Eatherington Carla J, Marinelli Lieta, Lõoke Miina, Battaglini Luca, Mongillo Paolo
Laboratory of Applied Ethology, Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università 16, 35020 Legnaro, Italy.
Department of General Psychology, University of Padua, Via Venezia 8, 35131 Padova, Italy.
Animals (Basel). 2019 Sep 6;9(9):661. doi: 10.3390/ani9090661.
Visual perception remains an understudied area of dog cognition, particularly the perception of biological motion where the small amount of previous research has created an unclear impression regarding dogs' visual preference towards different types of point-light displays. To date, no thorough investigation has been conducted regarding which aspects of the motion contained in point-light displays attract dogs. To test this, pet dogs ( = 48) were presented with pairs of point-light displays with systematic manipulation of motion features (i.e., upright or inverted orientation, coherent or scrambled configuration, human or dog species). Results revealed a significant effect of inversion, with dogs directing significantly longer looking time towards upright than inverted dog point-light displays; no effect was found for scrambling or the scrambling-inversion interaction. No looking time bias was found when dogs were presented with human point-light displays, regardless of their orientation or configuration. The results of the current study imply that dogs' visual preference is driven by the motion of individual dots in accordance with gravity, rather than the point-light display's global arrangement, regardless their long exposure to human motion.
视觉感知仍然是犬类认知中一个研究不足的领域，尤其是生物运动感知方面，此前少量的研究对于狗对不同类型点光显示的视觉偏好产生了不清晰的印象。迄今为止，尚未针对点光显示中运动的哪些方面吸引狗进行过全面调查。为了测试这一点，向48只宠物狗展示了成对的点光显示，并对运动特征进行了系统操纵（即直立或倒置方向、连贯或混乱配置、人类或犬类物种）。结果显示倒置有显著影响，狗注视直立的犬类点光显示的时间明显长于倒置的；未发现对混乱或混乱 - 倒置相互作用有影响。当向狗展示人类点光显示时，无论其方向或配置如何，均未发现注视时间偏差。当前研究结果表明，狗的视觉偏好是由单个点根据重力的运动驱动的，而不是点光显示的整体排列，无论它们长期接触人类运动。
