Trade-offs between feeding and shock avoidance in goldfish (Carassius auratus)

摘要: Previous work showed that goldfish learn to avoid a region of an aquarium where they receive discrete shock the flank. This avoidance is reduced if another fish present next zone, suggesting trade-off against tendency associate [Dunlop, R., Millsopp, S., Laming, P., 2006. Avoidance learning in (Carassius auratus) and trout (Oncorhynchus mykiss) implications for pain perception. App. Anim. Behav. Sci. 97 (2–4), 255–271]. Only intensity was adjusted those experiments, here we report results requirement food also altered. Fish were trained feed at subsequently would One experimental group had different intensities applied, whereas other consistent but deprivation varied. We show number feeding attempts time spent feeding/shock zone decreased with increased duration as did escape responses this entered. These data suggest balance their need acute noxious stimulus.