Anything learned independent of reasoning powers *cannot* be unlearned by reasoning! Our emotional system prevents us from unlearning those things as a way of preserving "tribal" customs and protecting the greater society. .......
I disagree with the above and the model that produced it. This particular model fails to take into account the fact that emotions and reasoning interact in ways that modify both emotion and reasoning. There are multiple scripts or voices that compete with one another in our minds. Certainly some of those scripts are dominated by emotional voices and some by purely rational voices, but they contain both. We need to settle on some definitions and determine what we accept as evidence.
For example: Let's say an outside stimulus to our nervous system is interpreted as a sensation, which in turn produces an emotion we call pleasure. In humans that interpreter lies in the rational part of the brain. During learning, a mental template is produced with a bunch of associations and conditions which must be satisfied in order to feel an emotion.
In that context I need to ask Ira what is meant by "Anything learned independent of reasoning powers....." The proof that this is not the case is the fact that the very same stimulus to the nervous system may be produced by different sources. As a result, different emotions and consequent actions are produced. when exactly the same gentle touch on the arm is furnished by an unknown source, a woman, a man or a snake. Information is combined with sensation to trigger emotion. I would rather say that emotions are hard-wired not learned. The things that trigger emotions are subject to learning and therefore to reasoning. If this were not the case, then a child who is bitten by a dog and feels fear after that, would never grow up to love dogs later in life. But, perhaps I'm just misinterpreting what Ira has said. Terminology in the domain of the mind is very malleable.
[Edited by Ira to correct typo and format long quote and paragraphs]