Difference Between Sleep and Dream
There is a difference between being just asleep and in a state of mind called dreaming. Sleeping can be described as the lack of conscious awareness of the outside world, meaning large portions of the brain that receive and interpret signals are deactivated during this time, while dreaming is a specific state of sleep in which enhanced brain activity has been shown to occur, theorizing the primary consciousness could be active during dreaming. Indeed, during dreams we are consciously aware of our surroundings, and assuredly have a certain perception and emotion throughout the course of the dream, suggesting that at least part of the primary consciousness is activated during the dream.
Read more about this topic: Activation-synthesis Hypothesis
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