For the predominantly hyperactive-impulsive subtype, most of the symptoms (six or more) are in the hyperactivity-impulsivity categories. Fewer than six symptoms of inattention are present, although inattention may still be present to some degree. Symptoms of hyperactivity in children may include:
- Fidget and squirm in their seats
- Talk nonstop
- Dash around, touching or playing with anything and everything in sight
- Have trouble sitting still during dinner, school, and story time
- Be constantly in motion
- Have difficulty doing quiet tasks or activities.
- Be very impatient
- Blurt out inappropriate comments, show their emotions without restraint, and act without regard for consequences
- Have difficulty waiting for things they want or waiting their turns in games
- Be easily distracted, miss details, forget things, and frequently switch from one activity to another
- Have difficulty focusing on one thing
- Become bored with a task after only a few minutes, unless they are doing something enjoyable
- Have difficulty focusing attention on organizing and completing a task or learning something new
- Have trouble completing or turning in homework assignments, often losing things (e.g., pencils, toys, assignments) needed to complete tasks or activities
- Not seem to listen when spoken to
- Daydream, become easily confused, and move slowly
- Have difficulty processing information as quickly and accurately as others
- Struggle to follow instructions
Estimates of ADHD have varied, but it is believed that it affects between 3% and 5% of children. Although it has previously been thought of as a disorder of childhood, it is now understood that ADHD often continues well into adulthood. In fact, it is believed that as many as 30% to 70% of children with ADHD may continue to experience symptoms as an adult. Like ADHD in children, adult ADHD is not indicative of the person's creative capacity or intellectual abilities. In fact, people with all levels of talent and IQ may struggle with ADHD.
There are many adults who have never been identified as having ADHD in childhood, yet they present with difficulties and behaviors in adulthood that are suggestive of an undiagnosed and untreated ADHD. These difficulties and behaviors are often difficult to identify as ADHD because they are often mistaken for other things, such as stress and coping problems, substance abuse or other psychological problems. ADHD is not often recognized in these adults until they seek help with one of these conditions. In fact, many adults may first realize they have ADHD only when their own children or another family member are diagnosed with the condition.
Thomas E. Brown, Ph.D., an expert in the area of ADHD, and author of the highly recommended book, Attention Deficit Disorder: The Unfocused Mind in Children and Adults, suggests that ADHD reflects a developmental impairment of executive function. He noted that ADHD adults typically present with a variety of complaints, including concentration problems, disorganization or distraction, and difficulty initiating tasks, working consistently, and attending to detail. As a consequence, Dr. Brown identified six symptom clusters that were consistently reported by those with ADHD. These included problems in:
- Activation: organizing tasks and materials, estimating time, prioritizing tasks, and getting started on work tasks. Patients with ADHD describe chronic difficulty with excessive procrastination. Often they will put off getting started on a task, even a task they recognize as very important to them, until the very last minute. It is as though they cannot get themselves started until the point where they perceive the task as an acute emergency.
- Focus: focusing, sustaining focus, and shifting focus to tasks. Some describe their difficulty in sustaining focus as similar to trying to listen to the car radio when you drive too far away from the station and the signal begins fading in and out: you get some of it and lose some of it. They say they are distracted easily not only by things that are going on around them, but also by thoughts in their own minds. In addition, focus on reading poses difficulties for many. Words are generally understood as they are read, but often have to be read over and over again in order for the meaning to be fully grasped and remembered.
- Effort: regulating alertness, sustaining effort, and processing speed. Many with ADHD report they can perform short-term projects well, but have much more difficulty with sustained effort over longer periods of time. They also find it difficult to complete tasks on time, especially when required to do expository writing. Many also experience chronic difficulty regulating sleep and alertness. Often they stay up too late because they can't shut their head off. Once asleep, they often sleep like dead people and have a big problem getting up in the morning.
- Emotion: managing frustration and modulating emotions. Although DSM-IV does not recognize any symptoms related to the management of emotion as an aspect of ADHD, many with this disorder describe chronic difficulties managing frustration, anger, worry, disappointment, desire, and other emotions. They speak as though these emotions, when experienced, take over their thinking as a computer virus invades a computer, making it impossible for them give attention to anything else. They find it very difficult to get the emotion into perspective, to put it to the back of their mind, and to get on with what they need to do.
