Figure 5.

Interference of the subthreshold waves. (A) The subthreshold wave at 10 Hz was triggered in the temporal region of the slice and was recorded in the middle of the slice. (B) Similarly, the subthreshold wave can be triggered in the septal area and recorded in the middle of the slice. (C) When the laser was applied on both sides of the slice and generated two subthreshold with the same phase, larger subthreshold waves were recorded in the middle of the slice. (D) When the laser triggered two waves with a 180-degree phase shift, a smaller subthreshold wave was observed in the middle of the slice. (E) The amplitude of subthreshold waves reconstructed by adding two encountering waves was similar to that measured from the recording signal. It shows that the waves can constructively interfere with each other (n = 5 slices). (F) The amplitude of subthreshold waves from the estimated waves was similar to that from the recorded waves. It shows that the waves can also destructively interfere with each other (n = 5 slices).