Gesture-speech physics: The biomechanical basis for the emergence of gesture-speech synchrony

Journal of Experimental Psychology. General
Wim PouwJames A Dixon

Abstract

The phenomenon of gesture-speech synchrony involves tight coupling of prosodic contrasts in gesture movement (e.g., peak velocity) and speech (e.g., peaks in fundamental frequency; F0). Gesture-speech synchrony has been understood as completely governed by sophisticated neural-cognitive mechanisms. However, gesture-speech synchrony may have its original basis in the resonating forces that travel through the body. In the current preregistered study, movements with high physical impact affected phonation in line with gesture-speech synchrony as observed in natural contexts. Rhythmic beating of the arms entrained phonation acoustics (F0 and the amplitude envelope). Such effects were absent for a condition with low-impetus movements (wrist movements) and a condition without movement. Further, movement-phonation synchrony was more pronounced when participants were standing as opposed to sitting, indicating a mediating role for postural stability. We conclude that gesture-speech synchrony has a biomechanical basis, which will have implications for our cognitive, ontogenetic, and phylogenetic understanding of multimodal language. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Citations

Aug 5, 2020·Journal of Autism and Developmental Disorders·Eva MurilloIgnacio Montero
Sep 25, 2020·Proceedings of the National Academy of Sciences of the United States of America·Wim PouwJames A Dixon
Oct 3, 2020·The Journal of the Acoustical Society of America·Wim PouwJames A Dixon
Dec 19, 2020·Annals of the New York Academy of Sciences·Wim PouwJames A Dixon
Jan 28, 2021·Proceedings. Biological Sciences·Hans Rutger Bosker, David Peeters
Nov 17, 2020·Frontiers in Psychology·Patrick Louis RohrerPilar Prieto
Jul 13, 2021·Developmental Science·Núria Esteve-GibertMariapaola D'Imperio
Aug 20, 2021·Scientific Reports·James TrujilloLinda Drijvers

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