Pervasive Adult Developmental Disorder is a conceptualization I developed in because I found the Diagnostic and Statistical Manual IV categorization system for severe mental illness to be inadequate.

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 ...

Her daughter was diagnosed with a pervasive developmental delay, but Diane Turner's hopes for a wonderful life for Rebecca still came true. She shares where her family is now and how their dreams ...

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 ...