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Social coordination in animal vocal interactions. Is there any evidence of turn-taking? The starling as an animal model.

ABSTRACT: Turn-taking in conversation appears to be a common feature in various human cultures and this universality raises questions about its biological basis and evolutionary trajectory. Functional convergence is a widespread phenomenon in evolution, revealing sometimes striking functional similarities between very distant species even though the mechanisms involved may be different. Studies on mammals (including non-human primates) and bird species with different levels of social coordination reveal that temporal and structural regularities in vocal interactions may depend on the species' social structure. Here we test the hypothesis that turn-taking and associated rules of conversations may be an adaptive response to the requirements of social life, by testing the applicability of turn-taking rules to an animal model, the European starling. Birdsong has for many decades been considered as one of the best models of human language and starling songs have been well described in terms of vocal production and perception. Starlings do have vocal interactions where alternating patterns predominate. Observational and experimental data on vocal interactions reveal that (1) there are indeed clear temporal and structural regularities, (2) the temporal and structural patterning is influenced by the immediate social context, the general social situation, the individual history, and the internal state of the emitter. Comparison of phylogenetically close species of Sturnids reveals that the alternating pattern of vocal interactions varies greatly according to the species' social structure, suggesting that interactional regularities may have evolved together with social systems. These findings lead to solid bases of discussion on the evolution of communication rules in relation to social evolution. They will be discussed also in terms of processes, at the light of recent neurobiological findings.

SUBMITTER: Henry L

PROVIDER: S-EPMC4585254 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Social coordination in animal vocal interactions. Is there any evidence of turn-taking? The starling as an animal model.

Henry Laurence L Craig Adrian J F K AJ Lemasson Alban A Hausberger Martine M

Frontiers in psychology 20150928

Turn-taking in conversation appears to be a common feature in various human cultures and this universality raises questions about its biological basis and evolutionary trajectory. Functional convergence is a widespread phenomenon in evolution, revealing sometimes striking functional similarities between very distant species even though the mechanisms involved may be different. Studies on mammals (including non-human primates) and bird species with different levels of social coordination reveal t ...[more]

PMID: 26441787

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Project description:ObjectivesThe primary objective of the study was to examine the occurrence and temporal structure of vocal turn-taking during spontaneous interactions between mothers and their children with cochlear implants (CI) over the first year after cochlear implantation as compared with interactions between mothers and children with normal hearing (NH).DesignMothers' unstructured play sessions with children with CI (n = 12) were recorded at 2 time points, 3 months (mean age 18.3 months) and 9 months (mean age 27.5 months) post-CI. A separate control group of mothers with age-matched hearing children (n = 12) was recorded at the same 2 time points. Five types of events were coded: mother and child vocalizations, vocalizations including speech overlap, and between- and within-speaker pauses. We analyzed the proportion of child and mother vocalizations involved in turn-taking, the temporal structure of turn-taking, and the temporal reciprocity of turn-taking using proportions of simultaneous speech and the duration of between- and within-speaker pauses.ResultsThe CI group produced a significantly smaller proportion of vocalizations in turn-taking than the NH group at the first session; however, CI children's proportion of vocalizations in turn-taking increased over time. There was a significantly larger proportion of simultaneous speech in the CI compared with the NH group at the first session. The CI group produced longer between-speaker pauses as compared with those in the NH group at the first session with mothers decreasing the duration of between-speaker pauses over time. NH infants and mothers in both groups produced longer within- than between-speaker pauses but CI infants demonstrated the opposite pattern. In addition, the duration of mothers' between-speaker pauses (CI and NH) was predicted by the duration of the infants' between-speaker pauses.ConclusionsVocal turn-taking and timing in both members of the dyad, the mother and infant, were sensitive to the experiential effects of child hearing loss and remediation with CI. Child hearing status affected dyad-specific coordination in the timing of responses between mothers and their children.

Dataset Information

Social coordination in animal vocal interactions. Is there any evidence of turn-taking? The starling as an animal model.

Publications

Social coordination in animal vocal interactions. Is there any evidence of turn-taking? The starling as an animal model.

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