Functional Neuroimaging of Appetite and Gut–Brain Interactions

Ultimately, eating decisions are made in the brain, based on the integration<br/>of multiple neural and hormonal signals. Since the early 1990s the use of<br/>functional<br/>neuroimaging techniques has continued to increase. Their application<br/>in the study of the regulation of food intake and gut–brain interactions<br/>has also been increasing, driven, for a large part, by the obesity epidemic.<br/>Here, we introduce the main functional neuroimaging techniques and their<br/>strengths and possible limitations. Subsequently, we illustrate how these<br/>techniques can be applied in the study of appetitive behavior. Finally, we<br/>provide<br/>a perspective on this relatively young, but promising, multidisciplinary<br/>field of research