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Michel Y, Schulleri KH, Johannsen L, Lee D. Coordination tending towards an anti-phase relationship determines greater sway reduction during entrainment with a simulated partner. Hum Mov Sci 2023; 89:103090. [PMID: 37146446 DOI: 10.1016/j.humov.2023.103090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 04/07/2023] [Accepted: 04/10/2023] [Indexed: 05/07/2023]
Abstract
The increased risk of falls in the older aged population demands the development of assistive robotic devices capable of effective balance support. For the development and increased user acceptance of such devices, which provide balance support in a human-like way, it is important to understand the simultaneous occurrence of entrainment and sway reduction in human-human interaction. However, sway reduction has not been observed yet during a human touching an external, continuously moving reference, which rather increased human body sway. Therefore, we investigated in 15 healthy young adults (27.20±3.55 years, 6 females) how different simulated sway-responsive interaction partners with different coupling modes affect sway entrainment, sway reduction and relative interpersonal coordination, as well as how these human behaviours differ depending on the individual body schema accuracy. For this, participants were lightly touching a haptic device that either played back an average pre-recorded sway trajectory ("Playback") or moved based on the sway trajectory simulated by a single-inverted pendulum model with either a positive (Attractor) or negative (Repulsor) coupling to participant's body sway. We found that body sway reduced not only during the Repulsor-interaction, but also during the Playback-interaction. These interactions also showed a relative interpersonal coordination tending more towards an anti-phase relationship, especially the Repulsor. Moreover, the Repulsor led to the strongest sway entrainment. Finally, a better body schema contributed to a reduced body sway in both the "reliable" Repulsor and the "less reliable" Attractor mode. Consequently, a relative interpersonal coordination tending more towards an anti-phase relationship and an accurate body schema are important to facilitate sway reduction.
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Affiliation(s)
- Youssef Michel
- TUM School of Computation, Information and Technology, Human-centered Assistive Robotics, Technical University of Munich, Karlstraße 45, 80333 Munich, Germany
| | - Katrin H Schulleri
- TUM School of Computation, Information and Technology, Human-centered Assistive Robotics, Technical University of Munich, Karlstraße 45, 80333 Munich, Germany.
| | - Leif Johannsen
- Department of Psychology, Durham University, DH1 3LE, UK; TUM Department of Sport and Health Sciences, Human Movement Science, Technical University of Munich, Munich 80992, Germany
| | - Dongheui Lee
- Institute of Computer Technology, Autonomous Systems, Technische Universität Wien, Vienna 1040, Austria; Institute of Robotics and Mechatronics, German Aerospace Center (DLR), 82234 Wessling, Germany
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Crombé K, Denys M, Maes PJ. The Role of a Mechanical Coupling in (Spontaneous) Interpersonal Synchronization: a Human Version of Huygens’ Clock Experiments. TIMING & TIME PERCEPTION 2022. [DOI: 10.1163/22134468-bja10054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Interpersonal musical interaction typically relies on the mutual exchange of auditory and visual information. Inspired by the finding of Christiaan Huygens that two pendulum clocks spontaneously synchronize when hanging from a common, movable wooden beam, we explored the possible use of mechanical coupling as an alternative coupling modality between people to strengthen (spontaneous and instructed) joint (musical) synchronization. From a coupled oscillator viewpoint, we hypothesized that dyads standing on a common movable platform would cause bidirectional passive body motion (and corresponding proprioceptive, vestibular and somatosensory sensations), leading to enhanced interpersonal coordination and mutual entrainment. To test this hypothesis, we asked dyads to perform a musical synchronization–continuation task, while standing on a movable platform. Their rhythmic movements were compared under different conditions: mechanically coupled/decoupled platforms, and spontaneous/instructed synchronization. Additionally, we investigated the effects of performing an additional collaborative conversation task, and of initial tempo and phase differences in the instructed rhythms. The analysis was based on cross wavelet and synchrosqueezed transforms. The overall conclusion was that a mechanical coupling was effective in support of interpersonal synchronization, specifically when dyads were explicitly instructed to synchronize using the movable platform (instructed synchronization). On the other hand, results showed that mechanical coupling led only minimally to spontaneous interpersonal synchronization. The collaborative task and the initial phase and tempo have no strong effect. Although more research is required, possible applications can be found in the domains of music education, dance and music performance, sports, and well-being.
