Identifying Alzheimer’s well before symptoms appear may become easier with a saliva test

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In this installment of NPR’s series Inside Alzheimer’s, we hear from Greg O’Brien about his decision to sell the home where he and his wife raised their three children. O’Brien, a longtime journalist in Cape Cod, Mass., was diagnosed with early onset Alzheimer’s disease in 2009

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In a pair of studies published on Thursday in the journal Scientific Reports, the researchers report that rats and monkeys can coordinate their brains to carry out such tasks as moving a simulated arm or recognizing simple patterns. In many of the trials, the networked animals performed better than individuals

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Descartes thought that the brain was a kind of hydraulic pump, propelling the spirits of the nervous system through the body. Freud compared the brain to a steam engine. Karl Pribram likened it to a holographic storage device. Many neuroscientists today would add to this list of failed comparisons the idea that the brain is a computer — just another analogy without a lot of substance

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A surprising new paper argues that consciousness is just a bit player in the human brain

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Jaime Lowe: My 20-year struggle with bipolar disorder

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The rich array of microbiota in our intestines can tell us more than you might think

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Dr. Sergio Canavero announced his plan to transplant a human head as early as 2017

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