Exterminate a spider in the bathroom

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SUMMARY

The discussion centers on arachnophobia, the intense fear of spiders, and its potential evolutionary roots. Participants explore the idea that this fear may stem from ancestral survival instincts, as articulated by Joseph LeDoux, a professor of neural science and psychology. The conversation also touches on the genetic lag theory, suggesting that fears like arachnophobia may not be directly inherited but rather a byproduct of evolutionary history. The complexity of phobias is emphasized, with distinctions made between fear and phobia, and the influence of personal experiences on these fears.

PREREQUISITES
  • Understanding of basic psychological concepts, particularly phobias and fears.
  • Familiarity with evolutionary psychology and genetic lag theory.
  • Knowledge of the biological classification of arachnids.
  • Awareness of the impact of personal experiences on psychological development.
NEXT STEPS
  • Research the evolutionary psychology behind phobias and fears.
  • Explore genetic lag theory in the context of modern human behavior.
  • Investigate the psychological treatment options for phobias, such as cognitive-behavioral therapy.
  • Study the biological classification and characteristics of common spiders.
USEFUL FOR

This discussion is beneficial for psychologists, evolutionary biologists, and individuals interested in understanding the psychological mechanisms behind phobias, particularly arachnophobia.

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Spiders. Under the biological group of Arachnia. Phobia meaning fear. Arachnaphobia - the fear of anything under the categeory of Arachnia.

Just 10 minutes ago I was called my my Mother to exterminate a spider in the bathroom. This was one big mother of a spider, about 1 inch in length.

I suffer from extreme arachnaphobia and any sight of any spider *WHOSH* I am outa there.

There are countless people suffer from arachnaphobia - the majority of the globe. But why? Why are we afraid of something that's so small, something that can not kill us Well, the domestic house spider in the UK can't - I know Australia is a different story.

What is it about spiders that's so scary that when we see one it makes us want to gouge our eyeballs out with spoons and run for the hills?

Appologies if this is in the incorrect forum.
 
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It's like any phobia, there is no specific reason for it. I'm not afraid of spiders and even like the fat hairy "jumping" spiders we have here.

I knew a girl that had a fear of indoor plumbing. She couldn't go into her basement to do her laundry because there were exposed pipes.
 
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Evolved phobias and genetic lag

Paul Wilson said:
Why are we afraid of something that's so small, something that can not kill us
...Because it could kill our ancestors.
http://news.nationalgeographic.com/news/2001/10/1004_snakefears.html

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Joseph LeDoux, a professor of neural science and psychology at New York University in New York City, said the results of the research by Öhman and his colleagues were generally accepted within the scientific community. "Certainly there are certain stimuli that are pre-wired in the brain because they have been perennially dangerous to our ancestors," he said.
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If spiders can no longer kill us, arachnophobia might constitute an instance of genetic lag.
http://www.efn.org/~callen/anmfshtml/section3.9.htm

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The connection of the moral with the genetic is most likely to be overlooked by contemporary one-eyed sociology. But clearly the evolution of a powerful system of within-group cultural moral habits must proceed in association with genetic evolution of tendencies and sensitivities favorable to those values. This is usually completely overlooked in the average historian's account of cultural development (except in Darlington, 1969, McDougall, 1924, and a few others). Yet it is extremely important, as our discussion in Chapter 6 on the culturo-genetic lag principle shows.
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http://www.efn.org/~callen/anmfshtml/section8.9.htm

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Incidentally, the question of what we are actually doing when we think we are raising the I.Q. directly by education has recently been very thoroughly examined in books by Cancro (1971) and Eysenck (1971). The cost of school education per child — if a fixed standard is aimed at — goes up steeply with lowered I.Q. And time as well as money presents a problem; for thirty years of education might barely suffice to develop certain occupationally required intellectual skills in truly sub-average intelligences. Education of personality and character in the low I.Q. is, however, a more promising possibility. In the inter-group cooperative competition which Beyondism encourages, the relative survival of communities will be determined partly by the cost of their educating their populations (to an agreed common standard). The main determiner of the size of this burden of costs will be the magnitude of the genetic lag.
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The so-called "scientific" theories of phobias on basis of genetics&evolution are just as facile, simplistic as any crackpottish psychanalytic theory ever were.

Unless you can show that there is a strongly inherited trait in phobias (for example, that a particular phobia is a lot more prevalent in a phobe's family than in the rest of the population) , these genetic theories are basically worthless.

In short, nobody knows.
As for myself, I only know that I don't know..:wink:
 
I agree that nobody knows but that is the case with every theory...

