title: Right cerebral hemisphere and central auditory processing in children with developmental dyslexia.
abstract: OBJECTIVE
  We hypothesized that if the right hemisphere auditory processing abilities can be altered in children with developmental dyslexia (DD), we can detect dysfunction using specific tests.
  
  
  METHODS
  We performed an analytical comparative cross-sectional study. We studied 20 right-handed children with DD and 20 healthy right-handed control subjects (CS). Children in both groups were age, gender, and school-grade matched. Focusing on the right hemisphere's contribution, we utilized tests to measure alterations in central auditory processing (CAP), such as determination of frequency patterns; sound duration; music pitch recognition; and identification of environmental sounds. We compared results among the two groups.
  
  
  RESULTS
  Children with DD showed lower performance than CS in all CAP subtests, including those that preferentially engaged the cerebral right hemisphere.
  
  
  CONCLUSIONS
  Our data suggests a significant contribution of the right hemisphere in alterations of CAP in children with DD. Thus, right hemisphere CAP must be considered for examination and rehabilitation of children with DD.
authors.affiliation: Department of Audiology and Communication Disorders, National Institute of Rehabilitation, México, Mexico City.
authors.forename: Paulina C
authors.initials: PC
authors.lastname: Murphy-Ruiz
authors.affiliation: Laboratory of Central Auditory Processes Alterations Research, National Institute of Rehabilitation, México, Mexico City.
authors.forename: Yolanda R
authors.initials: YR
authors.lastname: Peñaloza-López
authors.affiliation: School of Medicine, Department of Familial Medicine, UNAM, México, Mexico City.
authors.forename: Felipe
authors.initials: F
authors.lastname: García-Pedroza
authors.affiliation: Laboratory of Cognitive Neurophysiology, National Institute of Rehabilitation, México, Mexico City.
authors.forename: Adrián
authors.initials: A
authors.lastname: Poblano
mesh_terms: D001307:Auditory Perception; D016022:Case-Control Studies; D054022:Cerebrum / Q000503:physiopathology*; D002648:Child; D003430:Cross-Sectional Studies; D004410:Dyslexia / Q000503:physiopathology*; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D007805:Language Development Disorders / Q000503:physiopathology*; D007807:Language Tests; D008297:Male; D009146:Music; D009483:Neuropsychological Tests; D012016:Reference Values; D018709:Statistics, Nonparametric