title: Measuring Temporal Resolution (Release of Masking) with a Hughson-Westlake Up-Down Instead of a Békèsy-Tracking Procedure.
abstract: BACKGROUND
  A temporal resolution test in addition to the pure-tone audiogram may be of great clinical interest because of its relevance in speech perception and expected relevance in hearing aid fitting. Larsby and Arlinger developed an appropriate clinical test, but this test uses a Békèsy-tracking procedure for estimating masked thresholds in stationary and interrupted noise to assess release of masking (RoM) for temporal resolution. Generally the Hughson-Westlake up-down procedure is used in the clinic to measure the pure-tone thresholds in quiet. A uniform approach will facilitate clinical application and might be appropriate for RoM measurements as well. Because there is no golden standard for measuring the RoM in the clinic, we examine in the present study the Hughson-Westlake up-down procedure to measure the RoM and compare the results with the Békèsy-tracking procedure.
  
  
  OBJECTIVE
  The purpose of the current study was to examine the differences between a Békèsy-tracking procedure and the Hughson-Westlake up-down procedure for estimating masked thresholds in stationary and interrupted noise to assess RoM.
  
  
  METHODS
  RoM is assessed in eight normal-hearing (NH) and ten hearing-impaired (HI) listeners through both methods. Results from both methods are compared with each other and with predicted thresholds from a model.
  
  
  METHODS
  Wilcoxon signed-rank tests, paired t tests.
  
  
  RESULTS
  Some differences between the two methods were found. We used a model to quantify the results of the two measurement procedures. The results of the Hughson-Westlake procedure were clearly better in agreement with the model than the results of the Békèsy-tracking procedure. Furthermore, the Békèsy-tracking procedure showed more spread in the results of the NH listeners than the Hughson-Westlake procedure.
  
  
  CONCLUSIONS
  The Hughson-Westlake procedure seems to be an applicable alternative for measuring RoM for temporal resolution in the clinical audiological practice.
authors.affiliation: Department of Clinical and Experimental Audiology, Academic Medical Center Amsterdam, the Netherlands.|Department of Otorhinolaryngology and Head & Neck Surgery; Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands.
authors.forename: Koenraad S
authors.initials: KS
authors.lastname: Rhebergen
authors.affiliation: Department of Clinical and Experimental Audiology, Academic Medical Center Amsterdam, the Netherlands.
authors.forename: Thamar E M
authors.initials: TE
authors.lastname: van Esch
authors.affiliation: Department of Clinical and Experimental Audiology, Academic Medical Center Amsterdam, the Netherlands.
authors.forename: Wouter A
authors.initials: WA
authors.lastname: Dreschler
mesh_terms: D000328:Adult; D000368:Aged; D001299:Audiometry; D001309:Auditory Threshold / Q000502:physiology; D016022:Case-Control Studies; D006310:Hearing Aids; D034381:Hearing Loss / Q000175:diagnosis / Q000503:physiopathology* / Q000628:therapy; D006801:Humans; D008875:Middle Aged; D009426:Netherlands; D009622:Noise; D010470:Perceptual Masking / Q000502:physiology*; D013067:Speech Perception / Q000502:physiology*; D055815:Young Adult