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Thread: Genetic Variations Show That Men and Women Think Differently

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    Genetic Variations Show That Men and Women Think Differently

    June 20, 2008

    Scientists say genetic variations show that men think differently

    Sexes preprogrammed with different skills

    Women and men may genuinely think in different ways, according to research that has found subtle genetic variations between their brains.

    Hundreds of genes that are switched on and off differently in the male and female brain have been identified, suggesting that many patterns of behaviour regarded widely as typical of each sex could be founded on nature as well as nurture.

    Dozens of mental traits and skills are said to differ between men and women. They include empathy, aggression, risk-taking, navigation and the qualities that are valued most in a sexual partner.

    The existence of such differences is now widely accepted, but natural and social scientists have long disagreed about the extent to which they are rooted in our underlying biology, or are learnt through male and female social roles. Women are generally more accomplished than men at empathising with other people, and usually score as more compassionate on standard personality tests.

    Men are more prone to aggression and risk-taking behaviour, and tend to be proficient at understanding and devising systems, from car engines to the offside law.

    While there are no sex differences in general intelligence, women tend to have stronger visual memories, while men are more proficient at visualising objects when rotated in space. It has been suggested that this may reflect the way most men like to navigate by reading maps, while many women prefer to remember landmarks.

    Such observations have led Professor Simon Baron-Cohen, of the University of Cambridge, to suggest the existence of “empathising-type” and “systemising-type” brains, the first of which is more common among men and the second among women. Professor Baron-Cohen said: “This is a very original study, testing which genes are expressed differently in males and females across different primate species. It confirms the supposition that genetic sex differences are expressed not just in the secondary sexual characteristics in the body, but in the brain.

    “Finding genes that are conserved across species points to the evolution of these genetic sex differences, and finding them in the brain suggests that they may in part influence the way the mind works, and in part influence our behaviour.”

    Men and women also differ in their approach to finding sexual partners. Men generally place a higher value on youth and good looks, while women are often more attracted by status.

    The new study, led by Elena Jazin, of the University of Uppsala in Sweden, does not directly prove that any of these traits is related to differences in gene activity, but it shows a contrasting genetic architecture of male and female brains that could plausibly contribute.

    While the two sexes have the same basic genes, many of these are more active in the brains of only one sex. These gender-specific patterns of gene expression could affect many aspects of behaviour, the researchers said.

    “The obvious question to follow is whether or not these signatures of sex in the brain have physiological significance for brain physiology and/or behaviour,” they wrote in the journal Public Library of Science Genetics.

    “Our results suggest that variation in expression of genes in the brain may be an important component of behavioural variation within as well as between species.” The differences could also explain sex variations in mental health and neurological diseases: women, for instance, are more at risk of depression and Alzheimer’s.

    “Knowledge about gender differences is important for many reasons,” Dr Jazin said. “For example, this information may be used in the future to calculate medical dosages, as well as for other treatments of diseases or damage to the brain.”The scientists said that their work needed to be followed up to examine whether any human behavioural or health differences were related to the sex-specific gene expression profiles.

    http://www.timesonline.co.uk/tol/new...cle4175612.ece
    I wonder what's so new about this? It's a known fact, can't these scientists comes up with something new?
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    Quote Originally Posted by Hanna View Post
    I wonder what's so new about this? It's a known fact, can't these scientists comes up with something new?
    They need to justify their funding somehow.

    The odd occasional "no shit Sherlock" seems to appease those who fund.
    "The only way to get smarter is to play a smarter opponent."

