Masked Sentence Recognition in Children, Young Adults, and Older Adults: Age-Dependent Effects of Semantic Context and Masker Type

Emily Buss, Sarah E. Hodge, Lauren Calandruccio, Lori J. Leibold, John H. Grose

Research output: Contribution to journalArticle

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Abstract

OBJECTIVES: Masked speech recognition in normal-hearing listeners depends in part on masker type and semantic context of the target. Children and older adults are more susceptible to masking than young adults, particularly when the masker is speech. Semantic context has been shown to facilitate noise-masked sentence recognition in all age groups, but it is not known whether age affects a listener's ability to use context with a speech masker. The purpose of the present study was to evaluate the effect of masker type and semantic context of the target as a function of listener age. DESIGN: Listeners were children (5 to 16 years), young adults (19 to 30 years), and older adults (67 to 81 years), all with normal or near-normal hearing. Maskers were either speech-shaped noise or two-talker speech, and targets were either semantically correct (high context) sentences or semantically anomalous (low context) sentences. RESULTS: As predicted, speech reception thresholds were lower for young adults than either children or older adults. Age effects were larger for the two-talker masker than the speech-shaped noise masker, and the effect of masker type was larger in children than older adults. Performance tended to be better for targets with high than low semantic context, but this benefit depended on age group and masker type. In contrast to adults, children benefitted less from context in the two-talker speech masker than the speech-shaped noise masker. Context effects were small compared with differences across age and masker type. CONCLUSIONS: Different effects of masker type and target context are observed at different points across the lifespan. While the two-talker masker is particularly challenging for children and older adults, the speech masker may limit the use of semantic context in children but not adults.

Original languageEnglish (US)
Pages (from-to)1117-1126
Number of pages10
JournalEar and hearing
Volume40
Issue number5
DOIs
StatePublished - Sep 1 2019

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Semantics
Young Adult
Noise
Hearing
Age Groups
Aptitude

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Speech and Hearing

Cite this

Masked Sentence Recognition in Children, Young Adults, and Older Adults : Age-Dependent Effects of Semantic Context and Masker Type. / Buss, Emily; Hodge, Sarah E.; Calandruccio, Lauren; Leibold, Lori J.; Grose, John H.

In: Ear and hearing, Vol. 40, No. 5, 01.09.2019, p. 1117-1126.

Research output: Contribution to journalArticle

Buss, Emily ; Hodge, Sarah E. ; Calandruccio, Lauren ; Leibold, Lori J. ; Grose, John H. / Masked Sentence Recognition in Children, Young Adults, and Older Adults : Age-Dependent Effects of Semantic Context and Masker Type. In: Ear and hearing. 2019 ; Vol. 40, No. 5. pp. 1117-1126.
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abstract = "OBJECTIVES: Masked speech recognition in normal-hearing listeners depends in part on masker type and semantic context of the target. Children and older adults are more susceptible to masking than young adults, particularly when the masker is speech. Semantic context has been shown to facilitate noise-masked sentence recognition in all age groups, but it is not known whether age affects a listener's ability to use context with a speech masker. The purpose of the present study was to evaluate the effect of masker type and semantic context of the target as a function of listener age. DESIGN: Listeners were children (5 to 16 years), young adults (19 to 30 years), and older adults (67 to 81 years), all with normal or near-normal hearing. Maskers were either speech-shaped noise or two-talker speech, and targets were either semantically correct (high context) sentences or semantically anomalous (low context) sentences. RESULTS: As predicted, speech reception thresholds were lower for young adults than either children or older adults. Age effects were larger for the two-talker masker than the speech-shaped noise masker, and the effect of masker type was larger in children than older adults. Performance tended to be better for targets with high than low semantic context, but this benefit depended on age group and masker type. In contrast to adults, children benefitted less from context in the two-talker speech masker than the speech-shaped noise masker. Context effects were small compared with differences across age and masker type. CONCLUSIONS: Different effects of masker type and target context are observed at different points across the lifespan. While the two-talker masker is particularly challenging for children and older adults, the speech masker may limit the use of semantic context in children but not adults.",
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