Effects of diversity training and a retention interval on neophobia and conditioned taste aversion

Rats received access to either distilled water, sucrose, quinine, hydrochloric acid, saline, or the three flavors of sucrose, quinine, and hydrochloric followed one or 28-days later by testing for neophobia and training and testing for conditioned taste aversion to saline. At the one-day interval, preexposures to saline, hydrochloric, or multiple flavors attenuated neophobia to saline while only preexposures to saline attenuated the conditioned aversion to saline. At the 28-day interval, none of the preexposure conditions attenuated neophobia to saline while preexposures to saline attenuated the conditioned aversion to saline.