Figure 3.

A–F, Group-level time–frequency distributions of laser-induced LFP oscillations recorded from superficial (A, C, E) and deep (B, D, F) layers of the bilateral S1 and M1. A, B, Broadband time–frequency responses recorded from the S1 and M1 (columns) contralateral and ipsilateral to the stimulation side (rows). C, D, Time courses of the power of GBOs were obtained by averaging time–frequency responses elicited by laser stimulation at 70–100 Hz. Gray-shaded areas indicate p values (p < 0.05, FDR corrected) of the hemisphere × brain region interaction at each time point. Note that only GBOs measured from superficial cortical layers show a clear interaction in the early part of the response (100–220 ms). E, F, GBOs measured in superficial layers (100–220 ms) were larger in contralateral S1 than in contralateral M1, while similar in ipsilateral S1 and bilateral M1. No differences were observed when assessing the magnitude of GBOs measured at deep cortical layers. *p < 0.05. Error bars represent SEM.