title: Temporal processing and long-latency auditory evoked potential in stutterers.
abstract: BACKGROUND
  Stuttering is a speech fluency disorder, and may be associated with neuroaudiological factors linked to central auditory processing, including changes in auditory processing skills and temporal resolution.
  
  
  OBJECTIVE
  To characterize the temporal processing and long-latency auditory evoked potential in stutterers and to compare them with non-stutterers.
  
  
  METHODS
  The study included 41 right-handed subjects, aged 18-46 years, divided into two groups: stutterers (n=20) and non-stutters (n=21), compared according to age, education, and sex. All subjects were submitted to the duration pattern tests, random gap detection test, and long-latency auditory evoked potential.
  
  
  RESULTS
  Individuals who stutter showed poorer performance on Duration Pattern and Random Gap Detection tests when compared with fluent individuals. In the long-latency auditory evoked potential, there was a difference in the latency of N2 and P3 components; stutterers had higher latency values.
  
  
  CONCLUSIONS
  Stutterers have poor performance in temporal processing and higher latency values for N2 and P3 components.
authors.affiliation: Universidade Federal de São Paulo (UNIFESP), Departamento de Fonoaudiologia, São Paulo, SP, Brazil. Electronic address: raquelprestesfono@yahoo.com.br.
authors.forename: Raquel
authors.initials: R
authors.lastname: Prestes
authors.affiliation: Universidade Federal de São Paulo (UNIFESP), Departamento de Fonoaudiologia, São Paulo, SP, Brazil.
authors.forename: Adriana Neves
authors.initials: AN
authors.lastname: de Andrade
authors.affiliation: Universidade Federal de São Paulo (UNIFESP), Departamento de Fonoaudiologia, São Paulo, SP, Brazil.
authors.forename: Renata Beatriz Fernandes
authors.initials: RB
authors.lastname: Santos
authors.affiliation: Universidade Federal de São Paulo (UNIFESP), Departamento de Fonoaudiologia, São Paulo, SP, Brazil.
authors.forename: Andrea Tortosa
authors.initials: AT
authors.lastname: Marangoni
authors.affiliation: Universidade Federal de São Paulo (UNIFESP), Departamento de Fonoaudiologia, São Paulo, SP, Brazil.
authors.forename: Ana Maria
authors.initials: AM
authors.lastname: Schiefer
authors.affiliation: Universidade Federal de São Paulo (UNIFESP), Departamento de Fonoaudiologia, São Paulo, SP, Brazil.
authors.forename: Daniela
authors.initials: D
authors.lastname: Gil
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods; D000293:Adolescent; D000328:Adult; D001307:Auditory Perception / Q000502:physiology*; D004522:Educational Status; D018913:Event-Related Potentials, P300 / Q000502:physiology*; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011930:Reaction Time / Q000502:physiology; D013342:Stuttering / Q000503:physiopathology*; D055815:Young Adult
keywords: Auditory evoked potential; Auditory processing disorder; Distúrbio do processamento auditivo; Gagueira adulta; Potencial evocado auditivo; Stuttering adult