Is there a certain food or drink from your past that once made you sick and you now avoid? I can think of many. This developed avoidance reaction to the taste of a certain food is called conditioned taste aversion (Lilienfeld, 229). For me, I have terrible memories of taking cough medicine when I was younger. I remember a certain grape cough syrup that was especially traumatizing for me. Before bed on nights when I had a terrible cough, by parents would practically have to force-feed me that nasty purple drink. Often times I wouldn't swallow it, I would spit it out when they weren't looking, or I would get so worked up about the syrup that I would throw it up. I began to associate that grape flavor with the terrible cough medicine and throwing up. I have been classically conditioned to hate taking cough medicine (even if it drives my roommate crazy) and to especially hate artificial grape flavoring like the syrup I had to take when I was younger. It is to the point where even smelling that grape flavor makes me gag. According to one psychology website, in classical conditioning, conditioned taste aversions are examples of single-trial learning (psychology.about.com). This means that it would only require someone to have one pairing of the previously neutral stimulus and the unconditioned stimulus to establish and automatic response. This may explain why when I would be forced to take the syrup; I would throw it up right away, it was a conditioned response. Is there anyone else who can't stand taking cough medicine? What are some foods that people especially avoid because of bad experiences in the past?