The purpose of the current study was to use the infant sibling design to explore whether proband traits of autism and ADHD could provide information about their infant sibling's temperament. This could help us to gain information about the extent to which infant temperament traits are differentially associated with autism and ADHD traits. We used…

Fragile X syndrome (FXS) is characterized by both social approach and social avoidance. However, the age of emergence and developmental trajectory of social avoidance has not been examined. This study investigates the longitudinal developmental trajectory and dynamic nature of social avoidance in males with FXS from infancy through young adulthood…

We explored possible cognitive, behavioral, emotional, and physiological risk markers for sleep disturbance in children with autism spectrum disorders. Data from 1,583 children in the Autism Treatment Network were analyzed. Approximately 45 potential predictors were analyzed using hierarchical regression modeling. As medication could confound…

A study of three students (ages 9-14) with autism investigated whether deficits in deceptive play skills are general to all persons with autism and if these deficits can be overcome through repetitive reinforcement techniques. Results found the students could learn to deceive, even without formal intensive training. (Author/CR)

Effects of fenfluramine on autistic children, aged 7-16, were examined in double-blind testing with placebos. Serotonin levels, intelligence and behavior tests, videotaped free play data, and other tests were used for assessment. Serotonin decreased with administration of fenfluramine, and increased with reinstatement of placebo. No tests…

Examination of 53 children with autism supported the validity of the subtypes "aloof" and "active-but-odd" as predictors of behavior across language/communication, reciprocal social interaction, and stereotyped behavior/restricted interest domains. Partial support for an intermediate, "passive" subtype was garnered. (Author/JDD)

This study compared the adaptive behaviors of 20 autistic, 20 Down's syndrome, and 20 normal children matched on age equivalent adaptive behavior, gender, race, birth order, family size, and socioeconomic status. The autistic children displayed significant and pervasive deficits in the acquisition of adaptive social skills and greater variability…