Impaired focus, hyperactivity, and impulsivity.

Alternative form of attention deficit hyperactivity disorder [(neurology, pathology, psychiatry, psychology) A developmental disorder in which a person has difficulty to concentrate and a persistent pattern of impulsiveness and inattention, with or without a component of hyperactivity.]

Attention deficit hyperactivity disorder predominantly inattentive (ADHD-PI or ADHD-I), is one of the three presentations of attention deficit hyperactivity disorder.

Adult Attention Deficit Hyperactivity Disorder is the persistence of attention deficit hyperactivity disorder into adulthood.