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Resource : Definitions of Disabilities

These are the examples of common developmental disabilities. If you notice the signs of developmental disabilities, it is critical to discuss with a specialist such as a special education teacher, doctor, psychologist, or therapist who has knowledge in developmental disabilities and receive appropriate diagnosis. Appropriate treatment and intervention strategies vary by individual needs. Please discuss details with a specialist.

Attention Deficit Hyperactivity Disorder (ADHD) is characterized by the difficulties in sitting still, controling their own behaviors, and paying attention. These signs of ADHD appear around age 7. It is common for young children to have attention or concentration difficulties, so identifying ADHD in young age is extremely difficult. The following are the types of ADHD:

Types of Attention Deficit Hyperactivity Disorder

Predominantly Inattentive Type

Individuals with ADHD, predominantly inattentive type have attention and concentration difficulties. Children with this type may not be running around, but may be easily distracted by surroundings while they are sitting still.

Predominantly Hyperactive-Impulsive Type

Individuals with ADHD, predominantly hyperactive-impulsive type are impatient and having trouble doing quiet tasks. Children with this type may be fidgeting, talking nonstep, or interrupting conversations.

Combined Type

Individuals with ADHD, combined type have both features of predominantly inattentive type and predominantly hyperactive-impulsive type.