Hand preference influences neural correlates of action observation
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SourceBrain Research, 1269, (2009), pp. 90-104
Article / Letter to editor
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SW OZ DCC BO
SW OZ DCC CO
SW OZ NICI BO
SW OZ NICI CO
SubjectAction, intention, and motor control; DI-BCB_DCC_Theme 2: Perception, Action and Control
It has been argued that we map observed actions onto our own motor system. Here we added to this issue by investigating whether hand preference influences the neural correlates of action observation of simple, essentially meaningless hand actions. Such an influence would argue for an intricate neural coupling between action production and action observation, which goes beyond effects of motor repertoire or explicit motor training, as has been suggested before. Indeed, parts of the human motor system exhibited a close coupling between action production and action observation. Ventral premotor and inferior and superior parietal cortices showed differential activation for left- and right-handers that was similar during action production as well as during action observation. This suggests that mapping observed actions onto the observer's own motor system is a core feature of action observation - at least for actions that do not have a clear goal or meaning. Basic differences in the way we act upon the world are not only reflected in neural - correlates of action production, but can also influence the brain basis of action observation.
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