Title
Tonal synchrony in mother-infant interaction based on harmonic and pentatonic series Tonal synchrony in mother-infant interaction based on harmonic and pentatonic series
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Norwood, N.J. ,
Subject
Biology
Source (journal)
Infant behavior and development. - Norwood, N.J.
Volume/pages
33(2010) :4 , p. 387-400
ISSN
0163-6383
ISI
000285857000003
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
This study reports the occurrence of tonal synchrony as a new dimension of early motherinfant interaction synchrony. The findings are based on a tonal and temporal analysis of vocal interactions between 15 mothers and their 3-month-old infants during 5 min of free-play in a laboratory setting. In total, 558 vocal exchanges were identified and analysed, of which 84% reflected harmonic or pentatonic series. Another 10% of the exchanges contained absolute and/or relative pitch and/or interval imitations. The total durations of dyads being in tonal synchrony were normally distributed (M = 3.71, SD = 2.44). Vocalisations based on harmonic series appeared organised around the major triad, containing significantly more simple frequency ratios (octave, fifth and third) than complex ones (non-major triad tones). Tonal synchrony and its characteristics are discussed in relation to infant-directed speech, communicative musicality, pre-reflective communication and its impact on the quality of early motherinfant interaction and child's development.
E-info
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