Emergent perception–action couplings regulate postural adjustments during performance of externally-timed dynamic interceptive actions

Stone, Joseph; Maynard, Ian; North, Jamie S.; Panchuk, Derek; Davids, Keith

doi:10.1007/s00426-014-0613-1

Cited by 10 publications

(4 citation statements)

References 40 publications

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“…acceleration and deceleration). The dependency to condition also occurred for PC 3 when the opposition condition afforded a different perceptual attunement for the performers to re-calibrate the movement pattern (Stone, et al, 2015b). In fact, instead of contribution in racket-ball contact time, it was used for loading the racket arm prior to contact.…”

Section: Discussionmentioning

confidence: 99%

“…environment or task) represents the behavioural setting in which the action is intended to apply (Hammond & Stewart, 2001). One aspect of adaptation relates to changes in segment kinematics in response to environmental factors such as opponents and equipment, in both selfpaced (Rein et al, 2009;Kim, et al, 2010) and externally-paced motor skills (Stone, Maynard, North, Panchuk, & Davids, 2015a;Panchuk, Davids, Sakadjian, MacMahon, & Parrington 2013;Stone, Maynard, North, Panchuk, & Davids, 2015b). In summary, the adaptations to environmental situations require changing the kinematic configurations of active limbs in both self-paced and externallypaced skills to achieve successful outcomes.…”

Section: Introductionmentioning

confidence: 99%

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Effect of environmental constraints on multi-segment coordination patterns during the tennis service in expert performers

Shafizadeh

Bonner

Fraser

et al. 2018

Journal of Sports Sciences

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The aims of this study were to examine the effect of different environmental constraints on kinematic multi-segment coordination patterns during the service and its coordination with service time variability. Ten expert tennis players (Age: 34.1±5.3) volunteered to take part in this study. Participants served 30 times in 3 different conditions: control, target and opposition. The order of conditions was counterbalanced between participants. A wireless 3D motion capture system (STT Co, Spain) was used to measure 7 joint motions, with a 17 degrees of freedom biomechanical model created to capture the entire service action. Results of the principal component analysis showed that 4 synergies were created; however, their roles were changed relative to the perception of the environment. The results of repeated-measures analysis of variance did not show any significant difference on total variance and individual principal components between conditions; however, one synergy pattern significantly predicted the service time variability in both control and opposition conditions. In conclusion, the findings demonstrated that expert performers reduce the joint dimensionality by creating functional synergies in different phases of service and adapt the service action according to the perception of the environment.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of environmental constraints on multi-segment coordination patterns during the tennis service in expert performers

Shafizadeh

Bonner

Fraser

et al. 2018

Journal of Sports Sciences

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“…It also underlies the performance of highly complex motor skills such as those classically encountered in sports ( Yiou et al, 2018 ). “Posture” can be defined as the relative position of body segments, and “balance” corresponds to a state where the external forces and moments acting on the body compensate each other (e.g., Bouisset and Do, 2008 ; Stone et al, 2015 ). Since the first study to date of standing posture on a mechanical platform ( Hellebrandt, 1938 ), it is well-known that a perfect state of balance is never reached during postural maintenance, as evidenced by the existence of continuous center of pressure (COP) oscillations, referred to as “postural sway.” These COP oscillations do not exceed one-centimeter square under unconstrained bipedal conditions ( Winter et al, 1997 ).…”

Section: Introductionmentioning

confidence: 99%

Sport dependent effects on the sensory control of balance during upright posture: a comparison between professional horseback riders, judokas and non-athletes

Viseu,

Yiou,

Morin

et al. 2023

Front. Hum. Neurosci.

