I received a call yesterday from an expert working with children with Oppositional Defiant Disorder in the Midwest, who was having trouble with her 2 year old, female, spayed Presa Canario / Pointer mix. (samthedogtrainer.com)
Symptoms of oppositional defiant disorder include regular temper tantrums, excessive arguments with adults,... (additudemag.com)
Findings suggest that comorbidity between ADHD and depression is less than chance would predict in community studies, and shared risk for oppositional defiant disorder accounts for the association that is seen in clinical studies. (link.springer.com)