Habitual vs Non- Habitual Manual Actions: An ERP Study on Overt Movement Execution

Westerholz J, Schack T, Schütz C, Koester D (2014)
PLoS ONE 9(4).

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Journal Article | Published | English
Abstract
This study explored the neurophysiological mechanisms underlying the planning and execution of an overt goal- related handle rotation task. More specifically, we studied the neural basis of motor actions concerning the influence of the grasp choice. The aim of the present study was to differentiate cerebral activity between grips executed in a habitual and a nonhabitual mode, and between specified and free grip choices. To our knowledge, this is the first study to differentiate cerebral activity underlying overt goal-related actions executed with a focus on the habitual mode. In a handle rotation task, participants had to use thumb-toward (habitual) or thumb- away ( non- habitual) grips to rotate a handle to a given target position. Reaction and reach times were shorter for the habitual compared to the non- habitual mode indicating that the habitual mode requires less cognitive processing effort than the non- habitual mode. Neural processes for action execution ( measured by event-related potentials ( ERPs)) differed between habitual and non-habitual conditions. We found differential activity between habitual and non- habitual conditions in left and right frontal areas from -600 to 200 ms time- locked to reaching the target position. No differential neural activity could be traced for the specification of the grip. The results suggested that the frontal negativity reflected increased difficulty in movement precision control in the non- habitual mode compared to the habitual mode during the homing in phase of grasp and rotation actions.
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Article Processing Charge funded by the Deutsche Forschungsgemeinschaft and the Open Access Publication Fund of Bielefeld University.
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Westerholz J, Schack T, Schütz C, Koester D. Habitual vs Non- Habitual Manual Actions: An ERP Study on Overt Movement Execution. PLoS ONE. 2014;9(4).
Westerholz, J., Schack, T., Schütz, C., & Koester, D. (2014). Habitual vs Non- Habitual Manual Actions: An ERP Study on Overt Movement Execution. PLoS ONE, 9(4).
Westerholz, J., Schack, T., Schütz, C., and Koester, D. (2014). Habitual vs Non- Habitual Manual Actions: An ERP Study on Overt Movement Execution. PLoS ONE 9.
Westerholz, J., et al., 2014. Habitual vs Non- Habitual Manual Actions: An ERP Study on Overt Movement Execution. PLoS ONE, 9(4).
J. Westerholz, et al., “Habitual vs Non- Habitual Manual Actions: An ERP Study on Overt Movement Execution”, PLoS ONE, vol. 9, 2014.
Westerholz, J., Schack, T., Schütz, C., Koester, D.: Habitual vs Non- Habitual Manual Actions: An ERP Study on Overt Movement Execution. PLoS ONE. 9, (2014).
Westerholz, Jan, Schack, Thomas, Schütz, Christoph, and Koester, Dirk. “Habitual vs Non- Habitual Manual Actions: An ERP Study on Overt Movement Execution”. PLoS ONE 9.4 (2014).
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