<unk>  (ADHD-PI or ADHD-I), is one of the three presentations of attention<unk><unk><unk>  (ADHD). In 1987–1994, there were no subtypes and thus it was not distinguished from hyperactive ADHD in the Diagnostic and Statistical Manual (DSM-III-R). The<unk><unk>  subtype' is similar to the other presentations of ADHD except that it is characterized primarily by problems with inattention or a<unk>  of sustained attention, such as procrastination, hesitation, and forgetfulness. It differs in having fewer or no typical symptoms of<unk>  or impulsiveness. Lethargy and fatigue are sometimes reported, but ADHD-PI is a separate condition from the proposed cluster of symptoms known as sluggish cognitive tempo (SCT).
Attention deficit hyperactivity disorder predominantly inattentive
Recurrent brief depression
Attention deficit hyperactivity disorder controversies
Societal and cultural aspects of Tourette syndrome
Autism – Tics, AD/HD, and other Comorbidities
Depression in childhood and adolescence
ADHD Grown Up
Conditions comorbid to autism spectrum disorders