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Complexity Matching in Vocal Interactions| old_uid | 15668 |
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| title | Complexity Matching in Vocal Interactions |
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| start_date | 2015/05/22 |
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| schedule | 11h-12h |
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| online | no |
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| location_info | salle B011 |
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| details | Organisateur : Simone Falk et Noël Nguyen |
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| summary | Spoken conversations require coordination, but it is challenging to
formalize and quantify coordination in vocalizations. Much progress
has been made by expressing coordination in related terms of
synchronization, entrainment, alignment, and convergence. But
coordination in speech appears to go beyond these terms of
behavioral matching, because interlocutors make distinct contributions
to vocal interactions. In this talk, two studies will be presented
that employed measures of complexity matching to examine coordination
in the acoustics of vocal interactions that are inherently irregular
and variable across a wide range of timescales. One study examined
speech signals in adult conversations between pairs of individuals,
and the other study examined infant vocalizations in conjunction with
those of caregivers and other adults in the infant vocalization environment.
In both studies, the temporal dynamics of vocalizations were boiled
down to time series of onsets in acoustic energy, and a single power
law was found in all conditions that quantified the nested clustering
of onsets across a range of timescales. The parameters of this power
law matched for vocalizations of individuals engaged in interaction,
indicating a different kind of coordination compared with behavioral
matching. This measure of complexity matching was sensitive to
different types of conversations and different types of infant
vocalizations, and changed with infant age. The talk will end with a
discussion of the implications of these results for theories of
language development and interaction. |
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| responsibles | Bigi |
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