title: Lateralization of cognitive functions in aphasia after right brain damage.
abstract: OBJECTIVE
  The lateralization of cognitive functions in crossed aphasia in dextrals (CAD) has been explored and compared mainly with cases of aphasia with left hemisphere damage. However, comparing the neuropsychological aspects of CAD and aphasia after right brain damage in left-handers (ARL) could potentially provide more insights into the effect of a shift in the laterality of handedness or language on other cognitive organization. Thus, this case study compared two cases of CAD and one case of ARL.
  
  
  METHODS
  The following neuropsychological measures were obtained from three aphasic patients with right brain damage (two cases of CAD and one case of ARL); language, oral and limb praxis, and nonverbal cognitive functions (visuospatial neglect and visuospatial construction).
  
  
  RESULTS
  All three patients showed impaired visuoconstructional abilities, whereas each patient showed a different level of performances for oral and limb praxis, and visuospatial neglect.
  
  
  CONCLUSIONS
  Based on the analysis of these three aphasic patients' performances, we highlighted the lateralization of language, handedness, oral and limb praxis, visuospatial neglect and visuospatial constructive ability in aphasic patients with right brain damage.
authors.affiliation: Department of Speech Pathology, Daegu University, Gyeongsan, Korea.
authors.forename: Ji-Wan
authors.initials: JW
authors.lastname: Ha
authors.forename: Sung-Bom
authors.initials: SB
authors.lastname: Pyun
authors.forename: Yu Mi
authors.initials: YM
authors.lastname: Hwang
authors.forename: Hyunsub
authors.initials: H
authors.lastname: Sim
mesh_terms: D000368:Aged; D001037:Aphasia / Q000209:etiology* / Q000503:physiopathology*; D001930:Brain Injuries / Q000150:complications*; D003071:Cognition / Q000502:physiology*; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged