Figure 6. Cortical activation of sensory regions spreads medially. A, Montages show examples of cortical activity at time of HLS1,R (top) and a HLS1,L activation (bottom). At the left of the montages, ongoing correlation with sensory templates is shown. Gray region denotes times represented in montages. Panels at the right of the montages show instantaneous position of center of burst at 40 ms intervals; green dot denotes position at burst onset, and red dot denotes position at burst end. B, Top, mean images showing VSD signal before, during, and after bursts of VSD activity that were correlated with their corresponding sensory templates. Bursts were included if they had a correlation above 0.3 with their corresponding sensory template. Bottom, VSD signal along a medial–lateral (black) and an anterior–posterior (gray) axis through the center of the sensory cortex. Lines representing these axes are shown in top panels. C, Top, VSD signal intensity at eight spatial points 0.975 mm from the point of initial activation, at three time points, after stimulation. Spatial points are shown in the rightmost image, top panel, of Figure 6A. L-M, Lateral–medial axis; P-A, posterior–anterior axis; PM-AL, posterior–medial to anterior–lateral axis; AM-ML, anterior–medial to posterior–lateral axis. Bottom, as described for the top, expect for bursts correlated with tail template. A, Anterior; L, lateral; P, posterior; M, medial.