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Fernandes CA, Norte GE, Schwab SM, Gokeler A, Murray A, Bazett-Jones DM, Sherman DA. Interpersonal Coordination between Female Soccer Players: Leader-Follower Roles within a Collision-Avoidance Task. Int J Sports Phys Ther 2024; 19:548-560. [PMID: 38707861 PMCID: PMC11065781 DOI: 10.26603/001c.116156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/29/2024] [Indexed: 05/07/2024] Open
Abstract
Background/Purpose Return to sport decision-making may be improved by assessing an athlete's ability to coordinate movement with opponents in sport. The purpose was to investigate whether previous injuries associated with female soccer players' interpersonal coordination during a collision avoidance task. The authors hypothesized that external perturbations would disrupt the strength and stability of coordinated movement, and that individuals with a history of injury would be less likely to recover coordinated movement. Study Design Cross-Sectional. Methods Nine female athletes with a history of lower extremity injuries and nine without injuries were paired into dyads. Each dyad completed twenty trials of an externally paced collision-avoidance agility task with an unanticipated perturbation. Participant trajectories were digitized and analyzed using cross-recurrence quantification analysis (CRQA) to determine the strength and stability of interpersonal coordination dynamics. Trials in which participants with injury history assumed leader or follower roles within each dyad were then used to study how dyadic coordination varied across task stages (early, perturbation, and late) using linear mixed effect models. Cohen's d effect sizes were calculated to demonstrate magnitude of differences. In exploratory analysis, psychological readiness (i.e., self-reported knee functioning, fear of injury, and risk-taking propensity) was evaluated for their association with leader-follower status. Results Perturbation disrupted the strength (R2=0.65, p<0.001, early=49.7±1.7, perturbation=41.1±1.7, d=0.39) and stability (R2=0.71, p < 0.001, early=65.0±1.6, perturbation=58.0±1.7, d=0.38) of interpersonal coordination regardless of leader-follower status. Individuals with injury history failed to restore coordination after the perturbation compared to control participants (injury=44.2.0±2.1, control=50.8±2.6, d=0.39). Neither demographic nor psychological measures were associated with leader-follower roles (B=0.039, p=0.224). Conclusion Individuals with a history of lower extremity injury may have a diminished ability to adapt interpersonal coordination to perturbations, possibly contributing to a higher risk of re-injury. Level of Evidence 3.
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Affiliation(s)
| | - Grant E Norte
- Cognition Neuroplasticity and Sarcopenia LaboratoryUniversity of Central Florida
| | - Sarah M Schwab
- 3. Department of Rehabilitation, Exercise, & Nutrition SciencesUniversity of Cincinnati
| | - Alli Gokeler
- 4. Exercise Science and Neuroscience, Department of Exercise & HealthPaderborn University
| | - Amanda Murray
- College of Health and Human ServicesUniversity of Toledo
| | | | - David A Sherman
- Chobanian & Avedisian School of MedicineBoston University
- Live4 Physical Therapy and Wellness
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2
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Paxton A. The Dynamical Hypothesis in Situ: Challenges and Opportunities for a Dynamical Social Approach to Interpersonal Coordination. Top Cogn Sci 2023. [PMID: 38029348 DOI: 10.1111/tops.12712] [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: 03/24/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 12/01/2023]
Abstract
Over the past three decades, Van Gelder's dynamical hypothesis has been instrumental in reconceptualizing the ways in which perception-action-cognition unfolds over time and in context. Here, I examine how the dynamical approach has enriched the theoretical understanding of social dynamics within cognitive science, with a particular focus on interpersonal coordination. I frame this review around seven principles in dynamical systems: three that are well-represented in interpersonal coordination research to date (emergent behavior, context-sensitive behavior, and attractors) and four that could be useful opportunities for future growth (hysteresis, sensitivity to initial conditions, equifinality, and reciprocal compensation). In addition to identifying specific promising lines of theoretical inquiry, I focus on the significant potential afforded by computationally intensive science-especially in naturally occurring data or trace data. Building on the foundation laid over the past three decades, I argue that looking to increasingly situated and naturalistic settings (and data) is not only necessary to realize the full commitment to the dynamical hypothesis but is also critical to building parsimonious and principled theories of social phenomena.
