There's an old saying: the things you don't know are very often the things you have chosen not to know. And, speaking from the physical standpoint of the human brain, this might not be far from the facts.
When we're awake, our brains receive an almost constant flux of information from sensory signals of constantly fluctuating intensities. For decades, scientists have wondered about the nature of the boundary between signals we detect consciously and the ones that fall below the horizon of conscious awareness, remaining in unconsciousness. And they may have just found that answer.
Scientists say they've discovered a crucial area in the brain's cortex that plays gatekeeper to our conscious awareness, according to a recent study published in the journal Cell Reports.
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