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Affiliation(s)
- Kristel Crombé
- Department of Art, Music and Theatre Sciences, Faculty of Arts and Philosophy, Ghent University, 9000 Gent, Belgium
| | - Marlies Denys
- Department of Art, Music and Theatre Sciences, Faculty of Arts and Philosophy, Ghent University, 9000 Gent, Belgium
| | - Pieter-Jan Maes
- Department of Art, Music and Theatre Sciences, Faculty of Arts and Philosophy, Ghent University, 9000 Gent, Belgium
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Illustrating changes in landscapes of passing opportunities along a set of competitive football matches. Sci Rep 2021; 11:9792. [PMID: 33963254 PMCID: PMC8105376 DOI: 10.1038/s41598-021-89184-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 03/10/2021] [Indexed: 11/16/2022] Open
Abstract
This study aims to illustrate the landscape of passing opportunities of a football team across a set of competitive matches. To do so positional data of 5 competitive matches was used to create polygons of pass availability. Passes were divided into three types depending on the hypothetical threat they may pose to the opposing defense (penetrative, support, and backwards passes). These categories were used to create three heatmaps per match. Moreover, the mean time of passing opportunities was calculated and compared across matches and for the three categories of passes. Due to the specificity of player’s interactive behavior, results showed heatmaps with a variety of patterns. Specifically the fifth match was very dissimilar to the other four. However, characterizing a football match in terms of passing opportunities with a single heatmap dismisses the variety of dynamics that occur throughout a match. Therefore, three temporal heatmaps over windows of 10 min were presented highlighting on-going dynamical changes in pass availability. Results also display that penetrative passes were available over shorter periods of time than backward passes that were available shorter than support passes. The results highlight the sensibility of the model to different task constrains that emerge within football matches.
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Kimmel M. The Micro-Genesis of Interpersonal Synergy. Insights from Improvised Dance Duets. ECOLOGICAL PSYCHOLOGY 2021. [DOI: 10.1080/10407413.2021.1908142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Michael Kimmel
- Cognitive Science Hub, University of Vienna, Vienna, Austria
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Affiliation(s)
- Jesper Aagaard
- Department of Psychology and Behavioral Sciences, Aarhus University, Aarhus, Denmark
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de Poel HJ, Roerdink M, Peper C(LE, Beek PJ. A Re-Appraisal of the Effect of Amplitude on the Stability of Interlimb Coordination Based on Tightened Normalization Procedures. Brain Sci 2020; 10:brainsci10100724. [PMID: 33066054 PMCID: PMC7601379 DOI: 10.3390/brainsci10100724] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/25/2020] [Accepted: 10/09/2020] [Indexed: 11/26/2022] Open
Abstract
The stability of rhythmic interlimb coordination is governed by the coupling between limb movements. While it is amply documented how coordinative performance depends on movement frequency, theoretical considerations and recent empirical findings suggest that interlimb coupling (and hence coordinative stability) is actually mediated more by movement amplitude. Here, we present the results of a reanalysis of the data of Post, Peper, and Beek (2000), which were collected in an experiment aimed at teasing apart the effects of frequency and amplitude on coordinative stability of both steady-state and perturbed in-phase and antiphase interlimb coordination. The dataset in question was selected because we found indications that the according results were prone to artifacts, which may have obscured the potential effects of amplitude on the post-perturbation stability of interlimb coordination. We therefore redid the same analysis based on movement signals that were normalized each half-cycle for variations in oscillation center and movement frequency. With this refined analysis we found that (1) stability of both steady-state and perturbed coordination indeed seemed to depend more on amplitude than on movement frequency per se, and that (2) whereas steady-state antiphase coordination became less stable with increasing frequency for prescribed amplitudes, in-phase coordination became more stable at higher frequencies. Such effects may have been obscured in previous studies due to (1) unnoticed changes in performed amplitudes, and/or (2) artifacts related to inappropriate data normalization. The results of the present reanalysis therefore give cause for reconsidering the relation between the frequency, amplitude, and stability of interlimb coordination.
