Influence of mechanical load on sequential effects

Schütz C, Schack T (2013)
Experimental Brain Research 228(4): 445-455.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
Abstract / Bemerkung
Almost two decades ago, sequential effects of human grasping behaviour were described for the first time: In a sequential task, participants persisted in using the previous grasp type. According to the plan-modification hypothesis, such sequential effects reduce the movement planning costs and occur within a limited range of indifference. In the current study, we asked whether the anticipated mechanical costs of a movement would compete with the movement planning costs and, thus, reduce the magnitude of the sequential effect. To this end, participants were tested in a sequential, perceptual-motor task (opening a column of drawers), which offered a continuous range of posture solutions for each trial. In a pre-/post-test design, the magnitude of the sequential effect was measured before and after a manipulation phase with increased mechanical costs. Participants displayed a sequential effect for the majority of drawers in the pre-test, which was significantly reduced in the post-test. This finding indicates that each executed movement is a weighted function of both its cognitive and mechanical costs. The result also implies that sequential effects do not result solely from dynamical properties of the motor system, but instead reflect computational features of the movement selection process.
Erscheinungsjahr
Zeitschriftentitel
Experimental Brain Research
Band
228
Zeitschriftennummer
4
Seite
445-455
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Schütz C, Schack T. Influence of mechanical load on sequential effects. Experimental Brain Research. 2013;228(4):445-455.
Schütz, C., & Schack, T. (2013). Influence of mechanical load on sequential effects. Experimental Brain Research, 228(4), 445-455. doi:10.1007/s00221-013-3576-3
Schütz, C., and Schack, T. (2013). Influence of mechanical load on sequential effects. Experimental Brain Research 228, 445-455.
Schütz, C., & Schack, T., 2013. Influence of mechanical load on sequential effects. Experimental Brain Research, 228(4), p 445-455.
C. Schütz and T. Schack, “Influence of mechanical load on sequential effects”, Experimental Brain Research, vol. 228, 2013, pp. 445-455.
Schütz, C., Schack, T.: Influence of mechanical load on sequential effects. Experimental Brain Research. 228, 445-455 (2013).
Schütz, Christoph, and Schack, Thomas. “Influence of mechanical load on sequential effects”. Experimental Brain Research 228.4 (2013): 445-455.

6 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

Motor hysteresis in a sequential grasping and pointing task is absent in task-critical joints.
Schütz C, Weigelt M, Schack T., Exp Brain Res 235(3), 2017
PMID: 27864596
Decisions in motion: passive body acceleration modulates hand choice.
Bakker RS, Weijer RHA, van Beers RJ, Selen LPJ, Medendorp WP., J Neurophysiol 117(6), 2017
PMID: 28250146
Frames of reference in action plan recall: influence of hand and handedness.
Seegelke C, Hughes CM, Wunsch K, van der Wel R, Weigelt M., Exp Brain Res 233(10), 2015
PMID: 26070901
Movement plans for posture selection do not transfer across hands.
Schütz C, Schack T., Front Psychol 6(), 2015
PMID: 26441734

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