Hi hypervalent_iodine & iNow.
Thanks for your responses and your help.
I have read the paper in that I started to but I was lost very quickly in what it was about. I'm not familiar with meta-analysis but Googling since saw that it's a study of studies...?
What I was after I think was what iNow had stated. Just wanted to get a sense of it. I don't expect to hold a detailed discussion. Just wanted to know what it was generally about.
So in short, my friend did a study of a bunch of other people's studies and saw that some parts of the brain were smaller for PTSD suffers but isn't enough information to definitely be sure that the smaller brain parts cause PTSD? Is that right? I'll look to do a search on those brain parts but are the parts of the brain affected important with regards to PTSD?