Yesterday I made a guess: That perhaps there is a lock in some income classes - that there may be a trend that could get them stuck in there. But it's only a guess, I have no proof for such afirmation.So are there cognitive differences for people on different income classes (such as rich and poor) that somehow get them stuck in there?I'm not sure if this question is really on-topic here, but I guess this site could be a first trial. There's also something that I'd like to point out: My native languange is not english, and I've experienced sensitivity when dealing with such matters with inapropriate words: If my words were inapropriate, I didn't mean to be mean, I just don't have a good vocabulary. I also really don't know how to tag this question - If you know better tags, please edit. 
What cognitive properties change as the income vary?
conditioning