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找出一个奇怪的:蛇的图片比其他捕食者更能吸引的注意力吗?
Karl Zeller1, Sébastien Ballesta2,3, Hélène Meunier2,3
1Unité Eco-Anthropologie (EA), UMR 7206, Muséum National d'Histoire Naturelle, CNRS, Université Paris Cité, Musée de l'Homme 17 Place du Trocadéro, 75016, Paris, France. karl.zeller@edu.mnhn.fr.
Animal cognition
|October 19, 2023
概括
灵长类动物没有专门的视觉技能来检测蛇. 也同样擅长识别蛇和其他捕食者,挑战了蛇检测理论 (SDT).
科学领域:
- 灵长类动物的视力
- 进化心理学 进化心理学
- 动物行为 动物行为
背景情况:
- 蛇检测理论 (SDT) 假定灵长类动物进化了专门的视觉能力来检测蛇,因为它们长期存在的掠夺性威胁.
- 支持SDT的先前研究集中在非危险的分心者中探测蛇,忽视了其他捕食者类型.
研究的目的:
- 为了调查灵长类是否表现出与其他捕食者相比,蛇的视觉检测能力更强.
- 通过检查在各种刺激的视觉搜索性能来测试蛇检测理论的有效性.
主要方法:
- 利用一个奇怪的任务协议与Tonkean和 rhesus,涉及超过40万次试验.
- 评估检测准确度和反应时间,以识别分散注意力的偏差图像 (掠食者,非掠食动物,几何形状).
- 雇佣了歧视 (相同的分心) 和分类 (多种分心) 任务.
主要成果:
- 在识别几何形状时,比动物图像表现更好,更快.
- 与分类任务相比,歧视任务的性能更好.
- 在蛇图像与其他动物类别的检测速度或准确性方面没有发现显著差异.
结论:
- 这项研究挑战了蛇检测理论,证明蛇并不是唯一能够捕捉灵长类动物的视觉注意力.
- 的视觉搜索性能表明,一般化的捕食者检测机制可能比专门的蛇检测更相关.
- 这些发现表明,用于检测蛇的视觉技能可能并不像以前所说的那样具有进化调节.
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