%0 Journal Article %1 Mutsaarts2007 %A Mutsaarts, Marcel %A Steenbergen, Bert %A Bekkering, Harold %D 2007 %J Neuropsychologia %K Adolescent; Adult; Cerebral Palsy; Discrimination Learning; Dominance, Cerebral; Female; Functional Laterality; Hemiplegia; Humans; Imagination; Male; Orientation; Pattern Recognition, Visual; Psychomotor Performance; Reaction Time %N 4 %P 853--859 %R 10.1016/j.neuropsychologia.2006.08.020 %T Impaired motor imagery in right hemiparetic cerebral palsy. %U http://dx.doi.org/10.1016/j.neuropsychologia.2006.08.020 %V 45 %X It is generally assumed that movements of a part of the body (e.g., hands) are simulated in motor imagery (MI) tasks. This is evidenced by a linear increase in reaction time as a function of the angular rotation of the stimulus. Under the assumption that MI plays a critical role for anticipatory motor planning, which is known to be impaired in individuals with right hemiparetic cerebral palsy (right HCP; left congenital brain damage), but to a lesser extent in individuals with left HCP, we hypothesized that MI is impaired in the participants with right HCP. In the present study, 8 participants with right and 11 participants with left congenital brain damage and 9 neurologically healthy controls were presented with two MI tasks to study this supposed relation between hemispheric processes and behaviour. Participants were instructed to make a laterality judgment on the basis of displayed pictures of hands (either holding a hammer or not) presented in different orientations. For both the control group and the left HCP group, a linear increase in reaction time as a function of angle of rotation was found. Interestingly, no such relationship was observed for the right HCP group, suggesting a disorder in MI for these participants. Collectively, these findings provide new insights into the cause of the anticipatory planning deficits in right HCP individuals.

@article{Mutsaarts2007, abstract = {It is generally assumed that movements of a part of the body (e.g., hands) are simulated in motor imagery (MI) tasks. This is evidenced by a linear increase in reaction time as a function of the angular rotation of the stimulus. Under the assumption that MI plays a critical role for anticipatory motor planning, which is known to be impaired in individuals with right hemiparetic cerebral palsy (right HCP; left congenital brain damage), but to a lesser extent in individuals with left HCP, we hypothesized that MI is impaired in the participants with right HCP. In the present study, 8 participants with right and 11 participants with left congenital brain damage and 9 neurologically healthy controls were presented with two MI tasks to study this supposed relation between hemispheric processes and behaviour. Participants were instructed to make a laterality judgment on the basis of displayed pictures of hands (either holding a hammer or not) presented in different orientations. For both the control group and the left HCP group, a linear increase in reaction time as a function of angle of rotation was found. Interestingly, no such relationship was observed for the right HCP group, suggesting a disorder in MI for these participants. Collectively, these findings provide new insights into the cause of the anticipatory planning deficits in right HCP individuals.}, added-at = {2014-07-19T20:49:42.000+0200}, author = {Mutsaarts, Marcel and Steenbergen, Bert and Bekkering, Harold}, biburl = {https://www.bibsonomy.org/bibtex/293ae980d36a9f010ba8303d7cf1812f8/ar0berts}, doi = {10.1016/j.neuropsychologia.2006.08.020}, groups = {public}, interhash = {3121c465fb36d0c14332767a802a0d1f}, intrahash = {93ae980d36a9f010ba8303d7cf1812f8}, journal = {Neuropsychologia}, keywords = {Adolescent; Adult; Cerebral Palsy; Discrimination Learning; Dominance, Cerebral; Female; Functional Laterality; Hemiplegia; Humans; Imagination; Male; Orientation; Pattern Recognition, Visual; Psychomotor Performance; Reaction Time}, month = Mar, number = 4, pages = {853--859}, pii = {S0028-3932(06)00335-6}, pmid = {17046033}, timestamp = {2014-07-19T20:49:42.000+0200}, title = {Impaired motor imagery in right hemiparetic cerebral palsy.}, url = {http://dx.doi.org/10.1016/j.neuropsychologia.2006.08.020}, username = {ar0berts}, volume = 45, year = 2007 }