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An investigation into the clinical utility of ipsilateral/contralateral asymmetries in bone-conduction auditory steady-state responses.
Int J Audiol. 2014 Sep; 53(9):604-12.IJ

Abstract

OBJECTIVE

To determine whether ipsilateral/contralateral asymmetries in the bone-conduction (BC) ASSR are robust enough in infants to be used clinically to isolate the test ear.

DESIGN

Retrospective investigation of three two-channel BC ASSR datasets.

SUBJECTS

Forty-eight adults (mean age 26.7 years), 49 infants (mean age 29.6 weeks).

METHODS

BC ASSR stimuli were presented as amplitude/frequency modulated sinusoidal tones with carrier frequencies of 500, 1000, 2000, and 4000 Hz (-10 to 45 dB HL).

RESULTS

Infants showed greater differences in ipsilateral/contralateral mean amplitudes and phase delays for all experimental conditions compared to adults. Ninety percent of infants had ipsilateral/contralateral asymmetries at 500 and 4000 Hz (20-35 dB HL) using an "amplitude or phase delay" criterion, and at 4000 Hz (20-25 dB HL) using an "amplitude and phase delay" criterion.

CONCLUSIONS

As ipsilateral/contralateral asymmetries are not consistently present for 1000- and 2000-Hz BC ASSRs in infants, clinical masking would be needed at these frequencies to isolate the test ear. For 500- and 4000-Hz BC ASSRs, the accuracy of using these asymmetries requires clinical confirmation in a group of infants with hearing loss.

Authors+Show Affiliations

School of Audiology & Speech Sciences, University of British Columbia , Vancouver , Canada.No affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24801532

Citation

Small, Susan A., and Alison Love. "An Investigation Into the Clinical Utility of Ipsilateral/contralateral Asymmetries in Bone-conduction Auditory Steady-state Responses." International Journal of Audiology, vol. 53, no. 9, 2014, pp. 604-12.
Small SA, Love A. An investigation into the clinical utility of ipsilateral/contralateral asymmetries in bone-conduction auditory steady-state responses. Int J Audiol. 2014;53(9):604-12.
Small, S. A., & Love, A. (2014). An investigation into the clinical utility of ipsilateral/contralateral asymmetries in bone-conduction auditory steady-state responses. International Journal of Audiology, 53(9), 604-12. https://doi.org/10.3109/14992027.2014.906752
Small SA, Love A. An Investigation Into the Clinical Utility of Ipsilateral/contralateral Asymmetries in Bone-conduction Auditory Steady-state Responses. Int J Audiol. 2014;53(9):604-12. PubMed PMID: 24801532.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - An investigation into the clinical utility of ipsilateral/contralateral asymmetries in bone-conduction auditory steady-state responses. AU - Small,Susan A, AU - Love,Alison, Y1 - 2014/05/06/ PY - 2014/5/8/entrez PY - 2014/5/8/pubmed PY - 2015/5/12/medline KW - Auditory steady-state response KW - bone-conduction ASSR KW - infant bone-conduction hearing KW - ipsilateral/contralateral asymmetry SP - 604 EP - 12 JF - International journal of audiology JO - Int J Audiol VL - 53 IS - 9 N2 - OBJECTIVE: To determine whether ipsilateral/contralateral asymmetries in the bone-conduction (BC) ASSR are robust enough in infants to be used clinically to isolate the test ear. DESIGN: Retrospective investigation of three two-channel BC ASSR datasets. SUBJECTS: Forty-eight adults (mean age 26.7 years), 49 infants (mean age 29.6 weeks). METHODS: BC ASSR stimuli were presented as amplitude/frequency modulated sinusoidal tones with carrier frequencies of 500, 1000, 2000, and 4000 Hz (-10 to 45 dB HL). RESULTS: Infants showed greater differences in ipsilateral/contralateral mean amplitudes and phase delays for all experimental conditions compared to adults. Ninety percent of infants had ipsilateral/contralateral asymmetries at 500 and 4000 Hz (20-35 dB HL) using an "amplitude or phase delay" criterion, and at 4000 Hz (20-25 dB HL) using an "amplitude and phase delay" criterion. CONCLUSIONS: As ipsilateral/contralateral asymmetries are not consistently present for 1000- and 2000-Hz BC ASSRs in infants, clinical masking would be needed at these frequencies to isolate the test ear. For 500- and 4000-Hz BC ASSRs, the accuracy of using these asymmetries requires clinical confirmation in a group of infants with hearing loss. SN - 1708-8186 UR - https://www.unboundmedicine.com/medline/citation/24801532/An_investigation_into_the_clinical_utility_of_ipsilateral/contralateral_asymmetries_in_bone_conduction_auditory_steady_state_responses_ L2 - https://www.tandfonline.com/doi/full/10.3109/14992027.2014.906752 DB - PRIME DP - Unbound Medicine ER -