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Affiliation(s)
- Alexandra Paxton
- Department of Psychological Sciences, University of Connecticut
- Center for the Ecological Study of Perception and Action, University of Connecticut
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3
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Bonnette S, Riley MA, Riehm C, DiCesare C, Christy M, Wilson J, Schille A, Diekfuss JA, Kiefer AW, Jayanthi N, Myer GD. Differences in Lower Extremity Coordination Patterns as a Function of Sports Specialization. J Mot Behav 2023; 55:245-255. [PMID: 36642425 PMCID: PMC11187714 DOI: 10.1080/00222895.2023.2166453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 09/19/2022] [Accepted: 10/24/2022] [Indexed: 01/17/2023]
Abstract
The practice of early sport specialization, defined as intense year-round training in a single sport at the exclusion of others, is increasing in youth athletics. Despite potential benefits, sport specialization may be detrimental to the health of young athletes, as specialization may increase the risk of musculoskeletal injuries-particularly overuse injuries. However, there remains limited knowledge about how sports specialization uniquely alters underlying sports-related motor behavior. The purpose of this study was to compare the variability of movement patterns exhibited by highly sports specialized youth athletes to that of nonspecialized athletes during performance of a sport-specific, virtual reality based cutting task. It was hypothesized that highly specialized athletes would display different patterns of movement coordination compared to nonspecialized athletes during both the run-up phase and cut-and-decelerate phase. In support of the hypothesis, specialized athletes exhibited both intra- and inter-limb coordination that were significantly different than unspecialized athletes. Overall, the results indicate that the highly specialized athletes tended to exhibit greater degrees of coordination but also the ability to break the coordinated patterns of joint angle changes to execute a cutting maneuver, which requires asymmetric demands on the lower extremities while planting on one leg and changing direction.
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Affiliation(s)
- Scott Bonnette
- Division of Sports Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, USA
| | - Michael A. Riley
- Department of Rehabilitation, Exercise, & Nutrition Sciences, University of Cincinnati, Cincinnati, USA
| | - Christopher Riehm
- Emory Sports Performance and Research Center (SPARC), Flowery Branch, GA, USA
| | | | - Michele Christy
- University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - John Wilson
- University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Andrew Schille
- Emory Sports Performance and Research Center (SPARC), Flowery Branch, GA, USA
| | - Jed A. Diekfuss
- Emory Sports Performance and Research Center (SPARC), Flowery Branch, GA, USA
- Emory Sports Medicine Center, Atlanta, GA, USA
| | - Adam W. Kiefer
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC USA
| | - Neeru Jayanthi
- Emory Sports Performance and Research Center (SPARC), Flowery Branch, GA, USA
- Emory Sports Medicine Center, Atlanta, GA, USA
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA, USA
| | - Gregory D. Myer
- Emory Sports Performance and Research Center (SPARC), Flowery Branch, GA, USA
- Emory Sports Medicine Center, Atlanta, GA, USA
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA, USA
- The Micheli Center for Sports Injury Prevention, Waltham, MA, USA
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4
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Simpson J, Nalepka P, Kallen RW, Dras M, Reichle ED, Hosking SG, Best C, Richards D, Richardson MJ. Conversation dynamics in a multiplayer video game with knowledge asymmetry. Front Psychol 2022; 13:1039431. [DOI: 10.3389/fpsyg.2022.1039431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022] Open
Abstract
Despite the challenges associated with virtually mediated communication, remote collaboration is a defining characteristic of online multiplayer gaming communities. Inspired by the teamwork exhibited by players in first-person shooter games, this study investigated the verbal and behavioral coordination of four-player teams playing a cooperative online video game. The game, Desert Herding, involved teams consisting of three ground players and one drone operator tasked to locate, corral, and contain evasive robot agents scattered across a large desert environment. Ground players could move throughout the environment, while the drone operator’s role was akin to that of a “spectator” with a bird’s-eye view, with access to veridical information of the locations of teammates and the to-be-corralled agents. Categorical recurrence quantification analysis (catRQA) was used to measure the communication dynamics of teams as they completed the task. Demands on coordination were manipulated by varying the ground players’ ability to observe the environment with the use of game “fog.” Results show that catRQA was sensitive to changes to task visibility, with reductions in task visibility reorganizing how participants conversed during the game to maintain team situation awareness. The results are discussed in the context of future work that can address how team coordination can be augmented with the inclusion of artificial agents, as synthetic teammates.