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IntroductionCompared to judokas (JU) and non-athletes (NA), horseback riders (HR) may develop specific changes in their sensory control of balance.MethodsThirty-four international-level JU, twenty-seven international-level HR and twenty-one NA participated. Participants stood upright on a plateform (static condition) or on a seesaw device with an instability along the mediolateral (ML) or the anteroposterior (AP) direction (dynamic conditions). These conditions were carried out with eyes opened (EO) or closed (EC), and with (wF) or without a foam (nF). Experimental variables included conventional (linear), non-linear center-of-pressure (COP) parameters, Romberg Quotient (RQ) and Plantar Quotient (PQ).ResultsGroup effects. COP Surface (COPS) and standard deviation of COP along AP (SDY) were lower in HR than in JU in Static. SD Y was lower in HR than in JU in Dynamic AP. COP velocity (COPV) was lower in both HR and JU than in NA in Static and Dynamic. Sample entropy along AP and ML (SampEnY and SampEnX) were higher in HR than in JU in Static. SampEnY was higher in HR than in JU in Dynamic ML. Sensory effects. In EC, COPV was lower in JU than in NA in Dynamic AP, and lower in JU than in both HR and NA in Dynamic ML. In EO, COPV was lower in both JU and HR than in NA in Dynamic ML. RQ applied to COPS was lower in JU than in both HR and NA in Dynamic AP, and lower in JU than in HR in Dynamic ML. RQ applied to COPV was lower in JU than in both HR and NA in Static and Dynamic. PQ applied to COPS was higher in JU than in both HR and NA in Dynamic ML.ConclusionResults showed that the effects of sport expertise on postural control could only be revealed with specific COP variables and were directionally oriented and sport-dependant. HR seem to rely more on vision than JU, thus revealing that the contribution of the sensory inputs to balance control is also sport-dependent. Results open up new knowledge on the specificity of sport practice on multisensory balance information during upright posture.

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“…3,11,19,21,25,26,28,29 These behaviors are often analyzed in response to changes in the task at hand (e.g., changes in rules, load, control interface sensitivity, stimulus regularity, etc.) 10,11,19,21,36 , changes in the organism (e.g., force production capacity, postural regulation, visual acuity, anxiety, fatigue, etc.) 15,19,25,26,34 , or changes in environmental constraints (e.g., altitude, temperature, etc.).…”

Section: Introductionmentioning

confidence: 99%

Intersession Reliability and Within-Session Stability of a Novel Perception-Action Coupling Task

Connaboy¹,

Johnson²,

LaGoy³

et al. 2019

aerosp med hum perform

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Traditional measures of alertness and reaction time do not capture the dynamic integration of perception and action, where some form of perceptual judgement (i.e. judgement of an object's spatial parameters in relation to another object) is required to examine this relationship. PURPOSE:To assess the reliability, within-subject variability, and systematic bias associated with a novel measure of reaction time, the perception-action coupling task (PACT). PARTICIPANTS: 9 males and 7 females (Age (yrs) = 27.8 ± 3.6) participated in four identical testing sessions. METHODS: The PACT, performed on a touch-screen tablet, requires participants to make judgements on whether a virtual ball affords "posting" in a virtual aperture, both of varying sizes. There are 8 possible ball to aperture size ratios., and aA full cycle of the PACT lasts 5 minutes and consists of 12 randomized presentations of each ratio. For each session, participants completed 9 cycles with a 15-minute break every three cycles. Reaction Time (RT), movement time (MT), and initiation time (IT) were calculated from response parameters.Accuracy of judgements (ACC) was calculated as the percentage of correct responses from each cycle. Systematic bias was determined by repeated-measures ANOVA, reliability was assessed with intra-class correlation coefficients, and within-subject variability was assessed with coefficients of variation. RESULTS: Initiation time was found to have the highest learning effect, requiring the elimination of three cycles to eliminate systematic bias (F = 2.417, p = .056). All other variables required one or less cycles (F = .408 -1.729, p = .167 -.910). All variables showed acceptable reliability (ICC = .775 -943) and within-subject variability () with only one cycle, after elimination of the first 3 cycles. CONCLUSIONS: With a 3 cycle (15-minute) familiarization period, the PACT was found to be stable and reliable in assessing RT, MT, IT and ACC during perceptual judgements.

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Emergent perception–action couplings regulate postural adjustments during performance of externally-timed dynamic interceptive actions

Cited by 10 publications

References 40 publications

Effect of environmental constraints on multi-segment coordination patterns during the tennis service in expert performers

Effect of environmental constraints on multi-segment coordination patterns during the tennis service in expert performers

Sport dependent effects on the sensory control of balance during upright posture: a comparison between professional horseback riders, judokas and non-athletes

Intersession Reliability and Within-Session Stability of a Novel Perception-Action Coupling Task

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