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Conditions comorbid to autism. Autism spectrum disorder (ASD) is a neurodevelopmental disorder that begins in early childhood, persists throughout adulthood, and affects any person in this way: social communication and restricted, repetitive patterns of behavior. [1] There are many conditions comorbid to autism spectrum disorder, such as ...
Heritability of autism. The heritability of autism is the proportion of differences in expression of autism that can be explained by genetic variation; if the heritability of a condition is high, then the condition is considered to be primarily genetic. Autism has a strong genetic basis. Although the genetics of autism are complex, autism ...
There are many known environmental, genetic, and biological causes of autism. Research indicates that genetic factors predominantly contribute to its appearance. The heritability of autism is complex and many of the genetic interactions involved are unknown. [1] In rare cases, autism has been associated with agents that cause birth defects. [4]
Autism spectrum disorders (ASD) are neurodevelopmental disorders that begin in early childhood, persist throughout adulthood, and affect three crucial areas of development: communication, social interaction and restricted patterns of behavior. [1] There are many conditions comorbid to autism spectrum disorders such as attention-deficit ...
ADNP syndrome, also known as Helsmoortel-Van der Aa syndrome (HVDAS), is a non-inherited neurodevelopmental disorder caused by mutations in the activity-dependent neuroprotector homeobox (ADNP) gene. [1][2] The hallmark features of the syndrome are intellectual disability, global developmental delays, global motor planning delays, and autism ...
t. e. Diagnoses of autism have become more frequent since the 1980s, which has led to various controversies about both the cause of autism and the nature of the diagnoses themselves. Whether autism has mainly a genetic or developmental cause, and the degree of coincidence between autism and intellectual disability, are all matters of current ...
The imprinted brain hypothesis is an unsubstantiated hypothesis in evolutionary psychology regarding the causes of autism spectrum and schizophrenia spectrum disorders, first presented by Bernard Crespi and Christopher Badcock in 2008. It claims that certain autistic and schizotypal traits are opposites, and that this implies the etiology of ...
Epigenetics of autism. Autism spectrum disorder (ASD) refers to a variety of conditions typically identified by challenges with social skills, communication, speech, and repetitive sensory-motor behaviors. The 11th International Classification of Diseases (ICD-11), released in January 2021, characterizes ASD by the associated deficits in the ...