Two conditioned taste aversion experiments with rats were conducted to establish if a target taste that had received a prior pairing with illness could be subject to second-order conditioning during extinction treatment in compound with a flavor that also received prior conditioning. In these experiments, the occurrence of second-order…

Animals recognize a taste cue as aversive when it has been associated with post-ingestive malaise; this associative learning is known as conditioned taste aversion (CTA). When an animal consumes a new taste and no negative consequences follow, it becomes recognized as a safe signal, leading to an increase in its consumption in subsequent…

One member from each of two object pairs was assigned as a reinforcer during a generalized requesting intervention using manual signs or graphic symbols with two severely handicapped learners (age 18). Prior generalized request training and reinforcer use did not influence effectiveness of later instruction in acquisition and generalized use of…