The purpose of this study is to determine the relationship between brain activity and the perception of subjective hedonic sensations in response to a meal using functional MRI.

Functional MRI brain imaging will be performed in patients with functional dyspepsia and healthy controls in basal conditions and after a palatable test meal. During the study, the cognitive response and the hedonic dimension will be measured using 10 score scales.

Inclusion Criteria:

1. Age between 18 and 80 yrs
2. Body mass index between 18-30 Kg/m2
3. Right-handed

Exclusion Criteria:

1. Subjects with clinical history of eating-disorders
2. Subjects with clinical history of significant head-trauma
3. Subjects with known serious illness: clinically significant cardiac, vascular, liver, pulmonary, or psychiatric disorders (as evaluated by the Investigator).
4. Subjects with a known history of alcohol or drug abuse in the previous 6 months.
5. Subjects using medications with SNS effects that cannot be discontinued, such as: antidepressants, pregabalin, gabapentin.
6. Women that are pregnant or that are breast-feeding.
7. Claustrophobia