What's the difference between men and women well how do they differ well the first thing we might observe is that if you look at personality differences between prepubescent boys and girls they're not very large boys and girls don't differ in terms of their their trait neuroticism for example what happens is that when puberty kicks in women's trait neuroticism Rises and it stays higher than men for the rest of their life and this is why you see this reflected in the different kinds of psychopathology that we set the two sexes so men are over-represented in alcoholism drug abuse antisocial personality and a host of learning disorders as well as that attention deficit disorder and women are over-represented in depression and anxiety primarily that seems to be tightly associated with higher levels of trait neuroticism because maybe it's if you're at the 95th percentile or higher let's say in trait neuroticism there isn't much different than difference between that and being somewhat prone to depression and anxiety and because the curves overlap you know the curves aren't identical the normal distributions are identical for men and women you tilt the one to the to the right to the women's curve to the right towards higher levels of neuroticism you go out you look for the person in 20 who has the highest levels of negative emotion it's much more likely to be female than male okay so let's see if we can figure out why so we're going to tell you some things basic differences between men and women and you can tell me what you think about it if you or if you agree or disagree okay first size differential emerges between men and women at puberty right because boys and girls are roughly the same size and roughly the same strength but men get bigger at puberty when the testosterone kicks in and more importantly not only do they get taller and heavier but their upper body strength is much higher and that's a real issue for for combat because human beings punch there's other animals to do that kangaroos do that too way so we're not the we're not the only people that punch but we have clubs on the ends of our arms and so that's how we defend ourselves and so if you have a lot of upper body strength especially short across the shoulders and you're heavier then you can step into the punch and it's a lot more devastating now it is the case that if you look at the statistics for physical altercations in marriage women attack their husbands more often husbands attack their wives well you think why is that well let's assume that there isn't any reason other than both people in a relationship can get upset and the women know that if they hit their husbands nothing's really going to happen right because if you're a rel you know if you're a woman about that high and your husband is say my height your unless you hit me with an object or something that sharp the probability that you're gonna do me any serious damage is pretty low you might hurt me but if I do the reverse and hit you and I really hit you and so the reason at least one of the reasons why women can be more physically aggressive in minor ways in a relationship is because everyone knows the wife and the husband equally that the consequence of the physical aggression is much more limited so men do more serious damage to women but women are more aggressive in relationships so that's interesting so okay so there's a ball there's a body size difference that's important a strength differential that's important next thing I think so let's assume that the reason that women are higher in sensitivity to negative emotion is because the world is actually more dangerous to women right because that would be the most logical reason why there would be a sex difference in a sex difference in it something like fear or sensitivity to punishment well first there's the danger of physical altercation second there's the sexual danger so women become sexually vulnerable at puberty and why do I say vulnerable well it's straightforward it's because the cost of sex for women is way higher than it is for men or it certainly has been throughout our evolutionary history because if a man has an unwanted sexual encounter well then he walks away and maybe he's persecuted by the state or prosecuted by the state for it but if a woman has an unwanted unwarranted or incautious sexual encounter and she ends up pregnant then well in traditional societies that's you're just done and even in modern societies that are rich like ours you're it's it's a I don't have to go into that it's big trouble no matter what you do about it it's big trouble so being being more nervous about that makes perfect sense but then here's the last thing and I think that woman's nervous systems are not adapted to women I think woman's nervous system are adapted to the mother-infant dyad and because you are not the same creature when you have an infant not at all you're way more vulnerable and it's partly because you have to express their vulnerability of the infant and you also have to care for it right so you think about an infant especially under nine months so let's say how are you going to be wired up if you're going to optimally care for an infant under nine months and I'm saying under nine months because women generally do the bulk of child care for infants who were under nine months old and part of the reason for that there's a whole host of reasons but part of the reasons for that obviously is that they breastfeed but imagine what you need to be wired up biologically in order to care for an infant first of all they're very demanding right because they're completely helpless and they're demanding 24 hours a day and it's quite it's quite it's quite a emotional load and an infant under nine months is never wrong right what you do to an infant under nine months is when they're in distress you always respond you never tell the infant get your act together and stop whining right which you can do say to an into a child that's 18 months old you can start having that sort of conversation but under nine months it's like nothing is the infant's fault it's surrounded in an extraordinarily threatening world and you have to be responsive to what it needs regardless of what you want and you have to be very sensitive to the threats that emerge in the environment and so I think the price that women pay for that ability to have an intimate relationship with infants in the very earliest stages of development is that their nervous systems are actually wired so that they can perform that role optimally and the disadvantage to that is that having a temperament like that doesn't work that well when you're dealing with adult men especially when you're dealing with them and in a business environment because it's not the same thing not at all it's a competitive environment so okay so agreeable people are compassionate and polite what are disagreeable people like they're tough minded they're blunt they're competitive and they won't do a damn thing they don't want to do so it isn't exactly that they're aggressive although they will push you the hell out of their way if you're in the way they're not they're not like volatile like you are if you're high in in rhotacism it isn't defensive aggression it's more like predatory aggression its dominance behavior and so for