Quantitative evaluation of mirror movements in adults with focal brain lesions.

摘要: Mirror movements (MM), involuntary of homologous muscles opposite to unilateral limb activity, decrease in the course motor development, but may reappear adults after brain damage. To better characterize this type acquired MM, grip forces 36 healthy subjects and 35 patients suffering from focal lesions were compared. Holding force transducers a pinch between thumb index fingers each hand, had repeatedly change one whilst other (mirror) hand just prevent manipulandum dropping. In second task, changes be produced either symmetric or an antiparallel manner. No significant group differences controls extent coupling found. During unimanual squeezing, only six co-activation pathologic range. Whilst performing bimanual asymmetric changes, was seen five patients. association found presence MM clinical neuroanatomical features. Brain seem rarely associated with MM. They might non-specific not related characteristics lesion.