Fig. (2).
SAM pseudo-T images corresponding to mu and beta ERD associated with left and right sided foot movements in a 42-year old male (patient 16) with a right-sided oligodendroglioma (WHO grade II) in close relation to the precentral gyrus. The ERD areas (blue) show a bilateral and heterotopic distribution for mu and beta rhythms after left-sided (affected) foot movements corresponding to the area of hand representation. Right-sided foot movements show a more diffuse ERD associated with hand and foot representation.