It seems reasonable to assume that is beneficial for survival to be afraid of things that can harm (or even kill) you. It also seems that during a substantial part of our evolutionary history we have lived in an environment in which spiders were dangerous, in which it would be better to jump back whenever you encountered one. So it is believable that the humans that were afraid of spiders had a better chance of surviving and that therefore many of us are still "wired" to fear spiders.
 
I highly doubt that there was ever a widespread threat to humans from spiders that would result in anything being specifically "pre-wired" into modern day humans where spiders are concerned. The majority of spiders aren't even poisonous. While a lot of people may dislike them, they don't fear for their lives when they see one. It's not like coming across a rattlesnake or a bear.

Phobias are abnormal or irrational fears. Phobias can be about anything. To suggest they are tied to our ancestor's fears doesn't hold too much water when you consider how many "non-threatening" and new subjects people have phobias about.

Here are some phobias and a link to a list of them.

Fear of
air - Anemophobia
anything new - Neophobia
atomic explosions - Atomosophobia
Asymmetrical Things - Asymmetriphobi
Bald People - Peladophobia
Beds / Going To Bed - Clinophobia
Body, Things To The Left Side of The Body - Levophobia
Chickens - Alektorophobia
Clocks - Chronomentrophobia
Dancing - Chorophobia
Daylight / Sunshine - Phengophobia
Englishness - Anglophobia
Telephones - Telephonophobia
Thinking - Phronemophobia

http://psychology.about.com/library/bl/blphobia_a.htm
 
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Evo, you forgot ophiciophobia-fear of snakes. I am extremely terrified of any snake, whether it be in a cage or outside, small, large, poisonous or not. On a camping trip once, I was laughed at because I screamed loudly at a small red snake hiding under my tent tarp. It is no laughing matter because the fear can evoke rapid heart rates and shaking. My daughter fears spiders, which I do not, so any time there is a spider near her, I come to her rescue. I completely understand phobias.
 
I hate snakes too. I'd rather eat live worms than touch a snake, even a little harmless grass snake.

Real phobias can be crippling to a person. There is also a difference between a fear of something and a phobia. If your reaction is that strong, it might be more phobic.
 
I think fear is a useful state of mind that helps you survive; it helps one to avoid dangerous situations. Of course nothing is perfectly "tuned" in the biological world and there is a lot of variation. Fear can be assigned to situations that in fact are not dangerous at all. Fear is an important emotion, and like with any function of body or mind things can go wrong. Some fears seem particularly weird, but those are also the ones that are very rare. Often they can be related to the person concerned having bad experiences associated with the thing that is feared now. Such fears are difficult to understand for an objective researcher because they are based on very subjective ways of reasoning.

However, fear for spiders and fear for snakes is very common, and it seems to me that that is not strange considering our evolutionary history in Africa (many present day monkeys also have alarm calls for snakes). Since fears are not equally likely to be about anything, there should be some reason why they are more often about certain things than about others. Why would many more be afraid of heights, snakes and spiders than of for example air drafts? Presumably this has to do with our genetic make up, and thus with our evolutionary history.
 
  • #10
gerben said:
I agree that nobody knows but that is the case with every theory...

It seems reasonable to assume that is beneficial for survival to be afraid of things that can harm (or even kill) you. It also seems that during a substantial part of our evolutionary history we have lived in an environment in which spiders were dangerous, in which it would be better to jump back whenever you encountered one. So it is believable that the humans that were afraid of spiders had a better chance of surviving and that therefore many of us are still "wired" to fear spiders.
Why the need for GENETIC hard-wiring for fear of spiders? :confused:

The argument doesn't hold water unless you can show that arachnophobia runs in families rather than popping up in a random fashion independent of blood-lines.
 
  • #11
It may very well be more frequent in certain families. It is of course not a simple matter since people can also learn to cope with fears or to lose them. In fact fearing spiders is something that would be best to unlearn for most people and I assume many succeed. This will make tracing a genetic disposition by looking at the frequency of occurrence within families problematic since it may be shadowed by other traits like good coping mechanisms.

I do not see how something like this could be not genetically determined. Of course there is also an influence from your surroundings and the situation in which you live so that you can adapt yourself to your specific situation after you are born (i.e. you learn things), but it seems very unlikely that fearing spiders is something you learn. It is nature or nurture I do not see a third possibility, and since I do not believe it is something you learn I believe it has to be built in. The only question is why would this be in our genome.
 
  • #12
" It is nature or nurture I do not see a third possibility, and since I do not believe it is something you learn I believe it has to be built in. The only question is why would this be in our genome."

