Yes, please provide the cite to the referenced study. OP would like that very much.
Meanwhile, here is a cite to the OP’s scientific wild-ass guess (SWAG).
http://freerepublic.com/focus/f-chat/3769071/posts
And then I did a search.
You guys really need to “internet” more. (See how I used a noun as a verb? That is the new millennial thing. LOL.)