Event-Related Slow Potential(3)-Comparison Normal Subjects with Brain Injured Subjects-

脳卒中の患者10名と正常な対照者22名の手指運動時の運動関連電位を記録し，検討を行った。得られたおもな結果は，（1）対照群において対側半球上において同側半球上よりも電位の出現が有意に早く，電位の大きさも有意に大きかった。（2）脳卒中群では電位の出現時期においても電位の大きさにおいても対側（健側）と同側（病側）の間に有意差はなかった。（3）電位の出現時期については対照群が脳卒中群よりも有意に早く出現したが，電位の大きさについて両者の間に有意差はなかった。（4）脳硬塞による脳卒中の患者の波形は正常なものが多く，異常があってもその程度は軽かった。（5）脳内出血による脳卒中の患者の波形には異常なものが多く，とくに病側半球上の電位が抑制されていた。Movement-associated cerebral potentials(MACPs)by switch pressing was obtained from 10 cerebral apoplectic subjects and 22 normal subjects.EEG potentials were induced from C_3 and C_4 of the scalp.Main results were as follows;1)MACPs appeared significantly earlier and its amplitude was significantly larger at the contralateral surface than ipsilateral surface in normal group,but there were no differences in cerebral apoplectic group.2)The onest of MACPs was appeared significantly earlier in normal group than cerebral apoplectic group.3)The shapes of MACPs were almost normal in normal group and cerebral embolismic patients.4)In apoplectic group,the shapes of MACPs were almost abnormal and amplitudes of injured hemisphere were repressed