In Experiment 2, we found that lower suprathreshold ratings of expectorated
fat and sucrose predicted greater reinforcing value of food. In addition, higher detection thresholds for fat
stimuli (indicating poorer detection) were associated with greater reinforcing value of food. When taken together,
these studies suggest that there is a relationship between taste detection and perception and reinforcing
value of food and that these relationships vary based on whether the stimulus is swallowed or
expectorated.