Galef B G, Whiskin E E
Department of Psychology, McMaster University, Hamilton, Ontario, Canada.
J Comp Psychol. 1995 Mar;109(1):99-101. doi: 10.1037/0735-7036.109.1.99.
Young observer rats (Rattus norvegicus) that interacted with a conspecific demonstrator fed a diet with more cinnamon than cocoa subsequently preferred cinnamon-flavored diet to cocoa-flavored diet, whereas observer rats that interacted with a demonstrator fed a diet with more cocoa than cinnamon preferred cocoa-flavored diet to cinnamon-flavored diet. The tendency to eat more of a food when it is a major constituent, rather than a minor one, of the diet of a conspecific may be particularly useful to weaning rats as they learn to compose a nutritionally balanced diet by eating appropriate relative amounts of several different foods.
与食用肉桂多于可可的同种示范者互动的年轻观察鼠（褐家鼠），随后更喜欢肉桂味饮食而非可可味饮食，而与食用可可多于肉桂的示范者互动的观察鼠则更喜欢可可味饮食而非肉桂味饮食。当一种食物是同种个体饮食中的主要成分而非次要成分时，多吃这种食物的倾向，对于断奶期的老鼠来说可能特别有用，因为它们要通过食用几种不同食物的适当相对量来学会组成营养均衡的饮食。
