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The relationship of audibility and t...

Bass-Ringdahl, Sandie Michelle.

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The relationship of audibility and the development of canonical babbling in young children with hearing impairment.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The relationship of audibility and the development of canonical babbling in young children with hearing impairment./
作者:	Bass-Ringdahl, Sandie Michelle.
面頁冊數:	113 p.
附註:	Source: Dissertation Abstracts International, Volume: 63-07, Section: B, page: 3211.
Contained By:	Dissertation Abstracts International63-07B.
標題:	Health Sciences, Audiology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3058384
ISBN:	0493737839

The relationship of audibility and the development of canonical babbling in young children with hearing impairment.
Bass-Ringdahl, Sandie Michelle.

The relationship of audibility and the development of canonical babbling in young children with hearing impairment. - 113 p.

Source: Dissertation Abstracts International, Volume: 63-07, Section: B, page: 3211.

Thesis (Ph.D.)--The University of Iowa, 2002.

The issue regarding hearing aid benefit is especially important to parents of children with severe-profound hearing impairment who may benefit from a cochlear implant. Benefit from amplification is difficult to demonstrate in children too young to complete direct measures of speech and language. The study of infant vocalizations, prior to first words, may assist in establishing whether a child is benefiting enough from hearing aid use for spoken language development. The link between audibility of speech and infant vocal development has not been demonstrated when audibility was known. The purpose of the present study was to investigate the relationship between age at onset of canonical babbling and audibility of amplified speech in infants and toddlers with hearing impairment. Thirteen children with severe-profound hearing impairment and 2 children with normal hearing were recruited. Longitudinal vocalization recordings were obtained and coded. Audibility during hearing aid and cochlear implant use was calculated using the Speech Intelligibility Index (SII) with various Long Term Average Speech Spectra (LTASS) to best represent the young child's language learning environment. Criterion for audibility was met either when a child received an SII ≥ 0.34 during hearing aid use or at the time of initial stimulation of the cochlear implant. Hearing age began at the time audibility criterion was met. Onset of canonical babble was defined as a canonical syllable ratio (CSR) ≥ 0.2. Acoustic analysis was used as an aid in determining if a child met specific acoustic criteria for canonical babble. Ten of the 13 participants with hearing impairment began canonical babble within 9 months hearing age. Seven of the 10 began canonical babble prior to 7 months hearing age. Earlier ages of canonical babble onset were related to greater audibility of the speech signal during hearing aid use. It was found that degree of audibility and listening experience determined onset of canonical babble. All children with hearing impairment followed patterns of vocal development typical of children with normal hearing when hearing age was taken into account. Implications for clinical management and treatment decision-making are discussed.

ISBN: 0493737839Subjects--Topical Terms:

1018138
Health Sciences, Audiology.

The relationship of audibility and the development of canonical babbling in young children with hearing impairment.
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