's Disease Sleep Disorders Neurology is the branch of me...