Human laterality for manipulation and gestural communication: A study of beach-volleyball players during the Olympic Games.
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| Title: | Human laterality for manipulation and gestural communication: A study of beach-volleyball players during the Olympic Games. |
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| Authors: | Prieur, Jacques (AUTHOR), Le Du, Gwendoline (AUTHOR), Stomp, Mathilde (AUTHOR), Barbu, Stéphanie (AUTHOR), Blois-Heulin, Catherine (AUTHOR) |
| Source: | Laterality. Mar2020, Vol. 25 Issue 2, p229-254. 26p. |
| Subjects: | Lateral dominance, Olympic Games, Volleyball players, Athletes, Speech & gesture, Cerebral dominance, Demographic characteristics |
| Abstract: | Comparative studies can help understand better brain functional lateralization for manipulation and language. This study investigated and compared, for the first time, human adults' laterality for manipulation and gestures in a non-experimental social context. We analysed the manual laterality of 48 beach volleyball athletes for four frequently expressed behaviours: a complex throwing action (jump serve) and three gestures (CLAP HAND, PUMP FIST and SLAP HAND-TO-HAND). We evaluated population-level laterality bias for each of the four behaviours separately, compared manual laterality between behaviours and investigated factors influencing gestural laterality. We furthered our between-gestures comparison by taking into account three categories of factors simultaneously: gesture characteristics (sensory modality), interactional context components (positions of interactants and emotional valence), and individual demographic characteristics (age, sex and country). Our study showed that (1) each behaviour considered presented a population-level right-hand bias, (2) differences of laterality between behaviours were probably related to gesture sensory modality and (3) signaller's laterality was modulated differently in relation to positions of interactants, emotional valence, age and sex. Our results support the literature suggesting that left-hemisphere specialization for manipulation and language (speech and gestures) may have evolved from complex manual activities such as throwing and from gestural communication. [ABSTRACT FROM AUTHOR] |
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| Database: | Psychology and Behavioral Sciences Collection |
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