Serotonin and Dopamine Mimic Glucose-Induced Reinforcement in : Potential Role of NSM Neurons and the Serotonin Subtype 4 Receptor.

Food produces powerful reinforcement that can lead to overconsumption and likely contributes to the obesity epidemic. The present studies examined molecular mechanisms mediating food-induced reinforcement in the model system . After a 1-h training session during which food (bacteria) is paired with the odorant butanone, odor preference for butanone robustly increased.