Annual change in articulatory acquisition of /k/ and /ɡ/ in three-year-old children

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  • Aoki Toshihito
    Udaka Otolaryngology Clinic Department of Otolaryngology, University of Tokushima School of Medicine
  • Ito Miyuki
    Udaka Otolaryngology Clinic
  • Takeyama Takaaki
    Udaka Otolaryngology Clinic Department of Otolaryngology, University of Tokushima School of Medicine
  • Sakamoto Sachi
    Department of Otolaryngology, University of Tokushima School of Medicine
  • Shimada Aki
    Department of Otolaryngology, University of Tokushima School of Medicine Sekine Otolaryngology Clinic
  • Udaka Jiro
    Udaka Otolaryngology Clinic Department of Otolaryngology, University of Tokushima School of Medicine
  • Takeda Noriaki
    Department of Otolaryngology, University of Tokushima School of Medicine

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Other Title
  • 3歳児健診受診児における構音発達の経年変化―/k//ɡ/を中心とした検討―

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<p>In the present study, we investigated the articulatory acquisition in three-year-old children who received municipal medical check-up from 2011 to 2016. The percentage of three-year-old children with articulatory errors gradually increased from 59.5% in 2011 to 84.1% in 2016. Although articulation of /k/ and /ɡ/ is believed to be acquired around the age of 3-year-6-month, 52.3% an 23.9% of three-year-old children enrolled in 2016 could not properly pronounce /k/ and /ɡ/, respectively. Because 24.3% and 5.4% of three-year-old children enrolled in 2011 had articulatory errors of /k/ and /ɡ/, respectively, it is suggested that the articulatory acquisition was delayed in Japanese children recently. The delayed articulatory acquisition may be related to insufficient exercise and poor communication with the adults around one in the childhood.</p>

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