Disabilities affecting intellectual abilities

There are a variety of disabilities affecting cognitive ability. This is a broad concept encompassing various intellectual or cognitive deficits, including intellectual disability (formerly called mental retardation), deficits too mild to properly qualify as intellectual disability, various specific conditions (such as specific learning disability), and problems acquired later in life through acquired brain injuries or neurodegenerative diseases like dementia. Many of these disabilities have an effect on memory, which is the ability to recall what has been learned over time. Typically memory is moved from sensory memory to working memory, and then finally into long-term memory. People with cognitive disabilities typically will have trouble with one of these types of memory. Intellectual disability Intellectual disability, also known as general learning disability, and previously known as mental retardation (a term now considered offensive), is a generalized disorder characterized by significantly impaired cognitive functioning and deficits in two or more adaptive behaviors that appears before adulthood. It has historically been defined as an Intelligence Quotient (IQ) score under 70, but the definition now includes both one component relating to mental functioning and one relating to individuals' functional skills in their environment, so IQ is not the only factor. Intellectual disability must have appeared in the developmental period, not only as an adult. By contrast, people with cognitive impairment have, or previously had, normal IQ, but now show confusion, forgetfulness and difficulty concentrating; cognitive impairment is typical of brain injuries, side effects from medications, and dementia. Specific learning disability A specific learning disability is a classification including several disorders in which a person has difficulty learning in a typical manner, usually caused by an unknown factor or factors, but sometimes caused by stroke or other medical problems.