[Electrophysiologic investigation of cerebral cortex in the subtypes of XXXX ].

@entity1 @entity304 @entity191 @entity2845 @entity400 @entity717
OBJECTIVE: Post-movement beta synchronization is an increase in EEG beta power after movement termination. Its characteristics in @entity717 are not well described. @entity191 shows unique clinical, anatomical and biochemical features. In our study we examined the relation between the laterality of @entity400 and size of post-movement beta synchronisation in @entity400 dominant @entity191 . METHODS: In a self-paced movement paradigm we measured movement duration and analyzed EEG power changes at movement-reactive beta frequencies. RESULTS: Movement duration was significantly longer in @entity304 - @entity1 than in controls (0.49 +/- 0.170 s, 0.35 +/- 0.087 s, p = 0.013, Mann-Whitney test). There was no difference between the two hands in the control group (0.36 +/- 0.078 s, 0.34 +/- 0.099 s, p = 0.207, Wilcoxon-test), while @entity304 @entity1 performed longer movement with their left hand (0.52 +/- 0.195 s, 0.46 +/- 0.148 s, p = 0.049, Wilcoxon), unrelated to the side of @entity400 . In controls, post-movement beta synchronisation contralateral to the movement was not significantly different after right and left hand movement (108.1 +/- 68.21% and 92.1 +/- 23.43%, p = 0.78 Wilcoxon). In @entity304 @entity1 post-movement beta synchronisation was significantly smaller contralateral to the @entity717 (36.9 +/- 47.79%, 104.7 +/- 91.42%, p = 0.012, Wilcoxon-test). The post-movement beta synchronisation showed anterior shifting in @entity304 - @entity1 . CONCLUSIONS: In @entity400 dominant @entity191 the asymmetric decrease of post-move beta synchronisation is related to the laterality of @entity400 rather than @entity2845 . Analysis of this phenomena might provide further insight to the pathophysiology of @entity191 .
