In the brain are specific regions and networks dedicated to detecting inconsistencies between current experience and existing conscious or near-conscious knowledge. This is a familiar experience, as when you encounter an acquaintance and sense clearly that something about his appearance has changed but cannot identify what the difference is, and you feel your mind persistently searching for it until suddenly you realize his moustache is gone. Neuroscientists usually describe this well researched function as “error detection,” but in the more complex realm of psychotherapy it seems more fitting
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