Figure 2.

Time‐frequency analysis of γ‐oscillations relative to “the onset of button‐press” in Patient 10 with a diagnosis of MR nonlesional focal epilepsy. “Gamma‐range amplitudes” at the onset of button‐press using the left hand (A and B) and the right hand (C and D) are shown. “Gamma‐range amplitudes” were increased in each Rolandic area, to a greater extent, when the hand contralateral to the recorded hemisphere was used for motor‐responses. It also seems as if the left‐hand movement elicited rather bilateral γ‐augmentation, whereas the right‐hand movement elicited unilateral γ‐augmentation confined to the left Rolandic area. [Color figure can be viewed in the online issue, which is available at wileyonlinelibrary.com.]