Influence of Lack of Auditory Feedback on the Synchronization between Preverbal Vocal Behaviors and Motor ctions: Deaf and Hearing-Infants Compaired

Ejiri, Keiko

doi:10.5926/jjep1953.47.1_1

Cited by 12 publications

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“…rapping on the surface of the table etc.). In addition, Ejiri (1999) reported, in her longitudinal study of a deaf infant and hearing infants, that although co-occurrence of vocalizations and rhythmic hand actions was observed almost in the same period in both groups, the frequency of co-occurrences was much less in the deaf infant compared with the hearing infants. Taken together, these findings of the two studies suggest that what may promote cooccurrence of vocalizations and rhythmic actions is not the auditory feedback of rhythmic hand action but that of co-occurring vocalizations, which have the auditory features of mature syllables.…”

Section: Discussionmentioning

confidence: 96%

Co‐occurences of preverbal vocal behavior and motor action in early infancy

Ejiri

Masataka

2001

Developmental Science

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This study reports on co-occurrence of vocal behaviors and motor actions in infants in the prelinguistic stage. Four Japanese infants were studied longitudinally from the age of 6 months to 11 months. For all the infants, a 40 min sample was coded for each monthly period. The vocalizations produced by the infants co-occurred with their rhythmic actions with high frequency, particularly in the period preceding the onset of canonical babbling. Acoustical analysis was conducted on the vocalizations recorded before and after the period when co-occurrence took place most frequently. Among the vocalizations recorded in the period when co-occurrence appeared most frequently, those that co-occurred with rhythmic action had significantly shorter syllable duration and shorter formant-frequency transition duration compared with those that did not co-occur with rhythmic action. The rapid transitions and short syllables were similar to patterns of duration found in mature speech. The acoustic features remained even after co-occurrence disappeared. These findings suggest that co-occurrence of rhythmic action and vocal behavior may contribute to the infant's acquisition of the ability to perform the rapid glottal and articulatory movements that are indispensable for spoken language acquisition.

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Section: Discussionmentioning

confidence: 96%

Co‐occurences of preverbal vocal behavior and motor action in early infancy

Ejiri

Masataka

2001

Developmental Science

Self Cite

104

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The Onset of Language

Masataka

2003

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The Onset of Language outlines an approach to the development of expressive and communicative behaviour from early infancy to the onset of single word utterances. Nobuo Masataka's research is rooted in ethology and dynamic action theory. He argues that expressive and communicative actions are organized as a complex and cooperative system with other elements of the infant's physiology, behaviour and the social environments. Overall, humans are provided with a finite set of specific behaviour patterns, each of which is phylogenetically inherited as a primate species. However, the patterns are uniquely organized during ontogeny and a coordinated structure emerges which eventually leads us to acquire language. This fascinating book offers exciting insights into the precursors of speech and will be of interest to researchers and students of psychology, linguistics and animal behaviour biology.

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Introduction

Masataka¹

2003

The Onset of Language

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Influence of Lack of Auditory Feedback on the Synchronization between Preverbal Vocal Behaviors and Motor ctions: Deaf and Hearing-Infants Compaired

Cited by 12 publications

References 0 publications

Co‐occurences of preverbal vocal behavior and motor action in early infancy

Co‐occurences of preverbal vocal behavior and motor action in early infancy

The Onset of Language

Introduction

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