There have been studies done in samples of twins which have shown that neuroticism scores are genetic. Well, they're people who would tend to see problems in life rather than solutions. And some people clearly do find that doing certain things, perhaps to do with their job, perhaps to do with their social life, causes them more anxiety, more concern, stresses them more than other people who can deal with all sorts of complex arrangements and difficulties in their life without really feeling particularly affected by it. It's a similar measure and we do find that the harm avoidance scale correlates quite highly with neuroticism in our patients. Given you're looking at brothers and sisters, rather than at twins - why couldn't it be just the fact that you've grown up in a house where these neurotic traits were predominant, and you've learnt them from your parents.
Early environment is an important aspect of the way anyone views the world.
We haven't shown it's genetic yet, we're just saying it's familiar at the moment. That appears to be familiar as well. The reverse of these findings are that there are some things which depress peoples score significantly lower on, these are things like sensation seeking and extroversion, and we find that the siblings of our depressed patients are also significantly different on these other measures. So this is how outgoing they are - how willing they are to go and get new experiences in their lives, and so on. That's right, yes.