School of Psychology and Public Health, La Trobe University, P.O. Box 199, Bendigo, Victoria, 3552, Australia.
Psychon Bull Rev. 2019 Oct;26(5):1641-1649. doi: 10.3758/s13423-019-01661-2.
One way to better understand how animals visually perceive their environment is to assess the way in which visual information is interpreted and adapted based on preconceptions. Domestic dogs represent a unique species in which to evaluate visual perception as recent findings suggest they may differ from humans and other animal species in terms of their susceptibility to geometric visual illusions. Dogs have demonstrated human-like, reversed, and null susceptibility depending on the type of illusion. To further evaluate how dogs perceive their environment, it is necessary to perform additional assessments of visual perception. One such assessment is the perceptual filling-in of figures, which may be invoked when presented with illusory contours. Six dogs were assessed on their perception of the Ehrenstein illusory contour illusion in a two-choice size-discrimination task. Dogs, as a group, demonstrated equivocal perception of illusory contours. Some individual dogs, however, demonstrated human-like perception of the subjective contours, providing preliminary evidence that this species is capable of perceiving illusory contour illusions, thereby improving the current understanding of canine visual perception capabilities. Additional assessments using alternative illusory contour illusions are needed to clarify these results and identify features that underpin the individual differences observed.
一种更好地了解动物如何感知环境的方法是评估基于先入之见的视觉信息的解释和适应方式。家犬是一种独特的物种，可以用来评估视觉感知，因为最近的研究表明，它们在易感性方面可能与人类和其他动物物种有所不同，它们容易受到几何视觉错觉的影响。根据错觉的类型，狗表现出与人相似、反转和无效的易感性。为了进一步评估狗如何感知它们的环境，有必要对视觉感知进行额外的评估。这样的评估之一是图形的感知填充，当呈现出错觉轮廓时，可能会引发这种填充。在一项二选一的大小辨别任务中，对六只狗进行了 Ehrenstein 错觉轮廓错觉感知的评估。作为一个群体，狗对错觉轮廓的感知存在疑问。然而，一些个体狗表现出了类似于人类的主观轮廓感知，这为该物种能够感知错觉轮廓错觉提供了初步证据，从而提高了对犬类视觉感知能力的现有理解。需要使用替代错觉轮廓错觉进行额外评估，以澄清这些结果并确定观察到的个体差异的基础特征。
