Where did the arachnophobia — fear of spiders?
Source:
it is Very unpleasant to look at photos of spiders when you're arachnophobe
Many people, including the author of this article, I'm afraid . From my own experience, I can say that this fear is quite irrational — I know that spiders (at least the majority of species that live in Russia) is not going to hurt me, but to death they are afraid from a very early age. If you suffer from arachnophobia or you know someone whose heels sparkle at the mere sight of these arthropods, then you probably will be interested to know that the cause of fear lies in the evolution of our species. To such conclusion scientists from the University of Columbia (USA). The paper was published in the journal .
According to the results, at the earliest stages of human evolution represented a major threat because of the powerful poison, ability to go unnoticed and their behaviour towards the victims; in fact, at the dawn of human evolution to survive could only those who possessed special abilities to detect these and other types of animals. Therefore, the fear of this class of arthropods were sealed in our DNA over time.
In their study, the researchers write that the people were in constant, unpredictable and significant risks in the face of encounters with very poisonous spiders native habitat. Even when mortal danger was not a bite, for example, black widow in the land of the ancestors could make a person incapacitated for several days or even weeks, during which time he suffered many dangers.
Why spiders?
To some, it is innate, not acquired. According to some specialists, spiders are evolutionary inherited persistent danger that people may face, even when we don't pay much attention to the environment. In the end, our ancestors coexisted with these eight-legged creatures over millions of years, and knowledge about spiders and their life-threatening bites was crucial for survival. Moreover, our visual system can preserve the "genetic mechanisms", designed for the rapid detection of immediate and specific threats that have been preserved throughout evolution — for example, the ability to recognize snakes and spiders. More news from the world popular science read .
Some spiders — this small, crafty, poisonous, and deadly creation.
To test whether this is in fact, the researchers invited hundreds of University students to solve a simple task: subjects had to choose the longest of the two lines on the cross displayed on the computer screen. After the participants passed this test several times, the researchers added an object that was glowing within a few hundred milliseconds on the screen. These objects were modern threats (the hypodermic needle), unrelated insects (house flies), and native threat (spiders). Less than 15% of the subjects noticed and were able to locate a hypodermic needle in the tests on «inattention blindness». Similarly, only 10% successfully found room fly. However, when the screen quickly appeared, or form, it resembles, more than half of study participants were able to see the spider and to determine in which quadrant it appeared.
I Note that today the spiders do not pose such serious dangers to humans compared to the deep past. Only the bite of about 200 species of 40 thousand is indeed a serious health problem and is the cause of about 200 deaths a year worldwide. Agree, not so much. But hardly people suffering from arachnophobia will cease them less afraid. Are you afraid of spiders? Let's talk about fear of arthropods, rodents and snakes in the comments .
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