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“Out of the myriad events that take place during a typical day, we select information to remember based on its emotional intensity. During sleep, this information is both consolidated into long-term memory and integrated into existent memory, while the emotionality attached to the memory is assimilated and fades over time. It is as if a major purpose of emotion is to tag an event as something important for us to remember, and once this purpose is served, the emotion can attenuate.” — Leslie Ellis
Out of the myriad events that take place during a typical day, we select information to remember based on its emotional intensity. During sleep, this information is both consolidated into long-term memory and integrated into existent memory, while the emotionality attached to the memory is assimilated and fades over time. It is as if a major purpose of emotion is to tag an event as something important for us to remember, and once this purpose is served, the emotion can attenuate.