Vocalizations of infants with hearing loss compared with infants with normal hearing: Part I - Phonetic development

Mary Pat Moeller, Brenda Hoover, Coille Putman, Katie Arbataitis, Greta Bohnenkamp, Barbara Peterson, Sharon Wood, Dawna Lewis, Andrea Pittman, Pat Stelmachowicz

    Research output: Contribution to journalArticle

    118 Citations (Scopus)

    Abstract

    OBJECTIVE: Infants with hearing loss are known to be slower to develop spoken vocabulary than peers with normal hearing. Previous research demonstrates that they differ from normal-hearing children in several aspects of prelinguistic vocal development. Less is known about the vocalizations of early-identified infants with access to current hearing technologies. This longitudinal study documents changes in prelinguistic vocalizations in early-identified infants with varying degrees of hearing loss, compared with a group of infants with normal hearing. It was hypothesized that infants with hearing loss would demonstrate phonetic delays and that selected aspects of phonetic learning may be differentially affected by restricted auditory access. DESIGN: The vocalizations and early verbalizations of 21 infants with normal hearing and 12 early-identified infants with hearing loss were compared over a period of 14 mo (from 10 to 24 mo of age). Thirty-minute mother-child interaction sessions were video recorded at 6- to 8-wk intervals in a laboratory playroom setting. Syllable complexity changes and consonantal development were quantified from vocalizations and early verbalizations. Early behaviors were related to speech production measures at 36 mo of age. Participants with hearing loss were recruited from local audiology clinics and early intervention programs. Participants with normal hearing were recruited through day care centers and pediatrician offices. RESULTS: Relative to age-matched, normal-hearing peers, children with hearing loss were delayed in the onset of consistent canonical babble. However, certain children with moderately-severe losses babbled on time, and infants with cochlear implants babbled within 2 to 6 mo of implantation. The infants with hearing loss had smaller consonantal inventories and were slower to increase syllable shape complexity than age-matched normal-hearing peers. The overall pattern of results suggested that consonant development in infants with hearing loss was delayed but not qualitatively different from children with normal hearing. Delays appeared to be less pronounced than suggested by previous research. However, fricative/affricate development progressed slowly in infants with hearing loss and divergence from the patterns of normal-hearing children was observed. Six children (2 with normal hearing; 4 with hearing loss) were identified as atypical, based on their rates of development. At 24 mo of age, these children persisted in producing a high proportion (0.59) of vocalizations lacking consonants, which was negatively correlated with Goldman-Fristoe scores at 36 mo (r = -0.60). CONCLUSIONS: Results suggest that early-identified children are delayed in consonant and syllable structure development, which may influence early word learning rates. Fricative/affricate development appears to be challenging for some infants with hearing loss. This may be related to the effects of sensorineural hearing loss on high-frequency information, restricted bandwidth provided by amplification, and reduced audibility in contexts of noise and reverberation. Delayed fricative use may have implications for morphological development. Atypically slow rates of change in syllable development may indicate that a child is at risk for delayed speech development.

    Original languageEnglish (US)
    Pages (from-to)605-627
    Number of pages23
    JournalEar and Hearing
    Volume28
    Issue number5
    DOIs
    StatePublished - Sep 2007

    Fingerprint

    Phonetics
    Hearing Loss
    Hearing
    Learning
    Audiology
    Mother-Child Relations
    Cochlear Implants
    Vocabulary
    Sensorineural Hearing Loss
    Child Development
    Research
    Longitudinal Studies
    Noise
    Technology

    ASJC Scopus subject areas

    • Otorhinolaryngology

    Cite this

    Moeller, M. P., Hoover, B., Putman, C., Arbataitis, K., Bohnenkamp, G., Peterson, B., ... Stelmachowicz, P. (2007). Vocalizations of infants with hearing loss compared with infants with normal hearing: Part I - Phonetic development. Ear and Hearing, 28(5), 605-627. https://doi.org/10.1097/AUD.0b013e31812564ab

    Vocalizations of infants with hearing loss compared with infants with normal hearing : Part I - Phonetic development. / Moeller, Mary Pat; Hoover, Brenda; Putman, Coille; Arbataitis, Katie; Bohnenkamp, Greta; Peterson, Barbara; Wood, Sharon; Lewis, Dawna; Pittman, Andrea; Stelmachowicz, Pat.

