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Infants with hearing loss routinely receive hearing aids several months before reliable behavioral responses to amplified sound can be observed. This necessitates objective measures to validate hearing-aid fittings. A single report has demonstrated the use of ASSRs to determine aided thresholds in children but data in young infants is still lacking. The current study explored aided ASSR compared to unaided ASSR thresholds and subsequent behavioral thresholds in a group of six young infants with hearing loss who received hearing aids between three and six months of age. Aided ASSR thresholds were obtained in 83% of frequencies where aided behavioral thresholds were obtained, with a mean threshold difference of 13+/-13 dB. The aided ASSR-based threshold estimates were within 15 dB of behavioral thresholds in 63% of cases, indicating a moderate correlation (r = 0.55). Comparing aided and unaided ASSR measurements revealed an average functional gain of 36+/-15 dB. These results indicate that ASSRs can provide the first evidence of robust hearing aid benefit in young infants several months before behavioral responses are observed.
Deidré Stroebel, and
De Wet Swanepoel, and
Emily Groenewald
December 2004,
Ear and hearing,
Deidré Stroebel, and
De Wet Swanepoel, and
Emily Groenewald
October 1998,
Journal of the American Academy of Audiology,
Deidré Stroebel, and
De Wet Swanepoel, and
Emily Groenewald
March 2012,
Journal of the American Academy of Audiology,
Deidré Stroebel, and
De Wet Swanepoel, and
Emily Groenewald
January 2011,
Ear and hearing,
Deidré Stroebel, and
De Wet Swanepoel, and
Emily Groenewald
May 2005,
Journal of the American Academy of Audiology,
Deidré Stroebel, and
De Wet Swanepoel, and
Emily Groenewald
April 2005,
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Deidré Stroebel, and
De Wet Swanepoel, and
Emily Groenewald
January 2009,
Journal of the American Academy of Audiology,
Deidré Stroebel, and
De Wet Swanepoel, and
Emily Groenewald
January 1988,
Electroencephalography and clinical neurophysiology,
Deidré Stroebel, and
De Wet Swanepoel, and
Emily Groenewald
May 2002,
The Annals of otology, rhinology & laryngology. Supplement,
Deidré Stroebel, and
De Wet Swanepoel, and
Emily Groenewald
June 2003,
International journal of audiology,
