Now a team at the Max Planck Institute for Human Cognitive and Brain Sciences in Sweden have concluded that it isn’t because we are taught to fear them after birth. In the trial, they showed a group of babies images of spiders and snakes alongside flowers and fish - all the same size and in the same colour.
位于瑞典的马克斯•普朗克人类认知和脑科学研究院的一个团队得出结论:对蛇和蜘蛛的恐惧并不是因为出生后别人教会我们的。在实验中,研究人员给一群宝宝看蜘蛛、蛇以及鲜花与鱼的图片——都是同样的尺寸、同样的颜色。
When the child’s gaze rested upon the snake or spider, rather than the other animals, their pupils enlarged significantly - a classic physiological signpost that a human is experiencing internal stress.
当宝宝的视线落在蛇或蜘蛛而非其它动物图片上时,他们的瞳孔明显放大——这是人类正在经历内在压力的典型生理指标。
Stefanie Hoehl, lead investigator, said: “In constant light conditions this change in size of the pupils is an important signal for the activation of the noradrenergic system in the brain, which is responsible for stress reactions. Accordingly, even the youngest babies seem to be stressed by these groups of animals.”
首席研究员斯蒂芬妮•赫厄说道:“在不变的光照条件下,瞳孔大小的变化是大脑去甲肾上腺素被激活的重要信号,去甲肾上腺素是造成压力反应的原因。因此,即使是刚出生的宝宝也会因为这两种动物而感到压力。”
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