Communication disorder

Background
A communication disorder is a disease or condition that partially or totally prevents human communication. The defect can be in producing, receiving or understanding the communication.

Examples of communication disorders:
 * autism -- a developmental defect that affects understanding of emotional communication
 * aphasia -- loss of the ability to produce or comprehend language
 * Learning disability - Both speaking and listening components of the definition
 * Dysnomia - Deficit involving word retrieval
 * Asperger Syndrome - Areas of social and pragmatic language
 * Semantic Pragmatic Disorder - Challenges with the semantic and pragmatic aspects of language
 * blindness -- a defect of the eye or visual system
 * deafness -- a defect of the ear or auditory system
 * dyslexia -- a defect of the systems used in reading
 * dyscalculia -- a defect of the systems used in communicating numbers
 * expressive language disorder -- affects speaking and understanding where there is no delay in non-verbal intelligence.
 * mixed receptive-expressive language disorder -- affects speaking, understanding, reading and writing where there is no delay in non-verbal intelligence.
 * speech disorders such as
 * cluttering, a speech organization disorder
 * stuttering
 * oesophageal voice
 * speech sound disorder
 * specific language impairment
 * dysarthria

See also:
 * Glossary of medical terms related to communications disorders