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What is there to be afraid of? Paraskevidekatriaphobia, the fear of Friday the 13th, perhaps? If you were to consult a complete list of phobias, apparently everything. There are nearly as many phobias as there are nouns; just attach a Greek prefix to -phobia and you’re off to the fear factory.

Fear is in our DNA
Psychologists believe that evolution has woven fear into our collective unconscious. This is a good thing, in and of itself, since fear serves the vital function of alerting us to dangerous situations. It’s a defense mechanism. But a phobia is an extreme and disabling fear accompanied by an intense need to avoid the object or situation. As the thinking goes, phobic people may be exaggerating fears programmed into the human mind way back when we lived in caves and clubbed our dinner over the head with a stick.

Evolution is still catching up

The typical evolved brain knows, for instance, that snakes are more afraid of us than we are of them. But the primal brain says, “Shoot that thing.” It helps to see it through the caveman’s eyes. Fear developed to keep him alive.

But now consider the phobic mindset, in which fear becomes irrational. Say a young woman living in the hills of Los Angeles has a phobia about elephants. They are not indigenous to her hemisphere and she doesn’t go to the circus, but she freaks out when one appears on the nature channel. She can’t even read “Babar.” While most contemporary Westerners think of elephants as gentle giants in a zoo, her caveman self is sure the beast would want her for lunch. The primal fear has a lock on her.

Another example is aviophobia, the fear of flying. It’s possible people fear flying not because of the crashes reported (which, statistically, are very rare) but because there is something unnatural—to the caveman—about being shot through the air at 600 miles per hour, 32,000 feet above the ground, eating salty foods.

You are not alone (does that scare you?)
The most common phobias are zoophobias, which are anxieties about animals. Bats, rats, dogs and cats all make the list. The general fear of insects is very common, as is fear of mice. The two animals most likely to give the willies, though, are spiders and snakes. Seven percent of the population has a zoophobia, and women are three times more likely to be afflicted.

The five most common phobias are:
1. Fear of snakes (ophidiophobia)
2. Fear of giving a speech (glossophobia)
3. Fear of heights (acrophobia)
4. Fear of rodents (musophobia)
5. Fear of flying (aviophobia)

Following closely are phobias about confined spaces, thunder, nighttime and dogs.

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Sunday, November 29, 2009 8:29:05 AM

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Monday, March 30, 2009 3:30:26 AM

Yes, there's loads of evidence supporting Seligman's 1970 theory that humans have evolved to fear certain objects and situations. We have evolved to be more prepared (find it easier) to learn some fears rather than others. Our ancestors who had these fears were actually more likely to survive and reproduce (hence pass on their genes) than those people who weren't afraid.

Claustrophobia is what is termed an 'ancestral' fear - that's a good thing, because it means that, in the past, our ancestors would have survived better had they been claustrophobic. It makes sense - those ancestors who were afraid to go into really small spaces were less likely to get trapped, and so were more likely to pass on their genes.

So, the person you know who has claustrophobia almost certainly inherited from their parents the genes which caused him/her to be more likely to become claustrophobic. But it's not just genes, because some close relatives of this person will also have the genes yet won't suffer claustrophobia. This is due to the 'diathesis-stress model', which basically means that you need to inherit the right genes AND have some life experience (in this case, negative experiences of being in a small space) in order to develop claustrophobia. The life event is a trigger for the gene.

Hope this helps! You could also have a look at some research studies which support Seligman's theory - some good examples are: Buss (1999), and Bennett-Levy & Marteau (1984).

Monday, March 16, 2009 4:10:05 PM

I know someone who suffers claustrophobia and i want to know if fears can be genetic

 

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