“…The apparent limitation of long-delay food aversion learning in rats to taste and smell stimuli deserves reexamination for two reasons. First, in the absence of a lengthy delay between external feeding cues and sickness, rats learn the association (Andrews & Cameron, 1960;Best, Best, & Mickley, 1973;Garcia, Kimeldorf, & Hunt, 1956;Mitchell, Kirschbaum, & Perry, 1975 ;Overall, Brown, & Logic, 1960; Balagura, Note 1; Riley & Woods, Note 2); in fact, there is even a report that rats can This research was supported by Grant A8271 from the National Research Council of Canada. Andrew Baker made the exploratory observation leading to these experiments.…”