*4.3. Reward Sensitivity*

Finally, concerning reward sensitivity, we did not find significant differences between the ED, obese, and healthy control groups for BAS reactivity. While we did anticipate a potential difference between AN-R and healthy controls, and between obese patients and healthy controls, some studies also did not find differences when using the BISBAS scales [1,49]. In the present study, only patients with Class II obesity without binge eating and Class III obesity with and without binge eating scored significantly higher on BAS drive than ED and healthy controls. This finding possibly refers to the high drive of obese patients to attain their goal, i.e., the bariatric surgery.