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    Quote Originally Posted by Hanna View Post
    I wonder what's so new about this? It's a known fact, can't these scientists comes up with something new?
    True, but a welcome change from the pseudo-scientific claims that differences between male and female behavior come entirely from taught behavior, and that there are no inherent genetic differences between the way men&women think. The level of retardation may be worse in the US than Europe, a few years ago the president of Harvard was forced out for this, mentioning that when he gave his daughter trucks to play with she treated them as dolls.
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    True women think differently than men, but it does not indicates women are less brainy than men, women and men would approach a set of problems differently that all.
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    Quote Originally Posted by Hanna View Post
    True women think differently than men, but it does not indicates women are less brainy than men, women and men would approach a set of problems differently that all.
    Lol, how many times has this been dealt with on this forum? Women ARE less brainy then men, on average, by about 4-5 IQ points. The difference is especially pronounced at the "gifted" range, where men vastly outnumber women. The fact that males and females also think differently has merely served to enhance and magnify the effects of the intellectual and psychological differences that are also present. If you think about it a little bit, it makes good logical sense, considering that males have been responsible for about 98% of all creative achievement throughout history. Read Charles Murray's book "Human Excellence" and you'll see what I'm talking about...

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    Quote Originally Posted by MockTurtle View Post
    Lol, how many times has this been dealt with on this forum? Women ARE less brainy then men, on average, by about 4-5 IQ points. The difference is especially pronounced at the "gifted" range, where men vastly outnumber women. The fact that males and females also think differently has merely served to enhance and magnify the effects of the intellectual and psychological differences that are also present. If you think about it a little bit, it makes good logical sense, considering that males have been responsible for about 98% of all creative achievement throughout history. Read Charles Murray's book "Human Excellence" and you'll see what I'm talking about...
    The term WOMEN is wide definition, which women we are discussing here? The American WOMEN, or Swedes WOMEN, Norwegian WOMEN,Finish WOMEN,African WOMEN, Chinese Women, English WOMEN, ETC? These women varies based on their age, education, nationality and ethnicity or even race. So you really think all these women are intellectually the same? And who are you comparing these women with? With the African MEN, American MEN, Chinese MEN Latin MEN, English MEN. Do you really think African MEN much more intelligent than Scandinavian women? So excuse me, the defination of MEN and WOMEN is wide as ocean.. And also are you comparing homosexual MEN with all these WOMEN? So the category of MEN and WOMEN is soooo wide to make comparison with, because it often changes according to time and space.LOL

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    Quote Originally Posted by Hanna View Post
    The term WOMEN is wide definition, which women we are discussing here? The American WOMEN, or Swedes WOMEN, Norwegian WOMEN,Finish WOMEN,African WOMEN, Chinese Women, English WOMEN, ETC?
    Well, given that this is a Germanic preservationist forum I'm primarily focusing on these types. That's my main area of interest.


    These women varies based on their age, education, nationality and ethnicity or even race.
    That's true.


    So you really think all these women are intellectually the same?
    No. That's actually not what I said.


    And who are you comparing these women with? With the African MEN, American MEN, Chinese MEN Latin MEN, English MEN.
    I wasn't comparing the women of a certain ethnic or racial group with the men of another, I was simply using the same generalized categories from the study. The most reliable research indicates that males are about 4-5 IQ points more intelligent than females, on average. The precise difference probably varies depending on the ethnic/racial group in question; in Northern European and East Asian groups, the differences are the most pronounced between the males and females. In other groups, such as Blacks, in all likelihood the differences are smaller.


    Do you really think African MEN much more intelligent than Scandinavian women? So excuse me, the defination of MEN and WOMEN is wide as ocean.
    No, African males aren't more intelligent than Scandinavian women, not by a long shot. I wasn't trying to claim any such thing.

    The definition of 'men' and 'women' is not as 'wide as the ocean', but I suppose it's legitimate to state that the intellectual capacity of women from certain ethnic/racial groups are higher than those of others. And, as I said, it's also probably the case that the degree of difference varies between groups. In the US, for example, the "pay gap" (as it's often called) is the most pronounced between White males and White females, and considerably smaller between other groups (such as Blacks, for one). If further research should conclude that this is due to the unique differences between male/female intellectual capacity within specific groups, I wouldn't be at all surprised...

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    Yeah, men are smarter...

    ... we won't go there.
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    Why is a woman's brain smaller than a man's?

