# Russell Barkley

Russell A. Barkley (born (1949-12-27) December 27, 1949) is a clinical psychologist who is a clinical professor of psychiatry at the VCU Medical Center and an author of books on attention-deficit hyperactivity disorder (ADHD). Involved in research since 1973 and a licensed psychologist since 1977, he is an expert on ADHD and has devoted much of his scientific career to studying ADHD and related problems like childhood defiance. He proposed to change the name of sluggish cognitive tempo (SCT) to concentration deficit disorder (CDD).Author of 23 books and more than 280 scientific papers and book chapters, his research articles include multiple papers from his longitudinal study in Milwaukee, WI, his development of a theory of ADHD as a disorder of executive functioning and self-regulation, his early research on family interaction patterns in ADHD children, his more recent studies on the nature of ADHD in adults, early intervention for children at risk for ADHD, training parents to manage ADHD and defiant behavior, and the nature of sluggish cognitive tempo.