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Eye tracking for establishing hearing thresholds in infants - evaluation of a new methodology
Karolinska University Hospital. (Department of Audiology and Vestibular Disorders)
Karolinska University Hospital. (Department of Audiology and Vestibular Disorders)
Stockholm University, Faculty of Humanities, Department of Linguistics, Phonetics. (Joller)ORCID iD: 0000-0002-8036-516X
Stockholm University, Faculty of Humanities, Department of Linguistics, Phonetics. (Jollergruppen)ORCID iD: 0000-0002-7980-3601
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2010 (English)Conference paper, Oral presentation only (Other academic)
Abstract [en]

Hearing test in small children is a challenge during the first 1-2 years and in children with other disabilities even longer. With neonatal hearing screening hearing aids can be fitted as early as two months of age. Programming of the hearing aid then has to be based on ABR thresholds until the child is old enough to give a distinct behavioral response, typically at 4-6 months. However, ABR is not frequency specific and it requires a quite or sleeping child. Visual reinforcement audiometry (VRA). is based upon the head-turn paradigm and involves that the infant builds up an association between the presence of a sound stimulus and a reward display. This behavioral observation test suffers from poor reliability, lengthy test times across several sessions, heavy experimenter bias, and interpretative ambiguity of the broad variety of possible infant responses.

This presentation describes a new method to objectively, automatically and adaptively determine reactions to sound stimuli. With an eye tracker and a computer based set-up the infants response, in anticipation towards a reward at the noted presence of an auditory stimulus (similar to VRA), can be registered, using eye movements instead of head turns. High test reliability and experimenter independence are achieved by the program´s automatic detection of infant response and adaptation of the next stimulus level. Result objectivity is improved by increasing the number of test trials for each frequency and hearing level, as well as by providing a significance level for each tested frequency depending on the number of trials.

Place, publisher, year, edition, pages
2010.
National Category
Pediatrics
Research subject
medicinsk beteendevetenskap
Identifiers
URN: urn:nbn:se:su:diva-82759OAI: oai:DiVA.org:su-82759DiVA: diva2:571878
Conference
Beyond Newborn Hearing Screening Conference, Cernobbio, Italy
Projects
Development of an adaptive hearing threshold test for infants using eye-tracking, collaboration between Karolinska Sjukhuset and Department of Linguistics
Funder
Vinnova, Vinnverifiering
Available from: 2012-11-26 Created: 2012-11-26 Last updated: 2014-04-29Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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