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5
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Laroche J, Tomassini A, Volpe G, Camurri A, Fadiga L, D’Ausilio A. Interpersonal sensorimotor communication shapes intrapersonal coordination in a musical ensemble. Front Hum Neurosci 2022; 16:899676. [PMID: 36248684 PMCID: PMC9556642 DOI: 10.3389/fnhum.2022.899676] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 09/01/2022] [Indexed: 11/25/2022] Open
Abstract
Social behaviors rely on the coordination of multiple effectors within one's own body as well as between the interacting bodies. However, little is known about how coupling at the interpersonal level impacts coordination among body parts at the intrapersonal level, especially in ecological, complex, situations. Here, we perturbed interpersonal sensorimotor communication in violin players of an orchestra and investigated how this impacted musicians' intrapersonal movements coordination. More precisely, first section violinists were asked to turn their back to the conductor and to face the second section of violinists, who still faced the conductor. Motion capture of head and bow kinematics showed that altering the usual interpersonal coupling scheme increased intrapersonal coordination. Our perturbation also induced smaller yet more complex head movements, which spanned multiple, faster timescales that closely matched the metrical levels of the musical score. Importantly, perturbation differentially increased intrapersonal coordination across these timescales. We interpret this behavioral shift as a sensorimotor strategy that exploits periodical movements to effectively tune sensory processing in time and allows coping with the disruption in the interpersonal coupling scheme. As such, head movements, which are usually deemed to fulfill communicative functions, may possibly be adapted to help regulate own performance in time.
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Affiliation(s)
- Julien Laroche
- Center for Translational Neurophysiology of Speech and Communication, Italian Institute of Technology, Ferrara, Italy
| | - Alice Tomassini
- Center for Translational Neurophysiology of Speech and Communication, Italian Institute of Technology, Ferrara, Italy
| | - Gualtiero Volpe
- Casa Paganini – InfoMus Research Centre, Department of Informatics, Bioengineering, Robotics and Systems Engineering (DIBRIS), University of Genova, Genova, Italy
| | - Antonio Camurri
- Casa Paganini – InfoMus Research Centre, Department of Informatics, Bioengineering, Robotics and Systems Engineering (DIBRIS), University of Genova, Genova, Italy
| | - Luciano Fadiga
- Center for Translational Neurophysiology of Speech and Communication, Italian Institute of Technology, Ferrara, Italy
- Sezione di Fisiologia, Dipartimento di Neuroscienze e Riabilitazione, Università di Ferrara, Ferrara, Italy
| | - Alessandro D’Ausilio
- Center for Translational Neurophysiology of Speech and Communication, Italian Institute of Technology, Ferrara, Italy
- Sezione di Fisiologia, Dipartimento di Neuroscienze e Riabilitazione, Università di Ferrara, Ferrara, Italy
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6
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Proksch S, Reeves M, Spivey M, Balasubramaniam R. Coordination dynamics of multi-agent interaction in a musical ensemble. Sci Rep 2022; 12:421. [PMID: 35013620 PMCID: PMC8748883 DOI: 10.1038/s41598-021-04463-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 12/22/2021] [Indexed: 11/21/2022] Open
Abstract
Humans interact with other humans at a variety of timescales and in a variety of social contexts. We exhibit patterns of coordination that may differ depending on whether we are genuinely interacting as part of a coordinated group of individuals vs merely co-existing within the same physical space. Moreover, the local coordination dynamics of an interacting pair of individuals in an otherwise non-interacting group may spread, propagating change in the global coordination dynamics and interaction of an entire crowd. Dynamical systems analyses, such as Recurrence Quantification Analysis (RQA), can shed light on some of the underlying coordination dynamics of multi-agent human interaction. We used RQA to examine the coordination dynamics of a performance of "Welcome to the Imagination World", composed for wind orchestra. This performance enacts a real-life simulation of the transition from uncoordinated, non-interacting individuals to a coordinated, interacting multi-agent group. Unlike previous studies of social interaction in musical performance which rely on different aspects of video and/or acoustic data recorded from each individual, this project analyzes group-level coordination patterns solely from the group-level acoustic data of an audio recording of the performance. Recurrence and stability measures extracted from the audio recording increased when musicians coordinated as an interacting group. Variability in these measures also increased, indicating that the interacting ensemble of musicians were able to explore a greater variety of behavior than when they performed as non-interacting individuals. As an orchestrated (non-emergent) example of coordination, we believe these analyses provide an indication of approximate expected distributions for recurrence patterns that may be measurable before and after truly emergent coordination.
