The visual experience that results from a flow of information that originates in the world is called vision; the visual experience that results from a flow of information that originates in memory is called mental imagery; and while both kinds of experiences are produced in the visual cortex, it takes a great deal of vodka before we mix them up.24 One of the hallmarks of a visual experience is that we can almost always tell whether it is the product of a real or an imagined object. But not so with emotional experience. The emotional experience that results from a flow of information that
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