a form of learning in which a conditioned response it produced after a single pairing of a neutral stimulus and an unconditioned stimulus. A conditioned taste aversion generally occurs as a result of one-trial learning.
where a neutral taste stimulus is paired with an unconditioned stimulus that results in an unconditioned response of nausea or illness. Generally after a single pairing, the previously neutral taste stimulus alone produces the conditioned response of nausea.
A key distinction between classical conditioning and taste aversion is that taste aversion only requires one trial to be learned.
Garcia and Koelling's 1966 experiment
Garcia and Koelling gave rats sweetened water and then made them ill by injecting them with poison.
once the rats had recovered, they were provided with sweetened water and plain water and their preference was noted.
rats drank significantly less of the sweetened water following this conditioning process, and it was concluded that they had developed a conditioned taste aversion.
this experiment demonstrated that the principles of classical conditioning could be applied to condition an avoidance of a smell or taste if it had previously been paired with nausea
taste aversion example
Melissa is pregnant and loves to eat olives. Her pregnancy causes her to experience some nausea, and one day a couple of hours after eating olives, Melissa vomits. A few days later, when out for lunch Melissa orders a dish that contains olives. Melissa finds that she cannot eat her meal, because it contains olives and is making her feel ill.