A study published in the Neuropsychopharmacology journal in 2013 revealed the finding that the flavour of <answer>beer</answer> alone could provoke dopamine activity in the brain of the male participants, who wanted to drink more as a result. The 49 men in the study were subject to positron emission tomography scans, while a computer-controlled device sprayed minute amounts of <answer>beer</answer>, water and a sports drink onto their tongues. Compared with the taste of the sports drink, the taste of <answer>beer</answer> significantly increased the participants desire to drink. Test results indicated that the flavour of the <answer>beer</answer> triggered a dopamine release, even though alcohol content in the spray was insufficient for the purpose of becoming intoxicated.
What taste could significantly impact a man's desire to drink?
beer