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Affiliation(s)
- Shannon Proksch
- Cognitive and Information Sciences, University of California-Merced, Merced, USA.
| | - Majerle Reeves
- Applied Mathematics, University of California-Merced, Merced, USA
| | - Michael Spivey
- Cognitive and Information Sciences, University of California-Merced, Merced, USA
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7
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Armitano-Lago C, Pietrosimone B, Evans-Pickett A, Davis-Wilson H, Franz JR, Blackburn T, Kiefer AW. Cueing Changes in Peak Vertical Ground Reaction Force to Improve Coordination Dynamics in Walking. J Mot Behav 2022; 54:125-134. [PMID: 34148523 PMCID: PMC8722397 DOI: 10.1080/00222895.2021.1929810] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
AbstractsBiofeedback has been effectively implemented to improve the mediation and distribution of joint loads during gait, however, the inability to effectively coordinate lower limb movement by altering loading patterns may increase pathological stress and risk of injury and deleterious joint changes. This study examined the influence cueing an increase or decrease in lower extremity loading has on inter- and intralimb joint coordination during gait, applied herein for 12 persons following anterior cruciate ligament reconstruction across three loading conditions (control, high, and low). Visual biofeedback was presented on a screen via a force-measuring treadmill with targeted changes prescribed based on stride-to-stride peak vertical ground reaction forces bilaterally. The pattern and stability of coordination dynamics among each of the ankle, hip and knee joint pairs were assessed via discrete relative phase and cross-recurrence quantification analyses for each condition. High and low loading altered the pattern and stability of intralimb coordination; low loading led to decreased coordination stability (20° greater than control condition) and high loading resulted in a more tightly coupled coordination pattern (higher %CDET). With thoughtful consideration for movement control, biofeedback can be used to target mechanisms leading to long-term deleterious joint adaptations.
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Affiliation(s)
- Cortney Armitano-Lago
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Brian Pietrosimone
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Alyssa Evans-Pickett
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Hope Davis-Wilson
- Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Jason R. Franz
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC and North Carolina State University, Raleigh, NC
| | - Troy Blackburn
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Adam W. Kiefer
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC
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8
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Griffioen RE, van der Steen S, Verheggen T, Enders-Slegers MJ, Cox R. Changes in behavioural synchrony during dog-assisted therapy for children with autism spectrum disorder and children with Down syndrome. JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES 2019; 33:398-408. [PMID: 31809563 DOI: 10.1111/jar.12682] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 09/27/2019] [Accepted: 10/24/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Dog-assisted therapy (DAT) is hypothesized to help children with autism spectrum disorder (ASD) and Down syndrome (DS). METHODS The present authors compared synchronous movement patterns of these children (n = 10) and their therapy dogs during the first and last session of a DAT programme, and their post-therapy changes in emotional and behavioural problems. RESULTS The present authors found a significant increase in synchrony between child and therapy dog over time. Exploratory analyses suggest more synchrony between children with ASD and their therapy dogs, compared to the children with DS. CONCLUSIONS This study is the first to test the synchrony hypothesis, shedding light upon a mechanism that may underlie the effect of DAT and how this may be different for children with ASD and DS.