- Memory: utilizing working memory and accessing recall. Very often, people with ADHD will report that they have adequate or exceptional memory for things that happened long ago, but great difficulty in being able to remember where they just put something, what someone just said to them, or what they were about to say. They may describe difficulty holding one or several things "on line" while attending to other tasks. In addition, persons with ADHD often complain that they cannot pull out of memory information they have learned when they need it.
- Action: monitoring and regulating self-action. Many persons with ADHD, even those without problems of hyperactive behavior, report chronic problems in regulating their actions. They often are too impulsive in what they say or do, and in the way they think, jumping too quickly to inaccurate conclusions. Persons with ADHD also report problems in monitoring the context in which they are interacting. They fail to notice when other people are puzzled, or hurt or annoyed by what they have just said or done and thus fail to modify their behavior in response to specific circumstances. Often they also report chronic difficulty in regulating the pace of their actions, in slowing self and/or speeding up as needed for specific tasks.
- doesn’t remember being told things
- saying things without thinking (sometimes resulting in social inappropriateness)
- “zoning out” in conversations
- problems dealing with frustration
- trouble getting started on a task (procrastination)
- underestimating time needed to complete a task (poor planning, time management)
- leaving a mess and being disorganized (can include a messy or disorganized home, office)
- forgetting special dates, meetings or always being late
- not finishing a project
As a consequence of all of the above, the ADHD adult can be experienced as unmotivated, lazy or immature. They may be experienced as requiring constant encouragement or supervision in order to remain focused or complete role appropriate tasks. They may be experienced as unreliable or insensitive. Their verbal impulsivity can make other people feel uncomfortable. People with ADHD may often enjoy vigorous conversation as a source of stimulation, however may struggle to recognize that others may not share this enjoyment, As a result, while others in similar situations may know to tone down the argument and move onto another topic, the ADHD adult may persist in the conversation, leading to social unpleasantness.
Many times, adults with ADHD might unconsciously seek relationships with those who act as organizers for them - disciplined, controlled people who 'loan' their organizing functions to the ADHD adult from time to time. While this may often result in a cooperative and supportive relationship, frustrations in the relationship may exist as the ADHD adult may be experienced as needing a lot of management, and as being demanding and immature. The partner may find that they are constantly nagging the ADHD adult to get up, to tidy up, to get organized, and to take care of business. The ADHD adult may be constantly misplacing their keys or forgetting to do important tasks. In addition, the partner may sometimes feel hurt that their ADHD adult loved one doesn’t seem to listen to them, blurts out hurtful things, and leaves them with the bulk of the responsibility for organizing and planning.
The ADHD adult may struggle in making career decisions, in being disciplined in ways that allow for the successful development of a career, or may demonstrate impulsivity resulting in frequent career changes. At work, they may be disorganized, may procrastinate or may be verbally impulsive which may negatively impact relationships at work. They may demonstrate difficulty concentrating, completing tasks, listening, and relating to others which can also lead to trouble at work. They may make frequent errors in writing and spelling which they do not notice soon enough. In their personal lives, managing finances may be a concern. The ADHD adult may find him or herself struggling to pay bills, losing paperwork, missing deadlines, or be in debt due to impulsive spending. Their inattention and impulsivity may lead to frequent clumsiness or an increased risk for car accidents or traffic tickets.
Impulsivity and trouble with organization in the ADHD adult can also lead to problems with health, such as compulsive eating or reaching for unhealthy foods, a reinforcing cycle of alcohol and drug abuse, or trouble making appointments or forgetting medication for a chronic condition. Many ADHD adults may self medicate with chronic marijuana use (or other substances) in their unconscious attempts to increase their focus or regulate their affect.
Structure and organization can significantly improve the life of the ADHD adult. Personal aids such as PDAs and other organizers can be invaluable in keeping the ADHD adult on track and on task. Developing consistent schedules for everything, including eating and sleeping can also be important in regulating affect and behavior. However, medication intervention, coupled with the above changes, has often been the most effective treatment for the ADHD adult. Adults who might suspect a diagnosis of ADHD are encouraged to obtain a proper assessment such as psychodiagnostic testing by a skilled psychologist, to properly confirm the diagnosis of ADHD.