A set of different algorythms was involved to analyze the anomalous motor control in four young hemi-paretic patients with pre- and perinatally acquired brain lesions. The effects of a peculiar cerebral reorganization allow the patients to move the paretic arm. Patients performed a pinch grip using their paretic and non-paretic hands alternatively. EMG was simultaneously recorded as a basis for coherence calculations. 3D coherence mapping was performed in the β frequency range. Such approach evidenced the relocation of motor functions from the lesioned (left) to the contralesional (right) hemisphere. While in case of left, non-paretic pinch grip, coherent activity originated from contralateral (right) M1 exclusively, right (paretic) grip, produced coherent activity in ipsilateral M1 as well as significant coherence of ipsilateral cerebellum. Coupling direction analysis demonstrated that throughout pinch grip the coupling direction goes from M1 to cerebellum. © 2007 IEEE.
From where to how: assessing mechanisms of neural plasticity in patients with unilateral brain lesions / Belardinelli, P., Ciancetta, L., Braun, C., Staudt, M., Pizzella, V., Londei, A., Birbaumer, N., Romani, G.l.. - (2007), pp. 362-364. (2007 Joint Meeting of the 6th International Symposium on Noninvasive Functional Source Imaging of the Brain and Heart and the International Conference on Functional Biomedical Imaging, NFSI and ICFBI 2007 Huangzou 25/09/2008) [10.1109/NFSI-ICFBI.2007.4387776].
From where to how: assessing mechanisms of neural plasticity in patients with unilateral brain lesions
Belardinelli P;
2007-01-01
Abstract
A set of different algorythms was involved to analyze the anomalous motor control in four young hemi-paretic patients with pre- and perinatally acquired brain lesions. The effects of a peculiar cerebral reorganization allow the patients to move the paretic arm. Patients performed a pinch grip using their paretic and non-paretic hands alternatively. EMG was simultaneously recorded as a basis for coherence calculations. 3D coherence mapping was performed in the β frequency range. Such approach evidenced the relocation of motor functions from the lesioned (left) to the contralesional (right) hemisphere. While in case of left, non-paretic pinch grip, coherent activity originated from contralateral (right) M1 exclusively, right (paretic) grip, produced coherent activity in ipsilateral M1 as well as significant coherence of ipsilateral cerebellum. Coupling direction analysis demonstrated that throughout pinch grip the coupling direction goes from M1 to cerebellum. © 2007 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
