Mental Health: A Report by the Surgeon General

Provided by David Satcher, M.D., Ph.D.
Surgeon General of the United States of America

Chapter 3: Children and Mental Health

Overview of Mental Disorders in Children

Attention-Deficit/Hyperactivity Disorder

As its name implies, attention-deficit/hyperactivity disorder (ADHD) is characterized by two distinct sets of symptoms: inattention and hyperactivity-impulsivity (see Table 3-3). Although these problems usually occur together, one may be present without the other to qualify for a diagnosis (DSM-IV). Inattention or attention deficit may not become apparent until a child enters the challenging environment of elementary school. Such children then have difficulty paying attention to details and are easily distracted by other events that are occurring at the same time; they find it difficult and unpleasant to finish their schoolwork; they put off anything that requires a sustained mental effort; they are prone to make careless mistakes, and are disorganized, losing their school books and assignments; they appear not to listen when spoken to and often fail to follow through on tasks (DSM-IV; Waslick & Greenhill, 1997).

The symptoms of hyperactivity may be apparent in very young preschoolers and are nearly always present before the age of 7 (Halperin et al., 1993; Waslick & Greenhill, 1997). Such symptoms include fidgeting, squirming around when seated, and having to get up frequently to walk or run around. Hyperactive children have difficulty playing quietly, and they may talk excessively. They often behave in an inappropriate and uninhibited way, blurting out answers in class before the teacher’s question has been completed, not waiting their turn, and interrupting often or intruding on others’ conversations or games (Waslick & Greenhill, 1997).

Many of these symptoms occur from time to time in normal children. However, in children with ADHD they occur very frequently and in several settings, at home and at school, or when visiting with friends, and they interfere with the child’s functioning. Children suffering from ADHD may perform poorly at school; they may be unpopular with their peers, if other children perceive them as being unusual or a nuisance; and their behavior can present significant challenges for parents, leading some to be overly harsh (DSM-IV).

Inattention tends to persist through childhood and adolescence into adulthood, while the symptoms of motor hyperactivity and impulsivity tend to diminish with age. Many children with ADHD develop learning difficulties that may not improve with treatment (Mannuzza et al., 1993). Hyperactive behavior is often associated with the development of other disruptive disorders, particularly conduct and oppositional-defiant disorder (see Disruptive Disorders). The reason for the relationship is not known. Some believe that the impulsivity and heedlessness associated with ADHD interfere with social learning or with close social bonds with parents in a way that predisposes to the development of behavior disorders (Barkley, 1998).

Even though a great many children with this disorder ultimately adjust (Mannuzza et al., 1998), some—especially those with an associated conduct or oppositional-defiant disorder—are more likely to drop out of school and fare more poorly in their later careers than children without ADHD. As they grow older, some teens who have had severe ADHD since middle childhood experience periods of anxiety or depression. This seems to be especially common in children whose predominant symptom is inattention (Morgan et al., 1996). Excellent reviews of ADHD can be found in DSM-IV and other sources⁵.

Table 3-3. DSM-IV criteria for Attention-Deficit/Hyperactivity Disorder

 

Either (1) or (2):   six (or more) of the following symptoms of inattention have persisted for at least 6 months to a degree that is maladaptive and inconsistent with developmental level: Inattention   often fails to give close attention to details or makes careless mistakes in schoolwork, work, or other activities often has difficulty sustaining attention in tasks or play activities often does not seem to listen when spoken to directly often does not follow through on instructions and fails to finish schoolwork, chores, or duties in the workplace (not due to oppositional behavior or failure to understand instructions) often has difficulty organizing tasks and activities often avoids, dislikes, or is reluctant to engage in tasks that require sustained mental effort (such as schoolwork or homework) often loses things necessary for tasks or activities (e.g., toys, school assignments, pencils, books, or tools) is often easily distracted by extraneous stimuli is often forgetful in daily activities   six (or more) of the following symptoms of hyperactivity-impulsivity have persisted for at least 6 months to a degree that is maladaptive and inconsistent with developmental level:           Hyperactivity   often fidgets with hands or feet or squirms in seat often leaves seat in classroom or in other situations in which remaining seated is expected often runs about or climbs excessively in situations in which it is inappropriate (in adolescents or adults, may be limited to subjective feelings of restlessness) often has difficulty playing or engaging in leisure activities quietly is often “on the go” or often acts as if “driven by a motor” often talks excessively Impulsivity   often blurts out answers before questions have been completed often has difficulty awaiting turn often interrupts or intrudes on others (e.g., butts into conversations or games)   Some hyperactive-impulsive or inattentive symptoms that cause impairment were present before age 7 years.   Some impairment from the symptoms is present in two or more settings (e.g., at school [or work] and at home).   There must be clear evidence of clinically significant impairment in social, academic, or occupational functioning.   The symptoms do not occur exclusively during the course of a pervasive developmental disorder, schizophrenia, or other psychotic disorder and are not better accounted for by another mental disorder (e.g., mood disorder, anxiety disorder, dissociative disorder, or a personality disorder).

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