    Maybe because she is a fox.

    Why do women have smaller brains than men?
    Male brains weigh around 1.25kg; female brains weigh on average 100g less.

    One possible answer comes from an unexpected study of foxes. In 1959 Dmitri Belyaev, a Russian geneticist, launched a long-term experiment to tame foxes. Starting with a population of caged wild animals, he selected from each generation the puppies who were friendliest (or, initially, least hostile) to humans, breeding only from them.

    After 35 generations he produced animals that had been transformed from the usual snarling fearfulness of wild foxes into animals that were similar to domestic dogs. The tamed foxes wagged their tails, whined for affection, were submissive, barked like dogs and their ears flopped. As Darwin said: “Not a single domestic animal can be named which has not in some country drooping ears.” Belyaev seems to have concertinaed all this into 50 years when it took 10,000 years to domesticate wolves as dogs.

    And the tame foxes’ brains were smaller. Domestic animals generally do have small brains. On average, domestic dog, cat, sheep and pig brains weigh 25 per cent less than those of wild animals. The mechanism remains a mystery. A recent study by Elena Jazin and her colleagues from Uppsala University in Sweden, published in Current Biology, reported that of 30,000 brain genes about 40 showed differences between tame and wild foxes. All we do know is that blood levels of stress hormones are lower in tame than wild animals and that brain levels of anti-stress hormones are higher.

    But would it be dangerous to suppose that women’s brains are smaller than men’s because, over the millennia, we men have been selecting friendly women with whom to breed? And that therefore we have domesticated them? And that they, in turn, have selected assertive men? Interestingly, human skulls of both sexes have been shrinking over the past few tens of thousands of years, suggesting that as human beings have been increasingly domesticated, so they have shrunk their brains — without losing the gender difference.

    One force that drives up brain size is social interaction. It was Robert Trivers, the biologist, who showed in his 1985 book, Social Evolution, that there is a direct correlation between the size of a species’ brain, the size of its social groups and the degree of social interaction between the animals of the group. Men and women inhabit different social spheres, and though women may enjoy deeper social interactions than men, it is probably men who, as tribal leaders, have experienced wider social interactions over evolutionary time.

    In any event, small brain size seems to optimise emotional intelligence. In a paper published last month in Current Biology, Brian Hare and his colleagues at Harvard University showed that domesticated foxes were better than wild foxes at reading human social cues. For example, domesticated foxes instinctively understand a person’s intention when he or she points at an object and they investigate it. Social intelligence, therefore, seems to be increased when fearfulness and stress are lowered by selective breeding for tameness. Certainly our border terrier at home, Rusty, is uncanny in his ability to understand our intentions (when he wants to).
    And then there is body size. Irrespective of other factors, there is a direct correlation between the size of an animal’s body and its brain. We human beings have haremic tendencies, so women are smaller than men. So their brains are too.

    Does any of this matter? A recent paper in the British Journal of Psychology by Paul Irwing, of the University of Manchester, and Richard Lynn, of the University of Ulster, claims that more men have very high IQs than women do. But IQ tests remain so controversial and so subject to cultural factors that we will need another half century before fully understanding them. Not only that, we also simply do not know enough about our brains to draw safe conclusions from any of these observations.

    But what I do know is that such speculations are dangerous in the academic world. Lawrence Summers, the President of Harvard, lost his job when he conjectured that women might not scale the same intellectual heights as men, so for me to continue this theme might be perilous.

    Terence Kealey
    Vice-Chancellor of the University of Buckingham

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    Quote Originally Posted by Elysium View Post
    Yeah, men are smarter...

    ... we won't go there.
    Get over it, the question is not who smarter than who, but the category of men, and women. If you don't get this simple definitions what the point even saying it. Yeah I see those men sells hot dogs in front of wall street definitely more smarter than those women working as CEO in share markets.. Yeah they surely smarter SIR
    Jeg er over gjennomsnittet bitter, og liker stort sett ingen andre enn meg selv


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