Pigeons perceive the Ebbinghaus-Titchener circles as an assimilation illusion
Pigeons perceive the Ebbinghaus-Titchener circles as an assimilation illusion
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DOI：
10.1037/0097-7403.34.3.375
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发表时间：
2008-07-01
期刊：
影响因子：
--
通讯作者：
Fujita, Kazuo
中科院分区：
文献类型：
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作者：
Nakamura, Noriyuki;Watanabe, Sota;Fujita, Kazuo
被较大的“诱导物”圆圈包围的目标圆圈看起来较小，而被较小的圆圈包围的目标圆圈看起来比实际大。这就是艾宾浩斯-蒂钦纳错觉，它仍然是对比错觉中最强烈、最强大的错觉之一。虽然有许多关于人类这种错觉的研究，但几乎没有人讨论过非人类动物如何感知相同的图形。在这里，作者表明，艾宾浩斯-蒂钦纳的数字也引起了强烈的错觉，但令人惊讶的是。在其他方向，也就是说，所有五只成功训练的鸽子都认为被更大的圆圈包围的目标圆圈比实际要大，反之亦然。进一步的分析证明，无论是目标和诱导圆之间的间隙，还是这些图形元素的累积加权表面，都不能解释鸟类的反应。众所周知，猪与人类在各种认知和感知任务中表现出相似性，包括概念形成，短期记忆和一些视觉错觉。我们的研究结果，再加上之前鸽子在视觉完成方面的失败，提供了强有力的证据，证明鸽子实际上可能经历了一个我们无法想象的视觉世界。
A target circle surrounded by larger "inducer" circles looks smaller, and one surrounded by smaller circles looks larger than they really are. This is the Ebbinghaus-Titchener illusion, which remains one of the strongest and most robust of contrast illusions. Although there have been many Studies On this illusion in humans, virtually none have addressed how nonhuman animals perceive the same figures. Here the authors show that the Ebbinghaus-Titchener figures also induce a strong illusion in pigeons but, surprisingly. in the other directions that is, all five Successfully trained pigeons judged the target circle surrounded by larger circles to be larger than it really is and vice versa. Further analyses proved that neither the gaps between target and inducer circles nor the cumulative weighted surface of these figural elements could account for the birds' responses. Pigeons are known to show similarities to humans oil various cognitive and perceptual task including concept formation, short-term memory, and some Visual illusions. Our results, taken together with pigeons' previously demonstrated failure at Visual completion, provide strong evidence that pigeons may actually experience a visual world too different for us to imagine.