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Showing posts from January, 2019

Why Lucid Dreams Matter

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Lucid dreams are often defined as the ones you know you are having in real time. These are the dreams where you seem to be conscious. You are aware of the story line, and you are often a central character in the story. Sometimes, you may even consciously manipulate the dream content toward a more acceptable outcome. Scientists have recorded physiological changes during sleep, and there are multiple episodes during sleep, especially early in the morning, that display brain waves similar to those when you are awake accompanied by rapid, jerky eye moves (REM). When people were awakened every time these signs appeared, they invariably said a dream was interrupted. Source, with permission: Carroll Jones III, Nathaniel Graphics, 2013 Incidentally, I have studied this in animals. It appears that REM sleep is an innate property of the brains of mammals. I discovered REM sleep in ruminants, which at the time were assumed to rest without true sleep. I also discovered a rudimentary form of REM sl...

Consciousness as Afterthought

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I get a lot of questions in Quora about neuroscience, because neuroscience is what I do. A recent question prompts this post. The question was: " Does all thinking originate in subconscious thinking?" This is a provocative question. It gets to the heart of the matter: What is the default mode of brain operation, conscious or subconscious? Semantic Confusion Much of the confusion about consciousness arises because words fail us. We have poor definitions for the usual words: conscious, unconscious, subconscious, non-conscious. Before I attempt an answer to my Quora question, let me establish some background about terminology. First, the currency of thought is patterns of nerve impulse activity constrained by flowing in and through defined circuits of linked neurons. The impulse thought patterns that occur in primitive circuitry, like spinal   segments and neuroendocrine circuits are considered nonconscious thoughts because we can never be consciously aware of what those circuit...