Why do you think there isn't a 3rd possibility?
A child isn't a sort of automaton which only develop personality traits as direct consequences of genetic material and parental guidance; they also develop personalities through a combination of their personality and personal experiences That is, different personalities will react differently to the same experience, propelling different persons along different courses. That we may state that an actual experience remains necessary in addition to their given personality (by genes, to some extent) doesn't mean anything more that the given person wouldn't have developed in that particular direction if the experience hadn't happened.

Children do not have to be taught everything they'll think from their parents, nor does genetic make-up alone shape their personality, personal experiences on their own is at least as important.
 
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  • #13
I think its common sense to fear things that have been known to bite WITH venom.
 
  • #14
arildno said:
" It is nature or nurture I do not see a third possibility, and since I do not believe it is something you learn I believe it has to be built in. The only question is why would this be in our genome."

Why do you think there isn't a 3rd possibility?
A child isn't a sort of automaton which only develop personality traits as direct consequences of genetic material and parental guidance; they also develop personalities through a combination of their personality and personal experiences That is, different personalities will react differently to the same experience, propelling different persons along different courses. That we may state that an actual experience remains necessary in addition to their given personality (by genes, to some extent) doesn't mean anything more that the given person wouldn't have developed in that particular direction if the experience hadn't happened.

Children do not have to be taught everything they'll think from their parents, nor does genetic make-up alone shape their personality, personal experiences on their own is at least as important.

I agree with what you say here. But there is no third influence there; with "nurture" all influences from experiences are meant. What you will eventually become is the result of the complex interaction between the two, for many aspects the influences of “nature” and “nurture” are difficult to trace like your example of personality. Fear of spiders may also be the result of interactions between experience and genetic predispositions, but I do not think that there is a learned component in fear of spiders (but rather that not fearing spiders is learned). So I believe it is innate.
 
  • #15
gerben said:
but I do not think that there is a learned component in fear of spiders (but rather that not fearing spiders is learned). So I believe it is innate.
Where is the information you are basing this on? You've stated this a couple of times, but that is not the current consensus.

There were many more prevalent, lethal creatures and situations that early man had to deal with other than spiders.

Cultural Differences in the Perception of Spiders

"It is possible, of course, that the historical association between spiders and illness might merely represent a rationalization of naturally selected fear of spiders * the real causal factors of which have long since disappeared. However, if this were the case, we would expect fear of spiders to be a relatively universal phenomenon since it should be an inherited feature of the human gene pool independent of individual cultural traditions. Nevertheless, fear of spiders and the association between the spider and disease, infection, and illness found in European tradition is not shared by many communities in other areas of the world.

For instance, in many areas of Africa the spider is revered as a wise creature and its dwelling places are cleaned and protected by the local people (Renner, 1990). In many areas of the world, including Indo-China, the Caribbean, and Africa, and among the Native Americans of North American and the aborigines of Australia, spiders are frequently eaten as a delicacy (Bristowe, 1932, 1945). In some of these areas, those spiders that are trapped and eaten represent some of the most lethally venomous to humans. Native American children in Brazil frequently keep spiders as pets (Renner, 1990). Finally, many cultures consider spiders to be symbols of good fortune rather than fear, e.g. Hindus in eastern Bengal collect spiders to release at weddings as a symbol of good luck, and in Egypt it is common practice to place a spider in the bed of a newly married couple (Bristowe, 1958).

This evidence suggests that fear of spiders may not be a pervasive phenomenon. It may be restricted to Europeans and their descendants (the latter having inherited through cultural transmission the traditions, values, and superstitions of their ancestors from the Middle Ages). Unfortunately, there are no cross-cultural studies of animal fears available which would substantiate this prediction, but the author is currently involved in such a survey covering European, American and Asian populations.

Conclusion

Recent studies of spider phobia indicate that fear of spiders is closely associated with the disease-avoidance response of disgust. It is not immediately clear how spiders might have become associated with this response, although examination of the relevant historical literature does indicate a close association between spiders and illness in European cultures from the tenth century onward. The development of this association between spiders and illness appears to be closely linked to the many devastating and, at the time, inexplicable epidemics that crossed Europe from the Middle Ages onwards. In many areas of Europe, the spider appears to have been a suitable target for the displaced anxieties caused by these constant epidemics; in other cases, its proximity to the real causes of the epidemics may have fostered opportunistic associations between spiders and disease.

The tendency of Europeans and their descendants to be fearful of spiders does not seem to be shared by people in many non-European cultures, and this is not consistent with those evolutionary accounts of spider fear which suggest that spider fear should be a common feature of the human gene pool regardless of culture (e.g. Seligman, 1971). However, it is consistent with the present thesis which argues that spider fear developed as a result of the association between spiders and disease in Europe after the tenth century."

http://www.psyeta.org/sa/sa2.1/davey.html

Are many spiders poisonous to humans?

