A simple model to estimate the percentage of motor plan reuse from hysteresis effect size

Schütz C, Schack T (2019)
Frontiers in Psychology 10: 561.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
In sequential tasks, a partial reuse of former motor plans results in a persistence in the former posture (termed hysteresis). The cost-optimization hypothesis states that the percentage of reuse depends on the relative cognitive and mechanical cost of each movement. These costs should be constant across all drawers, yet previous studies found a larger hysteresis effect at the central drawers and declining effects toward the periphery. In the current study, we show that a simple mathematical model that assumes a sigmoid optimal grasp angle function and a fixed percentage of motor plan reuse explains the posture variance in a randomized and an ordered sequential drawer opening task. This finding indicates that (1) the optimal pro/supination angle is a sigmoid function of drawer height, (2) the percentage of motor plan reuse is constant across drawers, and (3) a constant percentage of reuse results in a larger hysteresis effect at the central drawers. Based on the model, the percentage of motor plan reuse in future studies can be estimated from the size of the motor hysteresis effect.
Erscheinungsjahr
2019
Zeitschriftentitel
Frontiers in Psychology
Band
10
Art.-Nr.
561
eISSN
1664-1078
Finanzierungs-Informationen
Article Processing Charge funded by the Deutsche Forschungsgemeinschaft and the Open Access Publication Fund of Bielefeld University.
Page URI
https://pub.uni-bielefeld.de/record/2934447

Zitieren

Schütz C, Schack T. A simple model to estimate the percentage of motor plan reuse from hysteresis effect size. Frontiers in Psychology. 2019;10: 561.
Schütz, C., & Schack, T. (2019). A simple model to estimate the percentage of motor plan reuse from hysteresis effect size. Frontiers in Psychology, 10, 561. doi:10.3389/fpsyg.2019.00561
Schütz, C., and Schack, T. (2019). A simple model to estimate the percentage of motor plan reuse from hysteresis effect size. Frontiers in Psychology 10:561.
Schütz, C., & Schack, T., 2019. A simple model to estimate the percentage of motor plan reuse from hysteresis effect size. Frontiers in Psychology, 10: 561.
C. Schütz and T. Schack, “A simple model to estimate the percentage of motor plan reuse from hysteresis effect size”, Frontiers in Psychology, vol. 10, 2019, : 561.
Schütz, C., Schack, T.: A simple model to estimate the percentage of motor plan reuse from hysteresis effect size. Frontiers in Psychology. 10, : 561 (2019).
Schütz, Christoph, and Schack, Thomas. “A simple model to estimate the percentage of motor plan reuse from hysteresis effect size”. Frontiers in Psychology 10 (2019): 561.
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2019-09-06T09:19:06Z
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