The relationship between inexperienced listeners' perceptions and acoustic correlates of children's /r/ productions

Research output: Contribution to journalArticle

Abstract

This study examined inexperienced listeners' perceptions of children's naturally produced /r/ sounds with reference to levels of accuracy determined by consensus between two expert clinicians. Participants rated /r/ sounds as fully correct, distorted or incorrect/non-rhotic. Second and third formant heights were measured to explore the relationship between acoustic cues and perceptual judgments. Inexperienced listeners' agreement was greater for correct productions than for distorted or incorrect/non-rhotic productions. In addition, inexperienced listeners' differentiation of intermediate versus fully incorrect /r/ had lower sensitivity and specificity relative to an acoustically defined threshold than experienced listeners' classification. These findings are consistent with results of previous studies highlighting the difficulty in identifying gradations of correctness in misarticulated /r/, and they suggest that this ability may be influenced by clinical experience. Additionally, all listeners were noted to be more consistent in rating vocalic /r/ than consonantal /r/. Implications for clinician training and treatment planning are discussed.

Original languageEnglish (US)
Pages (from-to)628-645
Number of pages18
JournalClinical Linguistics and Phonetics
Volume26
Issue number7
DOIs
StatePublished - Jul 2012

Fingerprint

Acoustics
listener
acoustics
Aptitude
Cues
Consensus
Sensitivity and Specificity
rating
Listeners
Listener Perception
expert
Therapeutics
planning
ability
experience
Clinicians
Sound

Keywords

  • Consonantal /r/
  • Distortions
  • Student clinicians
  • Vocalic /r/

ASJC Scopus subject areas

  • Language and Linguistics
  • Medicine(all)
  • Linguistics and Language
  • Speech and Hearing

Cite this

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title = "The relationship between inexperienced listeners' perceptions and acoustic correlates of children's /r/ productions",
abstract = "This study examined inexperienced listeners' perceptions of children's naturally produced /r/ sounds with reference to levels of accuracy determined by consensus between two expert clinicians. Participants rated /r/ sounds as fully correct, distorted or incorrect/non-rhotic. Second and third formant heights were measured to explore the relationship between acoustic cues and perceptual judgments. Inexperienced listeners' agreement was greater for correct productions than for distorted or incorrect/non-rhotic productions. In addition, inexperienced listeners' differentiation of intermediate versus fully incorrect /r/ had lower sensitivity and specificity relative to an acoustically defined threshold than experienced listeners' classification. These findings are consistent with results of previous studies highlighting the difficulty in identifying gradations of correctness in misarticulated /r/, and they suggest that this ability may be influenced by clinical experience. Additionally, all listeners were noted to be more consistent in rating vocalic /r/ than consonantal /r/. Implications for clinician training and treatment planning are discussed.",
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