Do dreams reflect reality?

Computer analysis brings closer an understanding of what dreaming is about


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  • 09 3, 2020
  • in Science and technology

THAT DREAMS contain hidden meanings is an old idea. The Biblical Book of Genesis, written down about 2,500 years ago, describes how Joseph, son of Jacob, interpreted the Egyptian pharaoh’s dreams of fat and thin cattle as predicting years first of plenty and then of famine. In China, meanwhile, the most popular work on dream interpretation has long been the “Zhougong Jie Meng”, a dictionary of explanations for weird and wonderful dreams written 500 years earlier still. It is, however, only since the publication of Sigmund Freud’s treatise “The Interpretation of Dreams”, in 1899, that dreams have become a subject of serious scientific scrutiny.Things have moved on since Freud’s day. His emphasis on violent urges and sexual repression as the roots of dreaming now looks old-fashioned. Instead, the premise is that dreams reflect a dreamer’s quotidian experience—either because they are an epiphenomenon of the consolidation of memories or because they are a mental testing ground for ideas the dreamer may have to put into practice when awake. This resemblance between dreams and reality is dubbed the continuity hypothesis by psychologists. Data supporting it, however, are sparse. Such as exist come from clinical studies rather than examinations of people with healthy minds. And the numbers of participants involved tend to be small.

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