Objective analysis of early auditory responses elicited by gaps in noise

Khalid Alhussaini, Jorge Bohorquez, Fred Holt, Ozcan Ozdamar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


Behavioral detection of gaps in noise (GIN) is commonly used to evaluate auditory temporal resolution. Late latency responses (LLRs) to such stimuli are studied as electrophysiological measures of temporal resolution. The current study was conducted to investigate the characteristics of auditory brainstem and middle latency responses (ABRs/MLRs) elicited by GIN. Additionally, Quasi Auditory Steady State Responses (QASSRs) were quantified to obtain an Objective Gap Detection Threshold (OGDT). Six young, normal hearing subjects were monaurally stimulated using silent gaps (durations 0ms-12ms) embedded in a white-noise signal. QASSRs were deconvolved using the CLAD (Continuous Loop Averaging Deconvolution) algorithm to obtain an estimate of the transient responses to individual gaps. Derived ABRs/MLRs were consistently characterized by three positive waves and three negative waves that diminished with decreasing gap duration. Early auditory evoked responses (ABR/MLR) to GINs were reliably recorded and computed OGDTs yielded results that are consistent with behavioral tests. This methodology may be applied to objectively diagnose patients with auditory disorders related with temporal resolution deficiencies.

Original languageEnglish (US)
Title of host publicationIEEE SoutheastCon 2015 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467373005
StatePublished - Jun 24 2015
EventIEEE SoutheastCon 2015 - Fort Lauderdale, United States
Duration: Apr 9 2015Apr 12 2015

Publication series

NameConference Proceedings - IEEE SOUTHEASTCON
ISSN (Print)0734-7502


OtherIEEE SoutheastCon 2015
Country/TerritoryUnited States
CityFort Lauderdale


  • Auditory evoked responses
  • Gap detection threshold
  • Gap in noise
  • Objective detection
  • Temporal resolution

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Software
  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Signal Processing


Dive into the research topics of 'Objective analysis of early auditory responses elicited by gaps in noise'. Together they form a unique fingerprint.

Cite this