Landová Eva, Bakhshaliyeva Natavan, Janovcová Markéta, Peléšková Šárka, Suleymanova Mesma, Polák Jakub, Guliev Akif, Frynta Daniel
Department of Zoology, Faculty of Science, Charles University, Prague, Czechia.
Applied Neurosciences and Brain Imaging, National Institute of Mental Health, Klecany, Czechia.
Front Psychol. 2018 Mar 16;9:333. doi: 10.3389/fpsyg.2018.00333. eCollection 2018.
According to the fear module theory, humans are evolutionarily predisposed to perceive snakes as prioritized stimuli and exhibit a fast emotional and behavioral response toward them. In Europe, highly dangerous snake species are distributed almost exclusively in the Mediterranean and Caspian areas. While the risk of a snakebite is relatively low in Central Europe, Azerbaijan, on the other hand, has a high occurrence of the deadly venomous Levant viper (). We hypothesize that co-habitation with this dangerous snake has shaped the way in which humans evaluate snake species resembling it. For that purpose, we asked respondents from the Czech Republic and Azerbaijan to rank photographs depicting 36 snake species according to perceived fear and beauty. The results revealed a high cross-cultural agreement in both evaluations (fear = 0.683, < 0.0001; beauty: = 0.816, < 0.0001). Snakes species eliciting higher fear tend to be also perceived as more beautiful, yet people are able to clearly distinguish between these two dimensions. Deadly venomous snakes representing a serious risk are perceived as highly fearful. This is especially true for the vipers and allies (pit vipers) possessing a characteristic body shape with a distinct triangular head and thick body, which was found as the most fear evoking by respondents from both countries. Although the attitude toward snakes is more negative among the respondents from Azerbaijan, their fear evaluation is similar to the Czechs. For instance, despite co-habitation with the Levant viper, it was not rated by the Azerbaijanis as more fearful than other dangerous snakes. In conclusion, agreement in the evaluation of snake fear and beauty is cross-culturally high and relative fear attributed to selected snake species is not directly explainable by the current environmental and cultural differences. This may provide some support for the evolutionary hypothesis of preparedness to fear snakes.
根据恐惧模块理论,人类在进化过程中倾向于将蛇视为优先刺激物,并对它们表现出快速的情绪和行为反应。在欧洲,高度危险的蛇类几乎只分布在地中海和里海地区。虽然中欧的蛇咬风险相对较低,但阿塞拜疆却有致命的黎凡特蝰蛇()的高发生率。我们假设,与这种危险蛇类的共同生活塑造了人类评估与其相似蛇类的方式。为此,我们让来自捷克共和国和阿塞拜疆的受访者根据感知到的恐惧和美丽程度对描绘36种蛇类的照片进行排名。结果显示,在这两种评估中都存在高度的跨文化一致性(恐惧:= 0.683,< 0.0001;美丽:= 0.816,< 0.0001)。引发更高恐惧的蛇类往往也被认为更美丽,但人们能够清楚地区分这两个维度。代表严重风险的致命毒蛇被视为极具恐惧性。对于蝰蛇及其近亲(蝮蛇)尤其如此,它们具有独特的身体形状,头部呈明显的三角形且身体粗壮,这被发现是两个国家的受访者最容易引发恐惧的特征。尽管阿塞拜疆的受访者对蛇的态度更为负面,但他们的恐惧评估与捷克人相似。例如,尽管与黎凡特蝰蛇共同生活,但阿塞拜疆人对它的恐惧程度并没有比其他危险蛇类更高。总之,在蛇类恐惧和美丽评估方面的一致性在跨文化中很高,并且归因于特定蛇类的相对恐惧不能直接用当前的环境和文化差异来解释。这可能为对蛇类恐惧的进化准备假说提供一些支持。