Abstract：
:The goal of the current study was to characterize the normative features of wideband acoustic immittance in children for describing the functional maturation of the middle ear in 5 to 12-year-old children. Absorbance and group delay were measured in adults and three groups of children, 5-6, 7-9 and 10-12-year-olds, in a cross-sectional design. Absorbance showed significant effects of the age group in four out of ten center frequencies of one-half-octave bins from 211 to 6000 Hz, while there was no significant effect for group delay at any frequency. Older children (10-12 years) showed absorbance similar to adults. Test-retest reliability was high for absorbance for all age groups. However, group delay was modestly reliable only for adults. We conclude that the middle ear transmission follows a protracted period of maturation for high frequencies and reaches adult-like feature by 10-12 years of age.
journal_name
Hear Resjournal_title
Hearing researchauthors
Mishra SK,Dinger Z,Renken Ldoi
10.1016/j.heares.2016.10.029subject
Has Abstractpub_date
2017-02-01 00:00:00pages
62-67eissn
0378-5955issn
1878-5891pii
S0378-5955(16)30340-9journal_volume
344pub_type
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