Dream To Forget

As a second-year medical student, in the neuroscience course, I was assigned an article by Francis Crick and Graeme Mitchison, entitled The Function of Dream Sleep. If I recall correctly, the premise of their theory was that the function of REM sleep is to forget spurious memories, to make room for more relevant memories. If they’re right, then it follows that one shouldn’t try to remember their dreams. (Unfortunately, trying to remember your dreams and recording them in a dream journal is an important tool for achieving lucid dreaming.)

This morning in Science Daily there’s an article about daydreaming to forget. In this article, daydreaming seems to be presented as “mind wandering”; this seems to me to be the result of losing one’s mental vigilance and being distracted, rather than the result of a conscious decision to fantasize. I wonder whether the authors of the 2010 paper referenced the 1983 paper by Crick and Mitchison, and I wonder how the two theories — REM sleep causing forgetting, daydreaming causing forgetting — relate to one another. I’ll have to obtain the paper and find out.

If you like the topic of dreams, I’d suggest you see the movie Inception!

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