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Affiliation(s)
- Harjo J. de Poel
- Department of Human Movement Sciences, University Medical Center Groningen (UMCG), University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
- Correspondence:
| | - Melvyn Roerdink
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, van der Boechorststraat 7-9, 1081 BT Amsterdam, The Netherlands; (M.R.); (C.E.P.); (P.J.B.)
| | - C. (Lieke) E. Peper
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, van der Boechorststraat 7-9, 1081 BT Amsterdam, The Netherlands; (M.R.); (C.E.P.); (P.J.B.)
| | - Peter J. Beek
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, van der Boechorststraat 7-9, 1081 BT Amsterdam, The Netherlands; (M.R.); (C.E.P.); (P.J.B.)
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Tognoli E, Zhang M, Fuchs A, Beetle C, Kelso JAS. Coordination Dynamics: A Foundation for Understanding Social Behavior. Front Hum Neurosci 2020; 14:317. [PMID: 32922277 PMCID: PMC7457017 DOI: 10.3389/fnhum.2020.00317] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/17/2020] [Indexed: 11/13/2022] Open
Abstract
Humans' interactions with each other or with socially competent machines exhibit lawful coordination patterns at multiple levels of description. According to Coordination Dynamics, such laws specify the flow of coordination states produced by functional synergies of elements (e.g., cells, body parts, brain areas, people…) that are temporarily organized as single, coherent units. These coordinative structures or synergies may be mathematically characterized as informationally coupled self-organizing dynamical systems (Coordination Dynamics). In this paper, we start from a simple foundation, an elemental model system for social interactions, whose behavior has been captured in the Haken-Kelso-Bunz (HKB) model. We follow a tried and tested scientific method that tightly interweaves experimental neurobehavioral studies and mathematical models. We use this method to further develop a body of empirical research that advances the theory toward more generalized forms. In concordance with this interdisciplinary spirit, the present paper is written both as an overview of relevant advances and as an introduction to its mathematical underpinnings. We demonstrate HKB's evolution in the context of social coordination along several directions, with its applicability growing to increasingly complex scenarios. In particular, we show that accommodating for symmetry breaking in intrinsic dynamics and coupling, multiscale generalization and adaptation are principal evolutions. We conclude that a general framework for social coordination dynamics is on the horizon, in which models support experiments with hypothesis generation and mechanistic insights.
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Affiliation(s)
- Emmanuelle Tognoli
- Human Brain and Behavior Laboratory, Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, United States
- Department of Biological Sciences, Florida Atlantic University, Boca Raton, FL, United States
| | - Mengsen Zhang
- Human Brain and Behavior Laboratory, Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, United States
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, United States
| | - Armin Fuchs
- Human Brain and Behavior Laboratory, Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, United States
- Department of Physics, Florida Atlantic University, Boca Raton, FL, United States
| | - Christopher Beetle
- Department of Physics, Florida Atlantic University, Boca Raton, FL, United States
| | - J. A. Scott Kelso
- Human Brain and Behavior Laboratory, Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, United States
- Intelligent Systems Research Centre, Ulster University, Londonderry, United Kingdom
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Meerhoff LA, De Poel HJ, Jowett TWD, Button C. Walking with avatars: Gait-related visual information for following a virtual leader. Hum Mov Sci 2019; 66:173-185. [PMID: 31029839 DOI: 10.1016/j.humov.2019.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 04/04/2019] [Accepted: 04/05/2019] [Indexed: 11/15/2022]
Abstract
Dynamic situations, such as interactive sports or walking on a busy street, impose high demands on a person's ability to interact with (others in) its environment (i.e., 'interact-ability'). The current study examined how distance regulation, a fundamental component of these interactions, is mediated by different sources of visual information. Participants were presented with a back and forwards moving virtual leader, which they had to follow by walking back and forwards themselves. We presented the leader in several appearances that differed in the presence of segmental (i.e., relative movements of body segments), cadence-related (i.e., sway and bounce), and global (i.e., optical expansion-compression) information. Results indicated that removing segmental motion information from the virtual leader significantly deteriorated both temporal synchronization and spatial accuracy of the follower to the leader, especially when the movement path of the leader was less regular/predictable. However, no difference was found between cadence-related and global motion information appearances. We argue that regulating distance with others effectively requires a versatile attunement to segmental and global motion information depending on the specific task demands. The results further support the notion that detection of especially segmental information allows for more timely 'anticipatory' tuning to another person's locomotor movements and intentions.
