ADHD (Attention-Deficit/Hyperactivity Disorder)
is the term used in the current Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) diagnostic criteria.
ADD (Attention Deficit Disorder) with or without hyperactivity
is the older term from the DSM-IIIR. Thus in some older literature you will find this term as a synonym for ADHD.
- Often easily distracted by extraneous stimuli
- Often difficulty following through on instructions from others
- Difficulty sustaining attention
- Often does not seem to listen to what is being said
- Tendency to lose things necessary for tasks or activities
- Difficulty organizing goal-directed activities
- Often shifts from one uncompleted activity to another
Some research shows that children with hyperactive-impulsive symptoms tend to have more behavioural problems and conduct disorder, while children with the inattentive type (ADD) have a higher risk of comorbid depression or anxiety disorders.
Children with several symptoms of both the inattentive and the hyperactive type are diagnosed as "combined type" ADHD.