#aphasia  inability to use or understand language (spoken or written) because of a brain lesion
  supertype:  brain_disorder__braindisorder__encephalopathy__brain_disease__braindisease  any disorder or disease of the brain
  subtype:  auditory_aphasia__acoustic_aphasia__word_deafness  an impairment in understanding spoken language that is not attributable to hearing loss
  subtype:  conduction_aphasia__associative_aphasia__associativeaphasia  aphasia in which the lesion is assumed to be in the association tracts connecting the various language centers in the brain; patient's have difficulty repeating a sentence just heard
  subtype:  global_aphasia__total_aphasia  loss of all ability to communicate
  subtype:  motor_aphasia__motoraphasia__Broca's_aphasia__ataxic_aphasia__expressive_aphasia__nonfluent_aphasia__nonfluentaphasia  aphasia in which expression by speech or writing is severely impaired
  subtype:  nominal_aphasia__nominalaphasia__anomic_aphasia__anomia__amnesic_aphasia__amnesicaphasia__amnestic_aphasia  inability to name objects or to recognize written or spoken names of objects
  subtype:  transcortical_aphasia__transcorticalaphasia  a general term for aphasia that results from lesions outside of Broca's area or Wernicke's area of the cerebral cortex
  subtype:  visual_aphasia__alexia__word_blindness  inability to perceive written words
  subtype:  Wernicke's_aphasia__fluent_aphasia__receptive_aphasia__receptiveaphasia__sensory_aphasia__impressive_aphasia  aphasia characterized by fluent but meaningless speech and severe impairment of the ability understand spoken or written words

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