Stroke: After stroke, corticospinal tract and beta shock are closely related to gait disorder

Traditionally, oscillations in the beta frequency range (≈13-30 Hz) are related to sensorimotor processing

But shockingly, there are very few data showing that brain structure is associated with oscillatory activity after a stroke

In the three key motor areas of the ipsilateral hemisphere, namely the primary motor cortex (M1), the ventral premotor area and the auxiliary motor area, the beta power at rest and the motion-related beta non-synchronization were evaluated

In this cohort , compared with the healthy control group, there was a statistically significant decrease in ipsilateral CST anisotropy, but the EEG indicators did not change

The ventral motor zone and auxiliary motor zone, especially the CST subcomponents derived from the pre-exercise cortex and auxiliary motor zone, have no similar structure-function relationship in stroke patients and the control group

These data indicate that there may be a link between the CST microstructure derived from M1 pyramidal neurons and β oscillation activity , and in previous reports, these indicators have been associated with dyskinesia in stroke patients