Journal
HUMAN MOVEMENT SCIENCE
Volume 93, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.humov.2023.103160
Keywords
Social interaction; Joint action; Interpersonal; Coordination dynamics; Intention; Bimanual
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Research has shown that spontaneous visual coupling supports frequency entrainment, phase attraction, and intermittent interpersonal coordination during the switch from a novision (NV) to vision (V) context among co-actors. The experiments demonstrate that similar self-paced frequencies result from same amplitude movements, while different amplitudes lead to disparate frequencies. In experiment 1, co-actors were instructed to maintain amplitude without explicit instructions for coordination, which limited frequency and phase entrainment in the V context. In experiment 2, co-actors were instructed to maintain amplitude and intentionally coordinate together, resulting in significant frequency modulations and the production of various stable relative phase patterns.
Research has shown that spontaneous visual coupling supports frequency entrainment, phase attraction, and intermittent interpersonal coordination when co-actors are switched from a novision (NV) to vision (V) context. In two experiments, co-actors started in a NV context while producing the same or different amplitude movements. The same amplitude resulted in similar self-paced frequencies, while different amplitudes resulted in disparate frequencies. In experiment 1, co-actors were instructed to maintain amplitude while receiving no instructions to coordinate their actions. Frequency and phase entrainment was limited in the V context even when co-actors started the NV context with the same amplitude. In experiment 2, co-actors were instructed to maintain amplitude and intentionally coordinate together, but not at a specific pattern. Significant frequency modulations occurred to maintain amplitude as the co-actors sought to coordinate their actions. With the open-ended instructions, co-actors produced inphase and anti-phase coordination along with intermittent performance exhibited by shifts between a variety of stable relative phase patterns. The proposed hypotheses and findings are discussed within the context of a shared manifold representation for joint action contexts, with the coordination dynamics expressed by the HKB model of relative phase serving to conceptualization the representations in the shared manifold.
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