VOCAL AFFECT IN 3-YEAR-OLDS - A QUANTITATIVE ACOUSTIC ANALYSIS OF CHILD LAUGHTER

被引:29
作者
NWOKAH, EE
DAVIES, P
ISLAM, A
HSU, HC
FOGEL, A
机构
[1] UNIV UTAH,DEPT PSYCHOL,SALT LAKE CITY,UT 84112
[2] PURDUE UNIV,SCH MECH ENGN,W LAFAYETTE,IN 47907
[3] PURDUE UNIV,SCH ELECT ENGN,W LAFAYETTE,IN 47907
[4] DUKE UNIV,DEPT PSYCHOL,DURHAM,NC 27706
关键词
D O I
10.1121/1.407242
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Recordings were obtained of the laughter vocalizations of four 3-year-old children during three sessions of spontaneous free-play between mother and child in a laboratory playroom. Acoustic analysis was used to determine laughter durations, laughter events, F0, and harmonic characteristics, and to suggest a taxonomy of laughter types. Melodic contours were assessed from patterns of F0 change during laughter. Mean duration of laughs ranged from 200 ms to 2.0 s, but events within a laugh were usually about 200-ms duration. Laughs were intuitively classified into four major types, and, following the acoustic analyses, were further defined and classified into types and subtypes of exclamatory and dull comment; chuckle; basic, variable, and classical rhythmical; and squeal. Melodic contours included more rising contours than previously reported for cry, but there was great variability in the types of contours produced especially for rhythmical laughs. The results of the acoustic analyses are discussed in relation to (a) the development of a taxonomy of laughter and (b) different features of the vocal affect characteristics of high-intensity emotion.
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页码:3076 / 3090
页数:15
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