In the four years I worked at the University of Pennsylvania (1999-2003), I directed a randomized controlled clinical trial assessing the effectiveness of a brief cognitive therapy intervention for ...

Because boys outnumber girls with PDD, relatively little research has focused on girls. Most existing studies have centered on 2 forms of PDD--autism and Rett disorder. The ratio of boys to girls with ...

We hypothesize that Duchenne muscular dystrophy and autism spectrum disorder/pervasive developmental disorder co-occur with a greater than random frequency. In this study, we set out to reject the ...

While there may seem to be an upwards trend in the number of children with this disorder, it is more likely due to expansion of its clinical criteria.