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Could we ever record our dreams?

We may not be able to keep records of our night time imaginings, but we might be able to influence their content

By Philip Ball  

Joseph-Benoit Guichard's Dreams of love:

In the movies—in films like Inception and Brazil—dreams look like, well, movies. But how much “visual” information do your dreams really contain? When you think about it, even familiar faces aren’t exactly “seen” so much as “sketched”— you know who they are because it’s your dream after all, not because you necessarily picture them in every detail. Do you…

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