Corrections in grasp posture in response to modifications of action goals

Hughes C, Seegelke C, Spiegel MA, Oehmichen C, Hammes J, Schack T (2012)
PLoS ONE 7(9): e43015.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
Alternativer Titel
Grasp corrections in response to goal modification
Abstract / Bemerkung
There is ample evidence that people plan their movements to ensure comfortable final grasp postures at the end of a movement. The end-state comfort effect has been found to be a robust constraint during unimanual movements, and leads to the inference that goal-postures are represented and planned prior to movement initiation. The purpose of this study was to examine whether individuals make appropriate corrections to ensure comfortable final goal postures when faced with an unexpected change in action goal. Participants reached for a horizontal cylinder and placed the left or right end of the object into the target disk. As soon as the participant began to move, a secondary stimuli was triggered, which indicated whether the intended action goal had changed or not. Confirming previous research, participants selected initial grasp postures that ensured end-state comfort during non-perturbed trials. In addition, participants made appropriate on-line corrections to their reach-to-grasp movements to ensure end-state comfort during perturbed trials. Corrections in grasp posture occurred early or late in the reach-to-grasp phase. The results indicate that individuals plan their movements to afford comfort at the end of the movement, and that grasp posture planning is controlled via both feedforward and feedback mechanisms.
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PLoS ONE
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7
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9
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e43015
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Hughes C, Seegelke C, Spiegel MA, Oehmichen C, Hammes J, Schack T. Corrections in grasp posture in response to modifications of action goals. PLoS ONE. 2012;7(9):e43015.
Hughes, C., Seegelke, C., Spiegel, M. A., Oehmichen, C., Hammes, J., & Schack, T. (2012). Corrections in grasp posture in response to modifications of action goals. PLoS ONE, 7(9), e43015. doi:10.1371/journal.pone.0043015
Hughes, C., Seegelke, C., Spiegel, M. A., Oehmichen, C., Hammes, J., and Schack, T. (2012). Corrections in grasp posture in response to modifications of action goals. PLoS ONE 7, e43015.
Hughes, C., et al., 2012. Corrections in grasp posture in response to modifications of action goals. PLoS ONE, 7(9), p e43015.
C. Hughes, et al., “Corrections in grasp posture in response to modifications of action goals”, PLoS ONE, vol. 7, 2012, pp. e43015.
Hughes, C., Seegelke, C., Spiegel, M.A., Oehmichen, C., Hammes, J., Schack, T.: Corrections in grasp posture in response to modifications of action goals. PLoS ONE. 7, e43015 (2012).
Hughes, Charmayne, Seegelke, Christian, Spiegel, Marnie Ann, Oehmichen, Corinna, Hammes, Julia, and Schack, Thomas. “Corrections in grasp posture in response to modifications of action goals”. PLoS ONE 7.9 (2012): e43015.

8 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

Manual (a)symmetries in grasp posture planning: a short review.
Seegelke C, Hughes CM, Schack T., Front Psychol 5(), 2014
PMID: 25566153
Event-related brain potentials for goal-related power grips.
Westerholz J, Schack T, Koester D., PLoS One 8(7), 2013
PMID: 23844211
Perturbations in action goal influence bimanual grasp posture planning.
Hughes CM, Seegelke C., J Mot Behav 45(6), 2013
PMID: 24006878

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