Results from an fMRI study of gaze processing; figure from (Nummenmaa et al., 2010). That study used psychophysiological interaction to identify regions showing differential connectivity with core face perception regions (either PSTS or fusiform or both regions) when viewing gaze shifts relative to a control condition (blinking). Shown are a system in red identified from a seed in PSTS (MT/V5, PSTS, Intraparietal sulcus, frontal eye fields, STG/STS, supramarginal gyrus, and middle frontal gyrus) and a system in blue identified from a fusiform seed (fusiform gyrus, STG/STS, and middle frontal gyrus) with the overlap of the two systems shown in green (superior temporal and middle frontal gyri). Figure 2, top panel with permission from Nummenmaa et al. (2010). Open Acess article.