What you expect to happen-really, what you want to happen, at least in most situations-is a model you generate, using what you already know, in combination with what you are learning while you act. The hippocampal comparatorllO constantly and "unconsciously" checks what is "actually" happening against what is supposed to happen. This means that the comparator contrasts the "unbearable present," insofar as it is comprehended (because it is a model, too), against the ideal future, as it is imagined; means that it compares the interpreted outcome of active behavior with an image of the intended
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