Farr Olivia M., Li Chiang-shan R., Mantzoros Christos S., Central nervous system regulation of eating: insights from human brain imaging, Metabolism (2016), doi:10.1016/j.metabol.2016.02.00
From the conclusion: “FMRI combined with neurocognitive testing and food cue paradigms in humans hold great promise in unraveling how the homeostatic, reward, cognitive and affective systems interact to control appetite and eating. PET and SPECT imaging are instrumental to revealing the molecular determinants of these neural processes. Together, these imaging tools are critical to understanding how the brain is altered in obesity including potential subtypes of obesity (e.g. emotional eaters) and to developing new pharmacological regimens to effectively treat obesity.