No! Most are too small to bite through skin, venom not adapted to humans, too little venom, not in same place as humans. All bites have 2 fang marks.

In US, only four groups are poisonous. Black widow, brown recluse, hobo spider, yellow sac spider*.

http://www.entomology.cornell.edu/Faculty_Staff/Rayor/Spiders/FAQ.html
 
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  • #16
Evo said:
Where is the information you are basing this on? What literature throughout history can you post here supports that there was enough widespread fear of spiders being lethal to humans that it could cause this innate fear that you are suggesting?

I am basing this on the reasoning that I explained in my previous posts. I am suugesting that among the early ancenstors of humans in Africa the ones that feared small "creepy crawlers" had higher survival chances, and that therefore some of that is still in the genepool of current humans.

I think that the people in cultures that like spiders have learned to do so. The other option would be that people that fear spiders have learned to do so. I do not believe that people fearing spiders fear them because their social environment has indoctrinated them that spiders are dangerous disease bringers, as Davey suggests. I think it is exactly the opposite: people tell you that you should not fear them. The cultural differences Davey points out probably exist because the social environment in some cultures learn young people not to fear spiders but to see them as a delicacy, fortune bringers etc.

Evo said:
There were many more prevalent, lethal creatures and situations that early man had to deal with other than spiders.

Yes and those probably also still have an impact. There many more things that we fear.
 
  • #17
Evo said:
Where is the information you are basing this on? You've stated this a couple of times, but that is not the current consensus.

There is no consensus about this, there are different opinions on this issue. Hitssquad has posted some links (in post #3 of this thread) to people who believe it is genetic. I have also read this opinion in Steve Pinker's book "what the mind is" and in more places.
 
  • #18
gerben said:
There is no consensus about this, there are different opinions on this issue. Hitssquad has posted some links (in post #3 of this thread) to people who believe it is genetic. I have also read this opinion in Steve Pinker's book "what the mind is" and in more places.
You didn't read his links, did you?

The first link to an article in National Geographic states "McNally questions, for example, whether mammals really have evolutionary cause to be afraid of spiders. Only 0.1 percent of the 35,000 different kinds of spiders in the world are poisonous, he noted.

Öman acknowledged that more research is needed to bear out the findings of the new study, but he contends that a fear of snakes, at least, seems to be shaped by evolutionary influences."

His second post discusses mostly religion and does not address the fear of spiders.
 
  • #19
Oh ok, Indeed I did not read them, still this idea can be read in many places, and I have never read or heard arguments that I find convincing that claim that these fears are not in our genes. Where would they come from?
 
  • #20
gerben said:
Oh ok, Indeed I did not read them, still this idea can be read in many places, and I have never read or heard arguments that I find convincing that claim that these fears are not in our genes. Where would they come from?
Perhaps you are thinking more along the lines of instincts for self preservation. We automatically respond to anything that could potentially harm us. How much of this response is in relation to what we have learned to be dangerous or what we might "know" to be dangerous without being taught is an interesting question.

Spiders being "genetically hardwired" as a threat seems "iffy" to me. It doesn't mean it's impossible, but when you look at the actual threat they posed to humans, and comparing it to other life threatening situations our ancestors dealt with I can't imagine spiders being on the same level as a bear, wolf, tiger, lion, or disease and infection.

Still, fear of spiders is one of the more common fears in Western culture. It's an interesting topic to discuss. It seems to be culturally bred into people, so will it one day actually become "genetically hardwired"?
 
  • #21
But we are also afraid of bear wolf tiger, if you would run into one in the streets I bet it would scare you. Disease and infection are not easily visible, but people do fear situations that can easily make them sick, like dirty sewers, although disgust is probably the more common emotion associated with such situations. I think fear is a more appropriate emotion when it is important that you get away from "it" quickly. Long ago when our ancestors were hunter-gatherers, spiders, ticks, centipedes, snakes and so on were probably really significant threats.

I do not understand what you mean by "culturally bred into people", culture may evolve in its own way, but it does not get into our genome (that would be Lamarckian). I would be really interested in any explanation of where it could come from other than our genes as it is clearly not learned.

Here is short quote from Pinker’s book:
S. Pinker (from: how the mind works) said:
D.O. Hebb found that chimpanzees born in captivity scream in terror when they first see a snake…[cut]…Marks and the Psychiatrist Randolph Nesse argue that phobias are innate fears that have never been unlearned. Fears develop spontaneously in children. …[cut]… Between the ages of three and five, children become fearful of the standard phobic objects – spiders, the dark, deep water, and so on – and then master them one by one. Most adult phobias are childhood fears that never went away. That is why it is city-dwellers who most fear snakes.
 
