Identifying Attention Deficit Hyperactivity Disorder (ADHD)

Identifying ADHD: A neurological condition

Attention Deficit Hyperactivity Disorder (ADHD) is a neurological condition that involves problems with inattention and hyperactivity-impulsivity that are developmentally inconsistent with the age of the child.

Identifying ADHD A neurological condition

We are now learning that ADHD is not a disorder of attention, as had long been assumed. Rather, it is a function of developmental failure in the brain circuitry that monitors inhibition and self-control. This loss of self-regulation impairs other important brain functions crucial for maintaining attention, including the ability to defer immediate rewards for later gain.

Behavior of children with ADHD can also include excessive motor activity. The high energy level and subsequent behavior are often misperceived as purposeful noncompliance when, in fact, they may be a manifestation of the disorder and require specific interventions. Children with ADHD exhibit a range of symptoms and levels of severity. In addition, many children with ADHD often are of at least average intelligence and have a range of personality characteristics and individual strengths.

Behaviors in kids with Attention Deficit Hyperactivity Disorder

Children with ADHD typically exhibit behavior that is classified into two main categories: poor sustained attention and hyperactivity-impulsiveness. As a result, three subtypes of the disorder have been proposed by the American Psychiatric Association in the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV): predominantly inattentive, predominantly hyperactive-impulsive, and combined types.

A child expressing hyperactivity commonly will appear fidgety, have difficulty staying seated or playing quietly, and act as if driven by a motor.

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Children displaying impulsivity often have difficulty participating in tasks that require taking turns. Other common behaviors may include blurting out answers to questions instead of waiting to be called and flitting from one task to another without finishing.

The inattention component of ADHD affects the educational experience of these children because ADHD causes them to have difficulty in attending to detail in directions, sustaining attention for the duration of the task, and misplacing needed items. These children often fail to give close attention to details, make careless mistakes, and avoid or dislike tasks requiring sustained mental effort.

Learning disabilities

Although these behaviors are not in themselves a learning disability, almost one-third of all children with ADHD have learning disabilities. Children with ADHD may also experience difficulty in reading, math, and written communication. Furthermore, ADHD commonly occurs with other conditions.



Current literature indicates that approximately 40-60 percent of children with ADHD have at least one coexisting disability. Although any disability can coexist with ADHD, certain disabilities seem to be more common than others. These include disruptive behavior disorders, mood disorders, anxiety disorders, tics and Tourette’s Syndrome, and learning disabilities. In addition, ADHD affects children differently at different ages. In some cases, children initially identified as having hyperactive-impulsive subtype are subsequently identified as having the combined subtype as their attention problems surface.

These characteristics affect not only the academic lives of students with ADHD, they may affect their social lives as well.

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Children with ADHD of the predominantly hyperactive-impulsive type may show aggressive behaviors, while children of the predominantly inattentive type may be more withdrawn. Also, because they are less disruptive than children with ADHD who are hyperactive or impulsive, many children who have the inattentive type of ADHD go unrecognized and unassisted. Both types of children with ADHD may be less cooperative with others and less willing to wait their turn or play by the rules. Their inability to control their own behavior may lead to social isolation. Consequently, the children’s self-esteem may suffer.

In the United States, an estimated 1.46 to 2.46 million children (3 percent to 5 percent of the student population) have ADHD. Boys are four to nine times more likely to be diagnosed, and the disorder is found in all cultures, although prevalence figures differ.

How is ADHD identified?

Although toddlers and preschoolers, on occasion, may show characteristics of ADHD, some of these behaviors may be normal for their age or developmental stage. These behaviors must be exhibited to an abnormal degree to warrant identification as ADHD. Even with older children, other factors (including environmental influences) can produce behaviors resembling ADHD.

A person must exhibit several characteristics to be clinically diagnosed as having ADHD:

Severity. The behavior in question must occur more frequently in the child than in other children at the same developmental stage.
Early onset. At least some of the symptoms must have been present prior to age 7.
Duration. The symptoms must also have been present for at least 6 months prior to the evaluation.
Impact. The symptoms must have a negative impact on the child’s academic or social life.
Settings. The symptoms must be present in multiple settings.
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Find out more about the specifics of identifying ADHD in this article: The DSM-5 diagnostic criteria for ADHD



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