title: Ability of aphasic individuals to perform numerical processing and calculation tasks.
abstract: To compare performance on EC301 battery calculation task between aphasic subjects and normal controls of the same sex, age, and education.
  
  
  
  Thirty-two aphasic patients who had suffered a single left hemisphere stroke were evaluated. Forty-four healthy volunteers were also selected. All subjects underwent a comprehensive arithmetic battery to assess their numerical and calculation skills. Performances on numerical processing and calculation tasks were then analyzed.
  
  
  
  Aphasic individuals showed changes in their ability to perform numerical processing and calculation tasks that were not observed in the healthy population.
  
  
  
  Compared with healthy subjects of the same age and education level, individuals with aphasia had difficulty performing various tasks that involved numerical processing and calculation.
authors.affiliation: Universidade Varzea Grande, Cuiaba, MT, Brazil.
authors.forename: Gabriela
authors.initials: G
authors.lastname: De Luccia
authors.affiliation: Universidade Federal de Sao Paulo, Sao Paulo, SP, Brazil.
authors.forename: Karin Zazo
authors.initials: KZ
authors.lastname: Ortiz
mesh_terms: D000328:Adult; D000367:Age Factors; D001037:Aphasia / Q000503:physiopathology*; D016022:Case-Control Studies; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D009483:Neuropsychological Tests; D011340:Problem Solving / Q000502:physiology*; D011594:Psychometrics; D012016:Reference Values; D012737:Sex Factors; D012959:Socioeconomic Factors; D018709:Statistics, Nonparametric; D020521:Stroke / Q000503:physiopathology; D013647:Task Performance and Analysis; D058013:Test Taking Skills; D055815:Young Adult