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Affiliation(s)
- Laurentius A Meerhoff
- School of Physical Education, Sport and Exercise Science, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
| | - Harjo J De Poel
- Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, PO Box 196, 9700 AD Groningen, the Netherlands
| | - Tim W D Jowett
- Department of Mathematics and Statistics, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Chris Button
- School of Physical Education, Sport and Exercise Science, University of Otago, PO Box 56, Dunedin 9054, New Zealand
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Cuijpers LS, Den Hartigh RJR, Zaal FTJM, de Poel HJ. Rowing together: Interpersonal coordination dynamics with and without mechanical coupling. Hum Mov Sci 2019; 64:38-46. [PMID: 30654167 DOI: 10.1016/j.humov.2018.12.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 12/20/2018] [Accepted: 12/28/2018] [Indexed: 11/16/2022]
Abstract
Although most research on interpersonal coordination focuses on perceptual forms of interaction, many interpersonal actions also involve interactions of mechanical nature. We examined the effect of mechanical coupling in a rowing task from a coupled oscillator perspective: 16 pairs of rowers rowed on ergometers that were physically connected through slides (mechanical coupling condition) or on separate ergometers (no mechanical coupling condition). They rowed in two patterns (in- and antiphase) and at two movement frequencies (20 and 30 strokes per minute). Seven out of sixteen pairs showed one or more coordinative breakdowns, which only occurred in the antiphase condition. The occurrence of these breakdowns was not affected by mechanical coupling, nor by movement frequency. For the other nine pairs, variability of steady state coordination was substantially lower in the mechanical coupling condition. Together, these results show that the increase in coupling strength through mechanical coupling stabilizes coordination, even more so for antiphase coordination.
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Affiliation(s)
- Laura S Cuijpers
- University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences, Groningen, The Netherlands.
| | | | - Frank T J M Zaal
- University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences, Groningen, The Netherlands.
| | - Harjo J de Poel
- University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences, Groningen, The Netherlands.
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Nordham CA, Tognoli E, Fuchs A, Kelso JAS. How Interpersonal Coordination Affects Individual Behavior (and Vice Versa): Experimental analysis and adaptive HKB model of social memory. ECOLOGICAL PSYCHOLOGY 2018; 30:224-249. [PMID: 33041602 DOI: 10.1080/10407413.2018.1438196] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
How one behaves after interacting with a friend may not be the same as before the interaction. The present study investigated which spontaneous coordination patterns formed between two persons and whether a remnant of the interaction remained ("social memory"). Pairs of people sat face-to-face and continuously flexed index fingers while vision between partners was manipulated to allow or prevent information exchange. Trials consisted of three successive twenty-second intervals: without vision, with vision, and again without vision. Steady, transient, or absent phase coupling was observed during vision. In support of social memory, participants tended to remain near each other's movement frequency after the interaction ended. Furthermore, the greater the stability of interpersonal coordination, the more similar partners' post-interactional frequencies became. Proposing that social memory resulted from prior frequency adaptation, a model based on Haken-Kelso-Bunz oscillators reproduced the experimental findings, even for patterns observed on individual trials. Parametric manipulations revealed multiple routes to social memory through the interplay of adaptation and other model parameters. The experimental results, model, and interpretation motivate potential future research and therapeutic applications.
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Affiliation(s)
- Craig A Nordham
- Human Brain and Behavior Laboratory, Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, USA
| | - Emmanuelle Tognoli
- Human Brain and Behavior Laboratory, Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, USA
| | - Armin Fuchs
- Human Brain and Behavior Laboratory, Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, USA.,Department of Physics, Florida Atlantic University, Boca Raton, FL, USA
| | - J A Scott Kelso
- Human Brain and Behavior Laboratory, Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, USA.,Intelligent Systems Research Centre, School of Computing and Intelligent Systems, Ulster University, Derry∼Londonderry, N. Ireland, UK
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