Figure 3.

BOLD activation contrasts between faces and houses, and between high and low sensory evidence. A, Red to yellow: activations greater for face stimuli than house stimuli (across both high and low sensory evidence). Face stimuli activated the fusiform gyrus, including the fusiform face area, significantly more than house stimuli. Dark blue to light blue: the parahippocampal place area shows greater activation for house stimuli than face stimuli. Fusiform face and parahippocampal house regions of interest were selected in each subject based on Face>House and House>Face contrasts. B, Multiple brain regions are modulated by the amount of sensory evidence available for a decision. Red to yellow: greater activations for high sensory evidence than low sensory evidence (across both faces and house) can be found in multiple brain regions, including prefrontal and inferior parietal cortices. Dark blue to light blue: greater activations for low sensory than high sensory evidence can be found in multiple cortical and subcortical areas, including prefrontal and posterior parietal cortex. All activations are shown at voxelwise p < 0.001, corrected to p < 0.05 with AlphaSim (see Materials and Methods).