Altered sense of agency in children with spastic cerebral palsy

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Anina Ritterband-Rosenbaum, Mark S Christensen, Mette Kliim-Due, Line Z Petersen, Betina Rasmussen, Jens B Nielsen

ABSTRACT: Background Children diagnosed with spastic Cerebral Palsy (CP) often show perceptual and cognitive problems, which may contribute to their functional deficit. Here we investigated if altered ability to determine whether an observed movement is performed by themselves (sense of agency) contributes to the motor deficit in children with CP. Methods Three groups; 1) CP children, 2) healthy peers, and 3) healthy adults produced straight drawing movements on a pen-tablet which was not visible for the subjects. The produced movement was presented as a virtual moving object on a computer screen. Subjects had to evaluate after each trial whether the movement of the object on the computer screen was generated by themselves or by a computer program which randomly manipulated the visual feedback by angling the trajectories 0, 5, 10, 15, 20 degrees away from target. Results Healthy adults executed the movements in 310 seconds, whereas healthy children and especially CP children were significantly slower (p
Original languageEnglish
JournalB M C Neurology
Volume11
Issue number1
Pages (from-to)150 (1-12)
Number of pages12
ISSN1471-2377
DOIs
Publication statusPublished - 2011

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