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Affiliation(s)
- Richard Eric Griffioen
- Section Anthrozoology, Faculty of Psychology and Educational Sciences, Open University of the Netherlands, Heerlen, The Netherlands
| | - Steffie van der Steen
- Department of Special Needs Education and Youth Care, Faculty of Behavioural and Social Sciences, University of Groningen, Groningen, The Netherlands
| | - Theo Verheggen
- Faculty of Psychology and Educational Sciences, Open University of the Netherlands, Heerlen, The Netherlands
| | - Marie-Jose Enders-Slegers
- Section Anthrozoology, Faculty of Psychology and Educational Sciences, Open University of the Netherlands, Heerlen, The Netherlands
| | - Ralf Cox
- Department of Psychology, Faculty of Behavioural and Social Sciences, University of Groningen, Groningen, The Netherlands
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9
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Griffioen R, van der Steen S, Cox RFA, Verheggen T, Enders-Slegers MJ. Verbal Interactional Synchronization between Therapist and Children with Autism Spectrum Disorder during Dolphin Assisted Therapy: Five Case Studies. Animals (Basel) 2019; 9:E716. [PMID: 31554243 PMCID: PMC6826430 DOI: 10.3390/ani9100716] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 09/04/2019] [Accepted: 09/17/2019] [Indexed: 12/16/2022] Open
Abstract
Synchronizing behaviors in interactions, such as during turn-taking, are often impaired in children with Autism Spectrum Disorder. Therapies that focus on turn-taking generally lead to increased social skills, less interruptions, and silent pauses, however a positive non-demanding environment is therefore thought to be beneficial. Such an environment can be achieved by incorporating animals into therapy. Our study was guided by the following research questions: (1) How can we characterize the interaction between child and therapist during dolphin-assisted therapy, with regard to synchrony in verbalizations (turn-taking) and (2) does synchrony change over the course of six sessions of therapy? To answer these questions, we performed a cross-recurrence quantification analysis on behavioral data of five children, to give a detailed view of the interaction between therapist and child in the context of dolphin-assisted therapy. We were able to detect synchrony (i.e., adequate turn-taking) in all dyads, although not all children improved equally. The differences might be explained by a delayed reaction time of some children, and their level of language development.
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Affiliation(s)
- Richard Griffioen
- Department of Psychology and Education, Open University of the Netherlands, 6419 AT Heerlen, The Netherlands.
| | - Steffie van der Steen
- Department of Special Needs Education and Youth Care, University of Groningen, 9712 TS Groningen, The Netherlands.
| | - Ralf F A Cox
- Department of Psychology, University of Groningen, 9712 TS Groningen, The Netherlands.
| | - Theo Verheggen
- Department of Psychology and Education, Open University of the Netherlands, 6419 AT Heerlen, The Netherlands.
| | - Marie-Jose Enders-Slegers
- Department of Psychology and Education, Open University of the Netherlands, 6419 AT Heerlen, The Netherlands.
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10
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Haworth J, Stergiou N. Orderliness of Visual Stimulus Motion Mediates Sensorimotor Coordination. Front Physiol 2018; 9:1441. [PMID: 30364253 PMCID: PMC6193058 DOI: 10.3389/fphys.2018.01441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 09/21/2018] [Indexed: 11/13/2022] Open
Abstract
We explored the coupling of gaze and postural sway to the motion of a visual stimulus, to further understand sensorimotor coordination. Visual stimuli consisted of a horizontally oscillating red dot, moving with periodic (sine), chaotic, or aperiodic (brown noise) temporal structure. Cross Recurrence Quantification Analysis (cRQA) was used to investigate the coupling between each measured signal with the time series of the visual stimulus position. The cRQA parameter of percent determinism indicated similar strength of coupling of gaze with either periodic or chaotic motion structures, yet weaker coupling to aperiodic stimulus motion. The cRQA parameter of Maxline indicated a particular affinity toward chaotic motion. Analysis of postural coupling supports the idea that the complex periodicity of body sway affords interactivity with non-simple environmental dynamics. These results collectively strengthen the argument that chaos is an invariant and beneficial feature of biological motion, a feature which may be critical for immediate and robust coordination of the self with the environment and other environmental agents.