    In: Ear and Hearing, Vol. 28, No. 5, 09.2007, p. 605-627.

    Research output: Contribution to journalArticle

    Moeller, MP, Hoover, B, Putman, C, Arbataitis, K, Bohnenkamp, G, Peterson, B, Wood, S, Lewis, D, Pittman, A & Stelmachowicz, P 2007, 'Vocalizations of infants with hearing loss compared with infants with normal hearing: Part I - Phonetic development', Ear and Hearing, vol. 28, no. 5, pp. 605-627. https://doi.org/10.1097/AUD.0b013e31812564ab
    Moeller, Mary Pat ; Hoover, Brenda ; Putman, Coille ; Arbataitis, Katie ; Bohnenkamp, Greta ; Peterson, Barbara ; Wood, Sharon ; Lewis, Dawna ; Pittman, Andrea ; Stelmachowicz, Pat. / Vocalizations of infants with hearing loss compared with infants with normal hearing : Part I - Phonetic development. In: Ear and Hearing. 2007 ; Vol. 28, No. 5. pp. 605-627.
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    N2 - OBJECTIVE: Infants with hearing loss are known to be slower to develop spoken vocabulary than peers with normal hearing. Previous research demonstrates that they differ from normal-hearing children in several aspects of prelinguistic vocal development. Less is known about the vocalizations of early-identified infants with access to current hearing technologies. This longitudinal study documents changes in prelinguistic vocalizations in early-identified infants with varying degrees of hearing loss, compared with a group of infants with normal hearing. It was hypothesized that infants with hearing loss would demonstrate phonetic delays and that selected aspects of phonetic learning may be differentially affected by restricted auditory access. DESIGN: The vocalizations and early verbalizations of 21 infants with normal hearing and 12 early-identified infants with hearing loss were compared over a period of 14 mo (from 10 to 24 mo of age). Thirty-minute mother-child interaction sessions were video recorded at 6- to 8-wk intervals in a laboratory playroom setting. Syllable complexity changes and consonantal development were quantified from vocalizations and early verbalizations. Early behaviors were related to speech production measures at 36 mo of age. Participants with hearing loss were recruited from local audiology clinics and early intervention programs. Participants with normal hearing were recruited through day care centers and pediatrician offices. RESULTS: Relative to age-matched, normal-hearing peers, children with hearing loss were delayed in the onset of consistent canonical babble. However, certain children with moderately-severe losses babbled on time, and infants with cochlear implants babbled within 2 to 6 mo of implantation. The infants with hearing loss had smaller consonantal inventories and were slower to increase syllable shape complexity than age-matched normal-hearing peers. The overall pattern of results suggested that consonant development in infants with hearing loss was delayed but not qualitatively different from children with normal hearing. Delays appeared to be less pronounced than suggested by previous research. However, fricative/affricate development progressed slowly in infants with hearing loss and divergence from the patterns of normal-hearing children was observed. Six children (2 with normal hearing; 4 with hearing loss) were identified as atypical, based on their rates of development. At 24 mo of age, these children persisted in producing a high proportion (0.59) of vocalizations lacking consonants, which was negatively correlated with Goldman-Fristoe scores at 36 mo (r = -0.60). CONCLUSIONS: Results suggest that early-identified children are delayed in consonant and syllable structure development, which may influence early word learning rates. Fricative/affricate development appears to be challenging for some infants with hearing loss. This may be related to the effects of sensorineural hearing loss on high-frequency information, restricted bandwidth provided by amplification, and reduced audibility in contexts of noise and reverberation. Delayed fricative use may have implications for morphological development. Atypically slow rates of change in syllable development may indicate that a child is at risk for delayed speech development.

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