Article Dans Une Revue (Data Paper) Human Movement Science Année : 2018

Joint dyadic action: Error correction by two persons works better than by one alone

Résumé

We investigated how two people learn to coordinate their movement to achieve a joint goal. Pairs of participants oscillated a joystick with their dominant hand whilst looking at a common feedback, a Lissajous figure, where each participant controlled either the vertical or horizontal coordinate of a moving dot. In the absence of specific instructions, inter-personal coordination was highly variable, punctuated by intermittent phase locking. When participants were required to produce a circular Lissajous figure, coordination variability decreased while accuracy, transfer entropy and the incidence of stable coordinative solutions (fixed points, including bi-stability) increased as a function of practice trials. When one partner closed his/her eyes, so that the other one received the full control of error correction, the stability and accuracy of coordination decreased. A questionnaire showed that partners experienced the feeling of we-control. The results were interpreted in terms of a disturbance ∼ correction challenge: joint action is enhanced by having a flexibly adjusting co-actor rather than a more predictable, but not adjusting, partner. At transfer, partners were able to produce a new, never-practiced Lissajous pattern, evidencing the generalisability of joint learning.

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hal-04139753 , version 1 (10-07-2024)

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Viviane Kostrubiec, Raoul Huys, Pier-Gorgio Zanone. Joint dyadic action: Error correction by two persons works better than by one alone. Human Movement Science, 2018, 61, pp.1-18. ⟨10.1016/j.humov.2018.06.014⟩. ⟨hal-04139753⟩
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