Figure 4
Effects of cortical activation on synchronous oscillation in the presence of uniform field noise.

Average power spectra and pulse-cross correlations calculated as for the two short bars moving in the same direction case, in figure 3a. Here uniform amplitude spatio-temporally white noise was applied throughout the field, and both the level of cortical activation (Q_ns) and the amplitude of the signals associated with the moving bars (Q_s) were raised concurrently.