title: The relationship between cortical auditory evoked potential (CAEP) detection and estimated audibility in infants with sensorineural hearing loss.
abstract: OBJECTIVE
  To determine the effectiveness of objective statistical detection in CAEP testing to evaluate audibility in young infants with sensorineural hearing loss.
  
  
  METHODS
  CAEP recordings to speech-based stimuli were made at three presentation levels (55, 65, or 75 dB SPL) when a group of hearing-impaired infants were either aided or unaided. Later-obtained behavioral audiograms were used as the gold standard against which to evaluate the accuracy of the automatic detection of the presence/absence of CAEP responses.
  
  
  METHODS
  Participants were 18 infants with confirmed sensorineural hearing loss.
  
  
  RESULTS
  Higher sensation levels led to a greater number of present CAEP responses being detected. More CAEP waveforms were detected in the aided condition than in the unaided condition.
  
  
  CONCLUSIONS
  Our results suggest that the presence/absence of CAEP responses defined by the automatic statistical criterion was effective in showing whether increased sensation levels provided by amplification were sufficient to reach the cortex. This was clearly apparent from the significant increase in cortical detections when comparing unaided with aided testing.
authors.affiliation: Hearing and Speech Engineering Laboratory, Institute of Biomedical Engineering, National Yang-Ming University, Taipei, Taiwan.
authors.forename: Hsiu-Wen
authors.initials: HW
authors.lastname: Chang
authors.forename: Harvey
authors.initials: H
authors.lastname: Dillon
authors.forename: Lyndal
authors.initials: L
authors.lastname: Carter
authors.forename: Bram
authors.initials: B
authors.lastname: van Dun
authors.forename: Shuenn-Tsong
authors.initials: ST
authors.lastname: Young
mesh_terms: D000161:Acoustic Stimulation; D001302:Audiometry, Speech; D001309:Auditory Threshold; D002540:Cerebral Cortex / Q000503:physiopathology*; D012048:Correction of Hearing Impairment; D004569:Electroencephalography; D005072:Evoked Potentials, Auditory; D005260:Female; D006310:Hearing Aids; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis* / Q000503:physiopathology / Q000523:psychology / Q000534:rehabilitation; D006801:Humans; D007223:Infant; D008297:Male; D015233:Models, Statistical; D009517:New South Wales; D019986:Persons with Hearing Disabilities / Q000523:psychology / Q000534:rehabilitation; D011237:Predictive Value of Tests; D011571:Psychoacoustics; D013018:Sound Spectrography; D013061:Speech Acoustics; D013067:Speech Perception