The Brain Activity Changes during Acute Stroke using Electrocorticographic ( ECoG ) Signals on the Sensorimotor Cortex
نویسندگان
چکیده
2ECoG provides a way for real time monitoring of brain activity. However, it is still a challenge to characterize the features of ECoG after the onset of stroke. In this study, ECoG signals were collected through implanted electrodes at four different sites on the sensorimotor cortex during middle cerebral artery (MCA) occlusion. It was found that within 3 minutes after MCA occlusion, amplitudes of ECoG signal at the four electrodes decreased; while . and power increased in both the affected brain region and the unaffected side. Results demonstrated that those changes correlated with stroke severity, and provided essential information for future study to validate the feasibility of a stroke severity monitoring.
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