4-6세 정상발달아동 및 성인의 종성파열음 지각력 비교
The final stop consonant perception in typically developing children aged 4 to 6 years and adults
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초록
This study aimed to identify the development pattern of final stop consonant perception using the gating task. Sixty-foursubjects participated in the study: 16 children aged 4 years, 16 children aged 5 years, 17 children aged 6 years, and 15adults. One-syllable words with consonant-vowel-consonant(CVC) structure, mokㄱ-motㄱand papㄱ-patㄱ were used as stimuli inorder to remove the redundancy of acoustic cues in stimulus words, 40ms-length (-40ms) and 60ms-length (-60ms) from theentire duration of the final consonant were deleted. Three conditions (the whole word segment, -40ms, -60ms) were used forthis speech perception experiment. 48 tokens (4 stimuli x 3 conditions x 4 trials) in total were provided for participants. Theresults indicated that 5 and 6 year olds showed final consonant perception similar to adults in stimuli, papㄱ-patㄱ and onlythe 6-year-old children showed perception similar to adults in stimuli, 'mokㄱ-motㄱ. The results suggested that youngertypically developing children require more acoustic information to accurately perceive final consonants than older children andadults. Final consonant perception ability may become adult-like around 6 years old. The study provides fundamental data onthe development pattern of speech perception in normal developing children, which can be used to compare to those ofchildren with communication disorders.
Abstract
This study aimed to identify the development pattern of final stop consonant perception using the gating task. Sixty-foursubjects participated in the study: 16 children aged 4 years, 16 children aged 5 years, 17 children aged 6 years, and 15adults. One-syllable words with consonant-vowel-consonant(CVC) structure, mokㄱ-motㄱand papㄱ-patㄱ were used as stimuli inorder to remove the redundancy of acoustic cues in stimulus words, 40ms-length (-40ms) and 60ms-length (-60ms) from theentire duration of the final consonant were deleted. Three conditions (the whole word segment, -40ms, -60ms) were used forthis speech perception experiment. 48 tokens (4 stimuli x 3 conditions x 4 trials) in total were provided for participants. Theresults indicated that 5 and 6 year olds showed final consonant perception similar to adults in stimuli, papㄱ-patㄱ and onlythe 6-year-old children showed perception similar to adults in stimuli, 'mokㄱ-motㄱ. The results suggested that youngertypically developing children require more acoustic information to accurately perceive final consonants than older children andadults. Final consonant perception ability may become adult-like around 6 years old. The study provides fundamental data onthe development pattern of speech perception in normal developing children, which can be used to compare to those ofchildren with communication disorders.
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