15-1 Sat Jan 2 Comparing the ability of miniature pigs and family dogs to learn iconic and non-iconic orientation cues Dror, S*; Magyari, L; Fugazza, C; Miklósi, A; Andics, A; Department of Ethology, Eötvös Loránd University, Budapest; MTA-ELTE ‘Lendület’ Neuroethology of Communication Research Group, Hungarian Academy of Sciences shanymd@gmail.com
Gestures had a crucial role in the evolution of human language, therefore investigating gesture comprehension in nonhuman species is of great interest. Family dogs can spontaneously follow pointing gestures, possibly as a result of selection for cooperation skills during the domestication process. Unlike dogs, pigs were domesticated as meat stock. Previous work suggests that pigs do not spontaneously follow human gestures but can be trained to do so. This study compared the ability of similarly raised dogs (N=10) and miniature pigs (N=6), to react to iconic (IC) and non-iconic (NI) cues. We hypothesized that the difference in the domestication goals will result in dogs outperforming pigs. In addition, as owners often use IC gestures for communicating with their pets, IC cues were expected to result in higher performance. Subjects were trained to approach food dispensers positioned on their left and right based on an experimenter given cue. In each specie, half of the subjects received cues given by the experimenter’s legs, and half received hand gestures as cues. Both species learned the IC and NI hand cues with higher than chance performance. However, both performed better with IC hand cues. Dogs performed better than pigs with hand given IC cues. Both species performed at chance level when receiving leg cues. we conclude that dogs are more successful in reacting to human gestures and suggest that iconicity facilitates learning in dogs more than in pigs. We attribute the low performance for leg cues to an attentional bias, as all subjects were used to receiving food from the experimenter’s hands.