In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 141, No. 5_Supplement ( 2017-05-01), p. 3836-3836
Abstract:
Protophones (Oller, 2000) are regarded as precursors of the human speech. Deviation in the onset of the protophone patterns is associated with a variety of developmental disorders. This study investigated early speech development of three infants with high risk of cerebral palsy (CP) in the first year of life based on 6 categories of protophones: vocant, growl, squeal, cry, laugh, and others (including whisper, ingressive sound, raspberry, other consonant alone, and yell) (Buder et al., 2012). They were early identified with high risk of CP and had been detected disorders by pediatricians. Three recordings in the period of 4 to 12 months from each infant were perceptually categoriezed. The major findings were (1) The frequency of vocant increased over time; (2) others dominated in the vocalizations; (3) squeal (high pitch) show lower frequency than growl (low pitch). These preliminary findings displayed a profile of early vocalization of children with CP. In future studies, data from typically developing children should also be included to reveal the deviation of disordered speech. Moreover, more data from more participants should be included to trace how these six categories of protophones are variegated in the first year of life, and then develop toward mature speech categories.
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
2017
detail.hit.zdb_id:
1461063-2
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