Neurological impairments are a group of disabilities including disorders of the brain and central nervous system that considerably limit a person's development, understanding, memory, attention span, fine muscle control, use of language, or ability to adjust to new situations. Generally, these impairments begin during childhood or adolescence. People with neurological impairments may experience a variety of learning difficulties or social behavior problems. They also may have special care needs because of problems in muscular control. Neurological impairments can be difficult to diagnose and to treat. Approximately 34,000 people in New York State are thought to have some type of severe neurological impairment.