Our minds are also designed to string events into story lines, whether or not there is any connection between the parts. In dreams, we regularly weave sensations gathered from disparate parts of our lives into narratives. In full wakefulness, we produce reasons for our actions that are rational, plausible, and guided by the logic of cause and effect, whether or not these “reasons” accurately portray any of the real motivational forces at work. Experiments with people who have suffered a lesion between the two halves of the brain have shown that when the right side is prompted, say, to close a
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