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The Effect of Noise on Speech Intell...

Durr, Holly.

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The Effect of Noise on Speech Intelligibility and Perceived Listening Effort for Speakers with Head and Neck Cancer.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The Effect of Noise on Speech Intelligibility and Perceived Listening Effort for Speakers with Head and Neck Cancer./
作者:	Durr, Holly.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
面頁冊數:	47 p.
附註:	Source: Masters Abstracts International, Volume: 81-05.
Contained By:	Masters Abstracts International81-05.
標題:	Speech therapy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=22618833
ISBN:	9781687955142

The Effect of Noise on Speech Intelligibility and Perceived Listening Effort for Speakers with Head and Neck Cancer.
Durr, Holly.

The Effect of Noise on Speech Intelligibility and Perceived Listening Effort for Speakers with Head and Neck Cancer. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 47 p.

Source: Masters Abstracts International, Volume: 81-05.

Thesis (Master's)--University of Washington, 2019.

This item must not be sold to any third party vendors.

Purpose: Patients treated for head and neck cancer (HNC) often experience significant difficulties in verbal communication, which may lead to reduced quality of life (Dwivedi et al., 2009). The purpose of this study was to determine the effect of different levels of background noise on a) speech intelligibility and b) perceived listening effort in speakers treated for HNC (excluding laryngeal cancer) with intact or impaired speech. This study also sought to identify the relative contribution of background noise, speech intelligibility, and speaker severity on perceived listening effort.Methods: 10 speakers treated for nasal, oral, or oropharyngeal cancer were: a) 100% intelligible in quiet and did not exhibit any imprecise phonemes (n=5; speakers with intact speech); or, b) 100% intelligible in quiet, but exhibited imprecise phonemes (n=5; speakers with impaired speech). Six sentences of increasing length from each speaker were included to assess speech intelligibility and perceived listening effort (Speech Intelligibility Test; Yorkston et al., 1996). 30 inexperienced listeners participated by listening to these sentences under 3 noise conditions: quiet, +7 dB SNR, and +5 dB SNR. For each sentence, listeners completed two tasks: (1) transcription; and (2) a rating of perceived listening effort. Results: All speakers exhibited worse speech intelligibility and increased demands on perceived listening effort with increased background noise. There was a significant interaction between speaker group and noise. While there was a stronger effect for imprecise speakers (significant differences from one noise condition to the next), control speakers appeared to plateau from +7 dB SNR to + 5 dB SNR. Noise, speech intelligibility, and speaker severity predicted 59% of the variance in perceived listening effort ratings.Conclusions: Speakers with mild speech impairment experienced greater deficits in the two levels of noise than control speakers with intact speech, above and beyond what might be expected from noise alone. This study highlights the vulnerability of those with mild communication disorders secondary to HNC in these relatively low levels of background noise. Listeners tolerated increased background noise for control speakers but not speakers with imprecise speech. Given that many speakers may present as intelligible but face significant penalties in the presence of noise, measures in quiet do not appear to capture the barriers these patients face. Assessment, education, counseling, and treatment that is informed by functional contexts (including background noise) would be beneficial for these patients.

ISBN: 9781687955142Subjects--Topical Terms:

520446
Speech therapy.
Subjects--Index Terms:

background noise

The Effect of Noise on Speech Intelligibility and Perceived Listening Effort for Speakers with Head and Neck Cancer.
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