Figure 9: Processing of action words (action verbs) and vision words (concrete nouns) is accompanied by significantly different electrocortical responses. Difference maps (nouns minus verbs) are shown. Large circles represent the head seen from the top (anterior is up, left is left). Differential topographies of event-related potentials (left diagram) are compared to evoked spectral responses in the frequency range 25-35 Hz (right diagram). (Adopted from Pulvermüller et al. (1996b).)