TY - JOUR
T1 - Age-related changes in acoustic modifications of Mandarin maternal speech to preverbal infants and five-year-old children
T2 - A longitudinal study
AU - Liu, Huei Mei
AU - Tsao, Feng Ming
AU - Kuhl, Patricia K.
PY - 2009/9
Y1 - 2009/9
N2 - Acoustic-phonetic exaggeration of infant-directed speech (IDS) is well documented, but few studies address whether these features are modified with a child's age. Mandarin-speaking mothers were recorded while addressing an adult and their child at two ages (0 ; 71 ; 0 and 5 ; 0) to examine the acoustic-phonetic differences between IDS and child-directed speech (CDS). CDS exhibits an exaggeration pattern resembling that of IDS expanded vowel space, longer vowels, higher pitch and greater lexical tone differences when compared to ADS. Longitudinal analysis demonstrated that the extent of acoustic exaggeration is significantly smaller in CDS than in IDS. Age-related changes in maternal speech provide some support for the hypothesis that mothers adjust their speech directed toward children as a function of the child's language ability.
AB - Acoustic-phonetic exaggeration of infant-directed speech (IDS) is well documented, but few studies address whether these features are modified with a child's age. Mandarin-speaking mothers were recorded while addressing an adult and their child at two ages (0 ; 71 ; 0 and 5 ; 0) to examine the acoustic-phonetic differences between IDS and child-directed speech (CDS). CDS exhibits an exaggeration pattern resembling that of IDS expanded vowel space, longer vowels, higher pitch and greater lexical tone differences when compared to ADS. Longitudinal analysis demonstrated that the extent of acoustic exaggeration is significantly smaller in CDS than in IDS. Age-related changes in maternal speech provide some support for the hypothesis that mothers adjust their speech directed toward children as a function of the child's language ability.
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U2 - 10.1017/S030500090800929X
DO - 10.1017/S030500090800929X
M3 - Article
C2 - 19232142
AN - SCOPUS:70349787040
VL - 36
SP - 909
EP - 922
JO - Journal of Child Language
JF - Journal of Child Language
SN - 0305-0009
IS - 4
ER -