A person with intellectual disability is someone who has some difficulty in identifying, interpreting, or understanding words and ideas.
This may be due to intellectual disability or some other disability.
The definition of an intellectual disability has changed over time and there are different definitions.
For example, people with severe intellectual disability have trouble with reading, writing, listening, and speaking.
In the United States, the National Institute of Health defines intellectual disability as a physical impairment that substantially limits one or more major life activities.
Individuals with severe or profound intellectual disability may have trouble completing certain types of education, including in a classroom setting.
For more information on intellectual disability and related conditions, visit the American Academy of Arts and Sciences website.
The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) defines intellectual impairment as a “mental impairment that significantly limits one, or a combination of, major life activity or activity in which one or both major life interests are primarily engaged.”
Individuals with intellectual disabilities may also have difficulty learning new things, making decisions, and expressing themselves.
For details, visit: http://www.cdc.gov/mentalhealth/mental-illness/mental/disability.htm