title: Effects of vowel auditory training on concurrent speech segregation in hearing impaired children.
abstract: OBJECTIVE
  This clinical trial investigated the ability of concurrent speech segregation in hearing impaired children. The auditory behavioral responses and auditory late responses (ALRs) were compared between test and control groups prior to vowel auditory training and after 3 and 6 months of vowel auditory training to find the effects of bottom-up training on concurrent speech segregation in hearing impaired children.
  
  
  METHODS
  Auditory behavioral responses for 5 vowels and ALRs for double synthetic vowels, with special physical properties, were recorded in a timetable in 30 hearing impaired children (test group = 15 and control group = 15).
  
  
  RESULTS
  Identification score and reaction time data showed that the test group was approximately proficient for some vowels (P < .05 for vowels /æ/, /e/, and /u:/) and took less time to process after 6 months of training. N1-P2 amplitude indexing of the vowel change detection and reflecting central auditory speech representation without active client participation has been increased in the test group (P < .05).
  
  
  CONCLUSIONS
  The present study showed training-related improvements in concurrent speech segregation. This information provided evidence for bottom-up training based on F0, its differences in auditory scene analysis, and neural underpinnings.
authors: Department of Audiology, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
authors: Hossein
authors: H
authors: Talebi
authors: Department of Audiology, Iran University of Medical Sciences, Tehran, Iran amoossavi@gmail.com.
authors: Abdollah
authors: A
authors: Moossavi
authors: Department of Audiology, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
authors: Yones
authors: Y
authors: Lotfi
authors: Department of Social Medicine, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran.
authors: Soghrat
authors: S
authors: Faghihzadeh
mesh_terms: D001309:Auditory Threshold / Q000502:physiology*; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D012048:Correction of Hearing Impairment; D005071:Evoked Potentials / Q000502:physiology; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000503:physiopathology / Q000523:psychology / Q000534:rehabilitation*; D006801:Humans; D008297:Male; D010700:Phonetics; D011930:Reaction Time / Q000502:physiology; D013061:Speech Acoustics; D013067:Speech Perception / Q000502:physiology*
keywords: ASA; auditory scene analysis; concurrent speech segregation; hearing impaired children; vowel auditory training