Figure 5.

Information flow during action observation. Circuit we propose to be involved in the perception of other people’s actions. Cortical regions send information to the cerbellum through the pons (blue arrows), and information processed in the cerebellum flows to the cortex through the thalamus (Thal) via the cerebellar nuclei (CN, green arrows). The different colours of the arrows between cortical regions indicate the direction of the forward and inverse model. Red crosses indicate that a perturbation of the activity in those regions (either by non-invasive brain stimulation technique or degenerative deficits) influences action perception. IFG = inferior frontal gyrus; MTG = middle temporal gyrus; PF = parietal region PF; PM = premotor cortex.