Movement Speed and Accuracy in Space and Time: The Complementarity of Error Distributions

Pacheco, Matheus M.; Hsieh, Tsung-Yu; Newell, Karl M.

doi:10.1080/00222895.2018.1425661

Cited by 5 publications

(10 citation statements)

References 35 publications

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“…The only way to understand the individual SAT relation would be by considering also the other moments of both spatial and temporal errors. Indeed, this was what Pacheco et al (13) demonstrated (see also (14)).…”

Section: Introductionsupporting

confidence: 53%

“…Interestingly, its underlying processes and influential factors are far from being totally unraveled. In the present manuscript, we encompassed the views from Guiard and Rioul (5) and Hancock and Newell (6) to understand the individual intrinsic tendencies in SAT (see also (13)). A main issue is that such tendencies would not be easy to identify if they were simply a "bias" due to recent experiences (transient changes).…”

Section: Discussionmentioning

confidence: 99%

“…This is the case because they only considered variability of the data, not how much individuals deviate from target (the average spatial and temporal errors). Despite such variability potentially implying how individual capacities are being defiedhow difficult is it for the system to be consistent in the taskit fails to consider how individuals adjust other moments of errors to compensate variability (13) and how much they act to correct such errors (22). Thus, despite an interesting possibility, future research should focus on how to quantify and test the possibility of SAT sweet spots.…”

Section: Discussionmentioning

confidence: 99%

“…To test whether such preference is robust for each individual is the goal of the present paper. As we are aware, Pacheco et al (13) could only provide evidence for the complementarity principlethere was no evidence that the same individual always emphasize a given SAT strategy through all SAT manipulations.…”

Section: Introductionmentioning

confidence: 85%

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Consistent Individual Tendencies in Motor Speed-Accuracy Trade-Off

Pacheco¹,

Lafe²,

Chen³

et al. 2021

Preprint

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The literature of Speed-Accuracy Trade-Off (SAT) in motor control has evidenced individuality in the preference to trade different aspects (mean, variance) of spatial and temporal errors. Nonetheless, to the best of our knowledge, how robust this preference is has not been properly tested. Thirty participants performed nine conditions with different time and spatial criteria over two days (scanning). In-between these scanning conditions, individuals performed a practice condition that required modifications of the individuals’ preferences in SAT. Through Bayesian analyses, we found that, despite individuals demonstrating changes during practice, decreasing movement time, they did not modify how they performed the scanning conditions. This is evidence for a robust SAT individual tendency. We discuss how such individuality could modify how individuals perform within/between SAT criteria, and what this means for interpretation of results.

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Section: Introductionsupporting

confidence: 53%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 85%

See 2 more Smart Citations

Consistent Individual Tendencies in Motor Speed-Accuracy Trade-Off

Pacheco¹,

Lafe²,

Chen³

et al. 2021

Preprint

Self Cite

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“…Provided the unique case where velocity is free to vary, the timing of release would determine the success of each throw (see also Cohen and Sternad, 2012; Zhang et al, 2018). This could have modified the expected increased-velocity-increased-variability relation (see Pacheco et al, 2019).…”

Section: Investigating Skill Acquisition (Change) As Searchmentioning

confidence: 97%

Search Strategies in the Perceptual-Motor Workspace and the Acquisition of Coordination, Control, and Skill

2019

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In this paper we re-visit and elaborate-on the theoretical framework of learning as searching within the perceptual-motor workspace for a solution to the task. The central focus is the nature of search strategies to locate and create stable equilibrium regions in the perceptual-motor workspace and how these strategies relate to the emergent movement forms in the acquisition of coordination, control, and skill. In the ecological theory of perception and action, the enhanced stability of performance occurs through the attunement of the perceptual systems to the task dynamics together with modifications of action as task and intrinsic dynamics cooperate and/or compete. Thus, through practice in this search process, individuals adapt to the pick-up of task relevant perceptual variables and change their movement form according to the stability of the performed action and its outcome in relation to the task demands. Contemporary experimental findings have revealed features of the search process given the interaction of individual intrinsic dynamics in the context of task requirements and principles that drive the change – e.g., exploitation of more tolerant task-space solutions and emergence of compensatory mechanisms. Finally, we outline how the search strategy framework relates to traditional learning-related phenomena: including the dynamical pathways of learning, learning curves, factors of learning, individuality, motor development, and sport and rehabilitation interventions.

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Topical Review: Understanding Vision Impairment and Sports Performance through a Look at Paralympic Classification

2021

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SIGNIFICANCE: To provide meaningful competition that is equitable for Paralympic athletes, classification systems are vital to determine which athletes are eligible to compete in adapted forms of sports and to group athletes for competition. Our discussion has important implications to inform how we should approach visual function assessment in sports performance.Sport participation positively benefits individuals with low vision. In particular, adapted sports exist to provide people with visual disabilities an avenue for participating in recreational activity. High-performance low-vision athletes can participate in Paralympic sports but need to be properly classified based on the severity of their vision impairment. The model for Paralympic classification was initiated by Sir Ludwig Guttmann in 1952 in a rehabilitation clinic for soldiers with spinal cord injuries. Today, the International Paralympic Committee mandates that international sports federations develop evidence-based sport-specific classification systems to ensure that eligible disabled athletes have an opportunity for meaningful competition. With the current classification system, only visual acuity and visual field measures are considered to determine an athlete's eligibility to compete, leaving room to expand our understanding of visual function requirements for individual sports. In this topical review, we discuss the origins of Paralympic sports, limitations of current classification methods, and requirements toward achieving evidence-based sport-specific evaluation systems.

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Movement Speed and Accuracy in Space and Time: The Complementarity of Error Distributions

Cited by 5 publications

References 35 publications

Consistent Individual Tendencies in Motor Speed-Accuracy Trade-Off

Consistent Individual Tendencies in Motor Speed-Accuracy Trade-Off

Search Strategies in the Perceptual-Motor Workspace and the Acquisition of Coordination, Control, and Skill

Topical Review: Understanding Vision Impairment and Sports Performance through a Look at Paralympic Classification

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