Figure 9.

Spectral power changes during KCs. The same conventions are used as in Figure 6. In the right hemisphere prominent increases extended posteriorly within the dorsal frontal cortex toward the precentral gyrus, with a wider spread in the low than high frequencies. Prominent increases in basal forebrain were confined within the left hemisphere identified in all frequency bands from delta to high sigma, with the most widespread in the alpha and low sigma bands where they extended around OFC and NBM.