“…This phenomenon, which was later confirmed with animals, with the best performance usually occurring several days following training, is not as well established as the Kamin effect, probably because it has not been studied to as great an extent. Moreover, the earlier studies, mainly those published prior to 1940 (A. C. Anderson, 1940;Magdsick, 1936), have been criticized because of methodological deficiencies. In addition, the authors used different terms to describe the same phenomenon observed after positively and negatively reinforced task: "reminiscence" (Bovet, Bovet-Nitti, & Oliverio, 1969;Jaffard, Destrade, Soumireu-Mourat, & Cardo, 1974), "incubation" (Geller & Jarvik, 1970;Pinel & Cooper, 1966), or simply "improvement of performance" (Gisquet-Verrier & Alexinsky, 1986;Stanes, Brown, & Singer, 1976).…”