Cognitive costs of motor planning do not differ between pointing and grasping in a sequential task

Schütz C, Weigelt M, Schack T (2016)
Experimental Brain Research 234(7): 2035-2043.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
Neurophysiologic studies have shown differences in brain activation between pointing and grasping movements. We asked whether these two movement types would differ in their cognitive costs of motor planning. To this end, we designed a sequential, continuous posture selection task, suitable to investigate pointing and grasping movements to identical target locations. Participants had to open a column of drawers or point to a column of targets in ascending and descending progression. The global hand pro/supination at the moment of drawer/target contact was measured. The size of the motor hysteresis effect, i.e., the persistence to a former posture, was used as a proxy for the cognitive cost of motor planning. A larger hysteresis effect equals higher cognitive cost. Both motor tasks had similar costs of motor planning, but a larger range of motion was found for the grasping movements.
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Zeitschriftentitel
Experimental Brain Research
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234
Zeitschriftennummer
7
Seite
2035-2043
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Schütz C, Weigelt M, Schack T. Cognitive costs of motor planning do not differ between pointing and grasping in a sequential task. Experimental Brain Research. 2016;234(7):2035-2043.
Schütz, C., Weigelt, M., & Schack, T. (2016). Cognitive costs of motor planning do not differ between pointing and grasping in a sequential task. Experimental Brain Research, 234(7), 2035-2043. doi:10.1007/s00221-016-4608-6
Schütz, C., Weigelt, M., and Schack, T. (2016). Cognitive costs of motor planning do not differ between pointing and grasping in a sequential task. Experimental Brain Research 234, 2035-2043.
Schütz, C., Weigelt, M., & Schack, T., 2016. Cognitive costs of motor planning do not differ between pointing and grasping in a sequential task. Experimental Brain Research, 234(7), p 2035-2043.
C. Schütz, M. Weigelt, and T. Schack, “Cognitive costs of motor planning do not differ between pointing and grasping in a sequential task”, Experimental Brain Research, vol. 234, 2016, pp. 2035-2043.
Schütz, C., Weigelt, M., Schack, T.: Cognitive costs of motor planning do not differ between pointing and grasping in a sequential task. Experimental Brain Research. 234, 2035-2043 (2016).
Schütz, Christoph, Weigelt, Matthias, and Schack, Thomas. “Cognitive costs of motor planning do not differ between pointing and grasping in a sequential task”. Experimental Brain Research 234.7 (2016): 2035-2043.

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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

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