Figure 2: Analysis of a speech by the Italian Prime Minister: panel (a) presents the cerebral activity related to the population of swing voters in the theta frequency bands. Note the four brains depicted at the right of each frame are relative to the four different views of the brain surface from different points of view; same convention of Figure 1, panel (b) shows the cortical activity in the same frequency band for the supporters of the Prime Minister. Cortical areas depicted in red and yellow highlight those zones in which there is an enhancement of cerebral activity, when compared to a resting state.