Effect of internal state on preferential responses to milkshake. Bar graphs show parameter estimates for Milkshake and Tasteless stimuli at the peak voxel in those regions. Panels masked with combined a priori ROIs for display purposes. MB=midbrain, hipp=hippocampus, DLPFC=dorsolateral prefrontal cortex. Color bar depicts t-values. a) Milkshake>Tasteless, Ad Lib>Hungry. b) Milkshake>Tasteless, Fixed>Ad Lib. c) Milkshake>Tasteless, Ad Lib>Fixed (trend).