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undergraduate thesis: The role of CDS : an acoustic and perceptual examination of child-directed and adult-directed Cantonese tone production
Title | The role of CDS : an acoustic and perceptual examination of child-directed and adult-directed Cantonese tone production |
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Authors | |
Issue Date | 2017 |
Publisher | The University of Hong Kong (Pokfulam, Hong Kong) |
Citation | Ng, K. W. [吳穎森]. (2017). The role of CDS : an acoustic and perceptual examination of child-directed and adult-directed Cantonese tone production. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. |
Abstract | The role of child-directed speech has been debated for over decades. Two hypotheses – the Didactic Hypothesis and the Affect Hypothesis – have been proposed to explain the speech characteristics found in child-directed speech. This study aimed to test these two hypotheses using perceptual and acoustic analyses of mothers’ child-directed and adult-directed Cantonese tone productions. Mothers of the sixty-two Cantonese-speaking children aged one to five years produced 36 familiar and unfamiliar words in isolation and in sentence-final position to their children and to an adult. No significant difference was found in perceptual accuracy between adult-directed and child-directed speech. Acoustic analyses revealed that child-directed speech were produced with significant higher pitch and longer duration than adult-directed speech. No systematic acoustic differences were found in the contrastive cues between easily confusing tone pairs. Both perceptual and acoustic characteristics of sentence-final prosodic effect appeared to mirror the patterns observed in child-directed speech. The findings indicated that the acoustic differences in child-directed tone did not enhance the tone contrasts among the tones and, therefore, rejected the hypothesis that pitch modifications in child-directed tones were used for didactic purposes. Affect Hypothesis was suggested as an alternative.
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Degree | Bachelor of Science in Speech and Hearing Sciences |
Subject | Language acquisition - Parent participation Cantonese dialects - Acquisition Children - Language |
Dept/Program | Speech and Hearing Sciences |
Persistent Identifier | http://hdl.handle.net/10722/272647 |
DC Field | Value | Language |
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dc.contributor.author | Ng, Kelly, Wing-sum | - |
dc.contributor.author | 吳穎森 | - |
dc.date.accessioned | 2019-08-01T13:51:54Z | - |
dc.date.available | 2019-08-01T13:51:54Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | Ng, K. W. [吳穎森]. (2017). The role of CDS : an acoustic and perceptual examination of child-directed and adult-directed Cantonese tone production. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. | - |
dc.identifier.uri | http://hdl.handle.net/10722/272647 | - |
dc.description.abstract | The role of child-directed speech has been debated for over decades. Two hypotheses – the Didactic Hypothesis and the Affect Hypothesis – have been proposed to explain the speech characteristics found in child-directed speech. This study aimed to test these two hypotheses using perceptual and acoustic analyses of mothers’ child-directed and adult-directed Cantonese tone productions. Mothers of the sixty-two Cantonese-speaking children aged one to five years produced 36 familiar and unfamiliar words in isolation and in sentence-final position to their children and to an adult. No significant difference was found in perceptual accuracy between adult-directed and child-directed speech. Acoustic analyses revealed that child-directed speech were produced with significant higher pitch and longer duration than adult-directed speech. No systematic acoustic differences were found in the contrastive cues between easily confusing tone pairs. Both perceptual and acoustic characteristics of sentence-final prosodic effect appeared to mirror the patterns observed in child-directed speech. The findings indicated that the acoustic differences in child-directed tone did not enhance the tone contrasts among the tones and, therefore, rejected the hypothesis that pitch modifications in child-directed tones were used for didactic purposes. Affect Hypothesis was suggested as an alternative. | - |
dc.language | eng | - |
dc.publisher | The University of Hong Kong (Pokfulam, Hong Kong) | - |
dc.rights | The author retains all proprietary rights, (such as patent rights) and the right to use in future works. | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject.lcsh | Language acquisition - Parent participation | - |
dc.subject.lcsh | Cantonese dialects - Acquisition | - |
dc.subject.lcsh | Children - Language | - |
dc.title | The role of CDS : an acoustic and perceptual examination of child-directed and adult-directed Cantonese tone production | - |
dc.type | UG_Thesis | - |
dc.description.thesisname | Bachelor of Science in Speech and Hearing Sciences | - |
dc.description.thesislevel | Bachelor | - |
dc.description.thesisdiscipline | Speech and Hearing Sciences | - |
dc.description.nature | published_or_final_version | - |
dc.date.hkucongregation | 2017 | - |
dc.identifier.mmsid | 991044112078803414 | - |