From reading, it seems to be two schools of thought that can be viewed as either completely separate or intertwined.

A recent article I read dealt with Object Relations, which I believe comes from psychoanalysis.

In some of it, it stated we potentially have naturally high agressive and/or other limbic responses with respect to "nons," which throws our development awry.

If this were true, then no, we never fully recover in the sense that we become normal because there's a biological abnormality.

Does it matter? This is the more relevant question, I believe. If you are able to maintain your emotions and live a happy life, it really doesn't matter.

If this supposed brain abnormality were to be real, you would have overcome it in much the same fashion that some people without arms and legs become olympians, while "normals" in America are nowhere near.