Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision Disorders Usually First Diagnosed in Infancy, Childhood, or Adolescence > Introduction > Learning Disorders (formerly Academic Skills Disorders) > 315.1 Mathematics Disorder Topics Discussed: mathematics disorder. Excerpt: "The essential feature of Mathematics Disorder is mathematical ability (as measured by individually administered standardized tests of mathematical calculation or reasoning) that falls substantially below that expected for the individual's chronological age, measured intelligence, and age-appropriate education (Criterion A). The disturbance in mathematics significantly interferes with academic achievement or with activities of daily living that require mathematical skills (Criterion B). If a sensory deficit is present, the difficulties in mathematical ability are in excess of those usually associated with it (Criterion C). If a neurological or other general medical condition or sensory deficit is present, it should be coded on Axis III. A number of different skills may be impaired in Mathematics Disorder, including "linguistic" skills (e.g., understanding or naming mathematical terms, operations, or concepts, and decoding written problems into mathematical symbols), "perceptual" skills (e.g., recognizing or reading numerical symbols or arithmetic signs, and clustering objects into groups), "attention" skills (e.g., copying numbers or figures correctly, remembering to add in "carried" numbers, and observing operational signs), and "mathematical" skills (e.g., following sequences of mathematical steps, counting objects, and learning multiplication tables).See the "Associated Features and Disorders" section for Learning Disorders (Associated Features and Disorders). Mathematics Disorder is commonly found in combination with Reading Disorder or Disorder of Written Expression...." DOI: 10.1176/appi.books.9780890423349.7358 The content above is only an excerpt. For full access subscribe now or log into your account below. You can also purchase 24- or 48-hour access; learn more Username: Password:     Athens Login FORGOT your subscriber username and/or password? Get a reminder via email: The email I registered with is:  Not a subscriber? Subscribe Today PsychiatryOnline is a powerful website that features DSM-IV-TR® and The American Journal of Psychiatry as the cornerstones of an unsurpassed collection of psychiatric references, including books, journals, and self-assessment tools. PsychiatryOnline’s innovative platform makes these resources easy and convenient to use, offering Precise and powerful searching across books and journals. Quick pathways to related material. Mobile access from any computer with a Web connection. Ability to download any book section to PDA. Links from bibliographic references to the full text of journal articles. References to material not located in the PsychiatryOnline collection lead you to PubMed. Learn more about PsychiatryOnline Need more help? PsychiatryOnline Customer Service may be reached by emailing PsychiatryOnline@psych.org or by calling 800-368-5777 (in the U.S.) or 703-907-7322 (outside the U.S.).