Abstract
Naive “observer” rats that interact with conspecific “demonstrators” fed a distinctive food increase intake of the food their demonstrators have eaten. Here we found that observer rats that had interacted simultaneously with 2 demonstrator rats, 1 fed a distinctively flavored, protein-poor food, the other a distinctively flavored, protein-rich food, did not prefer the former. Similarly, observer rats ate equal amounts of two distinctively flavored foods after interacting simultaneously with 2 demonstrator rats, 1 that had consumed all food available to it, the other fed from a surplus of the second food. Last, observer rats that had interacted with both a “trustworthy” demonstrator (1 an observer had learned ate only nutritious foods) and an “untrustworthy” demonstrator (1 an observer had learned ate noxious substances) did not prefer unfamiliar foods eaten by trustworthy demonstrators to those eaten by untrustworthy demonstrators. These findings suggest limits on social information observers use in selecting foods.
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References
Choleris, E., Valsecchi, P., Wang, Y., Ferrari, P., Kavaliers, M., &Mainardi, M. (1998). Social learning of food preferences in male and female Mongolian gerbils (Meriones unguiculatus) is facilitated by the benzodiazepine anxiolytic, chlodiazepoxide.Pharmacology, Biochemistry & Behavior,60, 575–584.
Chou, L.-S., &Richerson, P. J. (1992). Multiple models in transmission of food selection by Norway rats,Rattus norvegicus.Animal Behaviour,44, 337–343.
Galef, B. G., Jr. (1990). An adaptationist perspective on social learning, social feeding, and social foraging in Norway rats. In D. A. Dewsbury (Ed.),Contemporary issues in comparative psychology (pp. 55–79). Sunderland, MA: Sinauer.
Galef, B. G., Jr. (1993). Functions of social learning about foods by Norway rats: A causal analysis of effects of diet novelty on preference transmission.Animal Behaviour,46, 257–265.
Galef, B. G., Jr. (1996). Social influences on food preferences and feeding behavior of vertebrates. In E. D. Capaldi (Ed.),Why we eat what we eat: The psychology of eating (pp. 233–266). Washington, DC: American Psychological Association.
Galef, B. G., Jr.,Mason, J. R., Preti, G., &Bean, N. J. (1988). Carbon disulfide: a semiochemical mediating socially induced diet choice in rats.Physiology & Behavior,42, 119–124.
Galef, B. G., Jr.,McQuoid, L. M., &Whiskin, E. E. (1990). Further evidence that Norway rats do not socially transmit learned aversions to toxic baits.Animal Learning & Behavior,18, 199–205.
Galef, B. G., Jr.,Rudolf, B., Whiskin, E. E., Choleris, E., Mainardi, M., &Valsecchi, P. (1998). Familiarity and relatedness: Effects on social learning about foods by Norway rats and Mongolian gerbils.Animal Learning & Behavior,26, 448–454.
Galef, B. G., Jr., &Stein, M. (1985). Demonstrator influence on observer diet preference: Analysis of critical social interactions and olfactory signals.Animal Learning & Behavior,13, 31–38.
Galef, B. G., Jr., &Whiskin, E. E. (1992). Social transmission of information about multiflavored foods.Animal Learning & Behavior,20, 56–62.
Galef, B. G., Jr., &Wigmore, S.W. (1983). Transfer of information concerning distant foods: A laboratory investigation of the “informationcentre” hypothesis.Animal Behaviour,31, 748–758.
Galef, B. G., Jr.,Wigmore, S.W., &Kennett, D. J. (1983). A failure to find socially mediated taste-aversion learning in Norway rats (R. norvegicus).Journal of Comparative Psychology,97, 358–363.
Grover, C. A., Kixmiller, J. S., Erickson, C. A., Becker, A. H., Davis, S. F., &Nallan, G. B. (1988). The social transmission of information concerning aversively conditioned liquids.Psychological Record,38, 557–566.
Guide to the care and use of experimental animals. (1980). Ottawa: Canadian Council on Animal Care.
Heyes, C. M., &Durlach, P. J. (1990). Social blockade of taste-aversion learning in Norway rats (Rattus norvegicus): Is it a social phenomenon?Journal of Comparative Psychology,104, 82–87.
Kuan, L.-A., &Colwill, R. M. (1997). Demonstration of a socially transmitted taste aversion in the rat.Psychonomic Bulletin & Review,4, 374–377.
Lavin, M. J., Freise, B., &Coombes, S. (1980). Transferred flavor aversions in adult rats.Behavioral & Neural Biology,28, 15–33.
Posadas-Andrews, A., &Roper, T. J. (1983). Social transmission of food preferences in adult rats.Animal Behaviour,31, 265–271.
Post, D. M., McDonald, M.W., &Reichman, O. J. (1998). Influence of maternal diet and perishability on caching and consumption behavior of juvenile eastern woodrats.Journal of Mammalogy,79, 156–162.
Seeley, T. D. (1995).The wisdom of the hive: The social physiology of honey bee colonies. Cambridge, MA: Harvard University Press.
Valsecchi, P., Choleris, E., Moles, A., Guo, C., &Mainardi, M. (1996). Kinship and familiarity as factors affecting social transfer of food preferences in adult Mongolian gerbils (Meriones unguiculatus).Journal of Comparative Psychology,110, 243–251.
Valsecchi, P., &Galef, B. G., Jr. (1989). Social influences on the food preferences of house mice.International Journal of Comparative Psychology,2, 245–256.
Valsecchi, P., Mainardi, M., Sgolfo, A., &Taticchi, A. (1989). Maternal influences on food preferences in weanling mice (Mus domesticus).Behavioural Processes,19, 155–166.
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This work was supported by a grant from the Natural Sciences and Engineering Research Council of Canada.
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Galef, B.G., Whiskin, E.E. & Horn, C.S. What observer rats don’t learn about foods from demonstrator rats. Animal Learning & Behavior 27, 316–322 (1999). https://doi.org/10.3758/BF03199730
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DOI: https://doi.org/10.3758/BF03199730