Autism is a complex, behaviorally defined, static disorder of the immature brain that is of
great concern to the practicing pediatrician because of an astonishing 556% reported …

Autism spectrum disorders (ASDs) are complex, lifelong, neurodevelopmental conditions of
largely unknown cause. They are much more common than previously believed, second in …

Importance Autism spectrum disorder (ASD) aggregates in families, but the individual risk
and to what extent this is caused by genetic factors or shared or nonshared environmental …

OBJECTIVE: The recurrence risk of autism spectrum disorders (ASD) is estimated to be
between 3% and 10%, but previous research was limited by small sample sizes and biases …

Advances in the fields of cognitive and affective developmental neuroscience,
developmental psychopathology, neurobiology, genetics, and applied behavior analysis …

Deficits in social interaction are important early markers for autism and related
neurodevelopmental disorders with strong genetic components. Standardized behavioral …

Family history data on 99 autistic and 36 Down's syndrome probands are reported. They
confirmed a raised familial loading for both autism and more broadly defined pervasive …

Objective: Studies of families ascertained through a single autistic proband suggest that the
genetic liability for autism may be expressed in nonautistic relatives in a phenotype that is …

Autism is an etiologically and clinically heterogeneous group of disorders, diagnosed solely
by the complex behavioral phenotype. On the basis of the high-heritability index, geneticists …

Background: Autism is rarely diagnosed before three years of age despite evidence
suggesting prenatal abnormalities in neurobiological processes. Little is known about when …