someone who's hyah who's high highly disagreeable they look at the world as a place in which they can compete and win and I'll tell you a story I have a friend I gave him my personality test the big five aspect scale that Colin DeYoung developed in my lab and I knew he is a disagreeable guy and by interacting with him I mean he's even rude to people sort of spontaneously on the street I actually liked him quite a bit he's very very funny he's also very conscientious so you can trust him but it's disagreeable as hell and so I gave him this test because I thought it would be funny and he came out as the most disagreeable person in 10,000 so reasonably reasonable in compassion about 30th percentile but like Oh point zero zero one in politeness so he's extraordinarily blunt and he'll just say absolutely anything no matter how horrible it is and he was often brought in to corporations to sort of clean them up so if a corporation was tilting and not doing well they'd bring him in to find out who the useless people were and fire them and I talked to him about that because I've had the missed opportunity to have to not have graduate students in my lab for example that weren't performing well and I'd find it very very difficult to you know dress someone down and certainly difficult to fire them I just hate it because I'm actually quite an agreeable person much to my chagrin and I asked him about that and I said well what do you do you have to fire people all the time how do you handle that he says handle it I enjoy it and I thought wow that's so interesting that someone would have that response I said well what do you mean you enjoy it he said look I go into these companies and I analyze the performance of groups of people right and there's in those groups there are people who are really striving really trying hard and working themselves really hard and being productive and then there's these people that are just doing nothing they're completely in the way they don't carry their weight at all they take advantage every chance they get and they're always whining about why they can't work it's like I find out who they are I call them into my office and I tell them exactly what they've been doing it's like hit the road buddy you've had your you've had your run of it and I thought oh yeah okay fair enough you know well I can tell you you know I've had situations in my lab where I had performing graduate students and one of the things that was really awful about that was that it was really hard on the high performing graduate students you know because they felt that even being in the same category as the people who weren't working hard and pulling their weight devalued what they were doing you know and that's exactly right and so this is also why there's there's a conscientiousness trait and it agreeable this trait because conscientious people judge you on your accomplishments right they don't give a damn about your feelings not a bit it's like are you doing the work or not whereas agreeable people think well you know your mother's sick and you know you've you've got a bunch of family problems and and we all have to take care of each other and it's no wonder that you're having a rough time and like you can't say that one of those attitudes is correct and the other isn't correct you can't say that there wouldn't be those two dimensions if there wasn't something correct about both of them but you can certainly point out that often they conflict you know and so the demand for for inclusiveness and unity and care and the demand for high level performance in a hierarchical structure there are very different orientations in the world and so it's complicated for people who are agreeable and conscientious and actually I think often that large corporations and large large institutions of any sort run on the unheralded labor of people who are high in agreeableness and high in conscientiousness and they're disproportionately women and my experience in large institutions has been that if you want to hire someone to exploit appropriately no not appropriately if you want to hire someone to exploit productively you hire middle-aged women who are hyper conscientious and who are agreeable because they'll do everything they won't take credit for it and they won't complain and that's nasty and I think that happens all the time and so one of the things you have to be careful of if you're agreeable is not to be exploited because you'll line up to be exploited and I think the reason for that is because you're wired to be exploited by infants and so that just doesn't work so well in that actual world and one of the things one of the things that happens very often in psychotherapy you know people come to psychotherapy for multiple reasons but one of them is they often come because they're too agreeable and so what they get is so-called assertiveness training although it's not exactly assertiveness that's being trained what it is is the ability to learn how to negotiate on your own behalf and one of the things I tell agreeable people especially if their conscientious is say what you think tell the truth about what you think there's gonna be things you think that you think are nasty and harsh and they probably are nasty and harsh but they're also probably true and you need to bring those up to the forefront and deliver the message and it's not straightforward at all because agreeable people do not like conflict not at all they smooth the water you know when you can see you can see why that is in accordance with the hypothesis that I've been putting forward you don't want conflict around infants it's too damn dangerous you don't want fights to break out you don't want anything to disturb the the relative peace you know and if you're also more prone to being hurt physically and perhaps emotionally you also may be loath to engage in the kind of high-intensity conflict that will solve problems in the short term because a lot of conflict it takes a lot of conflict to solve problems in the short term and you know if that can spiral up to where it's dangerous which it can if it gets uncontrolled it might be safer in the short term to keep the water smooth and to not delve into those situations where conflict emerges the problem with that is it's not a very good medium to long term strategy right because lots lots of times there are things you have to talk about because they're not gonna go away and so partly what you do with agreeable people is you get them to figure out and they have a hard time with this too if you ask a disagreeable person what what he wants say or she wants they'll tell you right away they know it's like this is what I want and this is aren't going to get it but agreeable people especially if they're really agreeable are so agreeable that they often don't even know what they want because they're so accustomed to living for other people and to finding out what other people want into trying to make them comfortable and so forth that it's harder for them to find a sense of their own desires as they move through life and that's not look there's situations where that's advantageous but it's certainly not advantageous if you're going to try to forge yourself a career that just doesn't work at all so you
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