Difference Between Mental Retardation And ADHD
Mental retardation is characterized by a general, below-average ability to learn (low IQ) and trouble participating in daily activities. The sternness of mental retardation can range from mild to profound, the most serious type. Most cases are mild. Few are profound. People who have mild mental retardation can often live and work independently. Those with profound mental retardation usually need close supervision throughout life. Individuals with learning and communication disorders have normal intelligence. But they have difficulty in a particular learning area, such as reading, mathematics, or writing. Others may have trouble expressing themselves or understanding language.
Children with pervasive developmental disorders (PDD) have severe problems in several areas of development. These problems cause difficulty relating to others. Many children with PDD also have trouble with language and are unable to communicate normally. Often they show unusual interests or body movements. Two of the more frequently seen types of PDD are autistic disorder and Asperger’s disorder.
Attention-deficit/hyperactivity disorder (ADHD) is seen in approximately 3 to 5 percent of school-age children. It occurs mostly in boys. The two major types of symptoms are inattention and hyperactivity or impulsiveness. Children with ADHD may lose things, be easily distracted, and have trouble paying attention. They may also seem to be constantly talking and unable to sit still. All of these behaviors are normal in children to some degree. ADHD is diagnosed only when the behaviors are persistent and interfere with normal daily activities at school and at home.