title: [Cognitive performance of right-handed and left-handed persons on the Wechsler Adult Intelligence Scale (WAIS-III)].
abstract: OBJECTIVE
  To contribute to the knowledge of the cognitive differences existent between right-handed and left-handed evaluating the cognitive outcome in a group of adults right-handed and another group of left-handed of similar characteristic (age, gender, cultural level) by means of the Wechsler Adult Intelligence Scale (WAIS-III).
  
  
  METHODS
  Two groups were studied: one formed by 25 right-handed (RHG) and another formed by 25 left-handed (LHG). None of those subject of the study presented mental deficiency neither neurological dysfunctions. The age stocking was of 24.28 years, with a range between 20 and 28 years.
  
  
  RESULTS
  There are not differences in the intellectual quotient (verbal and performance), among the two groups. The LHG obtains worse results that the right-handed in speed of prosecution and in the subtests of arithmetic and key, while the RHG has obtained better results in the subtest of incomplete figures.
  
  
  CONCLUSIONS
  The LHG has a cognitive yield similar to that of the RHG, with slight deficiencies in activities of visoperceptual component. It becomes necessary to continue deepening in the neuropsychological and cognitive differences between right-handed and left-handed, since the cognitive outcome of the left-handed ones continues being a topic in discussion.
authors.affiliation: Departamento de Psicobiología, Facultad de Psicología, Universidad Complutense de Madrid, Pozuelo de Alarcón, Spain. japp@psi.ucm.es
authors.forename: J A
authors.initials: JA
authors.lastname: Portellano
authors.forename: S
authors.initials: S
authors.lastname: Torrijos
authors.forename: R
authors.initials: R
authors.lastname: Martínez-Arias
authors.forename: P
authors.initials: P
authors.lastname: Vale
mesh_terms: D000328:Adult; D001519:Behavior / Q000502:physiology*; D003071:Cognition / Q000502:physiology*; D005260:Female; D007839:Functional Laterality; D006801:Humans; D014888:Wechsler Scales