FIGURE 5.
The top of the figure presents the values of spectral power obtained averaging the values for the electrodes placed over the central brain area. The frequency (X-axis) and spectral power (Y-axis) for the three experimental conditions (neutral, nature, and urban videos). The bottom of the figure shows the results of ANOVA and t-tests on the differences between the conditions on the spectral power for each frequency from 2 to 30 Hz. The black color shows the frequency values in which the spectral power values were statistically different between the conditions.