evidence: Background: Dyslexia is a learning disability characterized by challenges identifying speech sounds and learning how to connect them to letters and words, according to the Mayo Clinic. Its chief symptoms include difficulties with spelling, reading, pronunciation of words and processing auditory information. It is a common learning disability among children, although adolescents and adults with dyslexia often exhibit symptoms as well. [...] Background: According to the University of Kansas Research & Training Center on Independent Living, learning disability "describes a neurologically based condition that may manifest itself as difficulty learning and using skills in reading (called dyslexia), writing (dysgraphia), mathematics (dyscalculia) and other cognitive processes due to differences in how the brain processes information. Individuals with learning disabilities have average or above average intelligence, and the term does not include a learning problem that is primarily the result of another cause, such as intellectual disabilities or lack of educational opportunity." [...] See also Intellectual disabilities/intellectually disabled