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Affiliation(s)
- Joshua Haworth
- Department of Kinesiology, Science and Learning Center, Whittier College, Whittier, CA, United States.,Department of Biomechanics, University of Nebraska Omaha, Omaha, NE, United States.,Department of Environmental, Agricultural & Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, NE, United States
| | - Nicholas Stergiou
- Department of Environmental, Agricultural & Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, NE, United States.,Division of Biomechanics and Research Development, College of Education, University of Nebraska Omaha, Omaha, NE, United States.,Department of Biomechanics, University of Nebraska Omaha, Omaha, NE, United States
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11
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van Opstal AAMD, Benerink NH, Zaal FTJM, Casanova R, Bootsma RJ. Information-Based Social Coordination Between Players of Different Skill in Doubles Pong. Front Psychol 2018; 9:1731. [PMID: 30283383 PMCID: PMC6156536 DOI: 10.3389/fpsyg.2018.01731] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 08/27/2018] [Indexed: 11/13/2022] Open
Abstract
We studied how teams of two players of different skill level intercepted approaching balls in the doubles-pong task. In this task, the two players moved their on-screen paddles along a shared interception axis, so that the approaching ball was intercepted by one of the paddles and that the paddles did not collide. Earlier work revealed the presence of a fuzzy division of interception space, with a boundary between interception domains located in the space between the two initial paddle positions. In the present study, using the performance of the players in their individual training sessions, we formed teams of players of varying skill level. We considered two accounts of how this boundary should be understood. In a first account, the players have shared knowledge of this boundary. Based on the side of the boundary at which the approaching ball will cross the interception axis, the players would decide whose paddle is to make the interception. Under this account, we expected that a better-skilled player would take responsibility for a larger interception domain, leading to a boundary closer to the lesser-skilled player. However, our analyses did not reveal any systematic effect of skill difference on the location (or degree of fuzziness) of the boundary: location of boundaries and overlap of interception domains varied over teams but were not systematically related to skill differences between team members. We did find effects of ball speed and approach angle. In a second account, the boundary emerges from (information-driven) player–player–ball interactions. An action-based model consistent with this account was able to capture all the patterns in boundary positions and overlaps that we observed. We conclude that the interception patterns that players demonstrate in the doubles-pong task are best understood as emerging from the unfolding of the dynamics of the system of the two players and the ball, coupled through information.
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Affiliation(s)
- A A M Daphne van Opstal
- Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.,Institut des Sciences du Mouvement, Aix-Marseille Université, CNRS, Marseille, France
| | - Niek H Benerink
- Institut des Sciences du Mouvement, Aix-Marseille Université, CNRS, Marseille, France
| | - Frank T J M Zaal
- Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Remy Casanova
- Institut des Sciences du Mouvement, Aix-Marseille Université, CNRS, Marseille, France
| | - Reinoud J Bootsma
- Institut des Sciences du Mouvement, Aix-Marseille Université, CNRS, Marseille, France
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12
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Hasanbarani F, Reschechtko S, Latash ML. Performance drifts in two-finger cyclical force production tasks performed by one and two actors. Exp Brain Res 2018; 236:779-794. [PMID: 29335750 DOI: 10.1007/s00221-018-5179-5] [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: 11/07/2017] [Accepted: 01/11/2018] [Indexed: 10/18/2022]
Abstract
We explored changes in the cyclical two-finger force performance task caused by turning visual feedback off performed either by the index and middle fingers of the dominant hand or by two index fingers of two persons. Based on an earlier study, we expected drifts in finger force amplitude and midpoint without a drift in relative phase. The subjects performed two rhythmical tasks at 1 Hz while paced by an auditory metronome. One of the tasks required cyclical changes in total force magnitude without changes in the sharing of the force between the two fingers. The other task required cyclical changes in the force sharing without changing total force magnitude. Subjects were provided with visual feedback, which showed total force magnitude and force sharing via cursor motion along the vertical and horizontal axes, respectively. Further, visual feedback was turned off, first on the variable that was not required to change and then on both variables. Turning visual feedback off led to a mean force drift toward lower magnitudes while force amplitude increased. There was a consistent drift in the relative phase in the one-hand task with the index finger leading the middle finger. No consistent relative phase drift was seen in the two-person tasks. The shape of the force cycle changed without visual feedback reflected in the lower similarity to a perfect cosine shape and in the higher time spent at lower force magnitudes. The data confirm findings of earlier studies regarding force amplitude and midpoint changes, but falsify predictions of an earlier proposed model with respect to the relative phase changes. We discuss factors that could contribute to the observed relative phase drift in the one-hand tasks including the leader-follower pattern generalized for two-effector tasks performed by one person.
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Affiliation(s)
- Fariba Hasanbarani
- Department of Kinesiology, The Pennsylvania State University, Rec.Hall-267, University Park, PA, 16802, USA.,Department of Motor Behavior, Motor Control and Learning Group, University of Tehran, Tehran, Iran
| | - Sasha Reschechtko
- Department of Kinesiology, The Pennsylvania State University, Rec.Hall-267, University Park, PA, 16802, USA
| | - Mark L Latash
- Department of Kinesiology, The Pennsylvania State University, Rec.Hall-267, University Park, PA, 16802, USA.
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