  • #22
I know where I learned the fear of spiders from, my Mother. I was bitten by a American funnel web spider, Agelenopsis aperta when I was small. I had quite a sever allergic reaction. Both my Mother and my Grandmother would launch a all out screaming, swatting, spider war, when one was spotted in the house.
My children learned the frantic screaming spider dance from me. Tho only one of my children is venom allergic, I passed this fear to both of them.
 
  • #23
I think a lot of you are doing the mistake of confusing normal fear with phobia. They're two very different things. Seeing a lion in front of you will trigger an emotion, because you know your life is in danger, and you have to get away. But people who are arachnophobic don't really feel threatened by spiders - and they certainly realize that they're completely harmless. Though phobia is often described as an irrational fear, I can assure you that normal fear and phobia are two separate emotions.
 
  • #24
Flexor said:
I think a lot of you are doing the mistake of confusing normal fear with phobia. They're two very different things. Seeing a lion in front of you will trigger an emotion, because you know your life is in danger, and you have to get away. But people who are arachnophobic don't really feel threatened by spiders - and they certainly realize that they're completely harmless. Though phobia is often described as an irrational fear, I can assure you that normal fear and phobia are two separate emotions.
Very good post Flexor.
 
  • #25
Flexor said:
I think a lot of you are doing the mistake of confusing normal fear with phobia. They're two very different things. Seeing a lion in front of you will trigger an emotion, because you know your life is in danger, and you have to get away. But people who are arachnophobic don't really feel threatened by spiders - and they certainly realize that they're completely harmless. Though phobia is often described as an irrational fear, I can assure you that normal fear and phobia are two separate emotions.

That's a very good point to make. The irrational fear is when you know the spider is just an ordinary spider that makes its way into houses, and is not poisonous to humans, and not even likely to bite you, but you are afraid of it anyway.

I have my mother to thank for my fear of spiders. I'm not terrified of them, well, except the ones that find their way inside about once a year and are about the size of a mouse (those really get my adrenaline pumping when I have to chase them back outside; they're too big to squash), but I don't want to touch them. This is not an innate fear. When I was a child, I used to play with spiders all the time. I had no fear at all of any kind of bug and found them fascinating and fun to pick up and let walk on my hands and arms. Then my mother started squawking about me playing with spiders and told me I was going to get bitten one day if I kept playing with spiders. Rather than find out whether there were any venomous spiders in our area and to just teach me to identify those (I don't think there were any to worry about there, at least nothing that would do more than make you itch if it bit you), she scared me into thinking that any spider I might pick up could bite me and kill me. It's so damn frustrating because I KNOW there is nothing harmful about them, I KNOW I used to play with them and had no fear of them, I KNOW I've never been bitten by a spider I've picked up, I KNOW nothing will happen if I pick up a spider now, yet just scooping a spider onto a dustpan to relocate it back outside (I try not to kill them since they do eat other insects) gets the adrenaline rushing so badly my heart pounds and my hands shake. What's even more frustrating is that if I know I learned this response, why can't I unlearn it?! Why can't I learn to touch spiders again without that fear? The hardest part will be if I have children of my own, to not let them see that fear so that I don't inflict them with it too.

Now, maybe the evolutionary adaptation is not a specific fear, but the rapidity through which we learn to fear the same things our parents fear. This would make sense, that whatever threat there is in the environment, offspring need to learn that quickly by observing their parents' fearful responses in order to avoid those threats themselves.
 
  • #26
But most people who fear spiders do not have such experiences with mothers telling them spiders are dangerous. Most people are told spiders are not dangerous yet they still fear them.
 
  • #27
gerben:
You are making an extremely unreasonable assumption here:
Europeans and North-Americans behave more "naturally" than Africans!
This is getting silly; don't you see how tenuous your whole claim has become?
 
  • #28
I just think some people unlearn those fears and others do not, you can call unlearnig those genetic predispositions "more natural" if you like but that does not add anything.

"Most adult phobias are childhood fears that never went away. That is why it is city-dwellers who most fear snakes." S. Pinker

What is you alternative, do you think that the difference is because the fear of spiders is something that people in Europe and in North America learn, but that is not learned by people in Africa?
 
  • #29
You are still thinking of "learning" in terms of having been specifically TOLD something; why do you do this?
 
  • #30
No I do not think you have to be specifically told, just learned in whatever way possible. You can give me any way in which this fear would be learned to convince me. For now I simply think you do not learn this but are born with it, although many people unlearn it.