Figure 2.

Propagation of subthreshold wave across the transection in the slice. (A) A transection was made in the middle of the slice. Two electrodes (REC1 and REC2) were placed on both sides of the slice to monitor the propagation. The laser pulse train was applied on one side of the slice to initiate the waves. (B) The 5 Hz wave can cross the transection while the subthreshold wave can be recorded in both electrodes with the presence of the transection. The expanded window shows that the delay was observed between two waves from REC1 and REC2. (C) The 10 Hz wave can propagate through the transection. The expanded window shows the wave can cross the transection with a delay. (D) The speeds of the waves at various frequency bands were similar across the frequency (n = 6 slices).