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Hidden Tapeworms Inside People’s Brains

A human brain overrun with cysts from Taenia solium, a tapeworm that normally inhabits the muscles of pigs. Courtesy of Theodore E. Nash , M.D. Theodore Nash sees only a few dozen patients a year in his clinic at the National Institutes of Health in Bethesda, Maryland. That’s pretty small …

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Who do not dream?

Everyone dreams – even people who believe that they “never dream” and can’t remember any of their dreams. That’s according to a group of French researchers writing in the Journal of Sleep Research: Evidence that non-dreamers do dream. In questionnaire surveys, up to 6.5% of people report that they ‘never …

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What is behind the Human Voice

1. For decades, scientists thought a key element of generating voice was the Bernoulli effect, the same change in relative air pressure that allows airplanes to fly and curveballs to befuddle batters. 2. We now know, however, that voice generation is far more complex. Muscles in the vocal folds provide …

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Our Brain’s Negative Bias

Our Brain’s Negative Bias  Why our brains are more highly attuned to negative news.  Why do insults once hurled at us stick inside our skull, sometimes for decades? Why do some people have to work extra hard to ward off depression? The answer is, for the same reason political smear …

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Decreased activity of basal ganglia, cause of abnormal muscle constrictions in dystonia

Decreased activity of basal ganglia is the main cause of abnormal muscle constrictions in dystonia Dystonia is a neurological disorder characterized by involuntary abnormal muscle constrictions. More than 300,000 people in North America are affected, but the mechanism of abnormal muscle constrictions has not been well understood. Here, Japanese research team …

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Unconscious learning uses old parts of the brain

Unconscious learning uses old parts of the brain A new study from the Swedish medical university Karolinska Institutet provides evidence that basic human learning systems use areas of the brain that also exist in the most primitive vertebrates, such as certain fish, reptiles and amphibians. The study involved an investigation into …

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Decision-making

Decision-making  Demonstration of a link between cognition and executionFebruary 8, 2007 For the first time, a team of researchers in the Movement, Adaptation, Cognition Laboratory (CNRS/University Victor Ségalen, Bordeaux) has revealed the existence of an interaction at the cellular level between cognitive information and motor information. This discovery provides the …

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What does happen after consuming a big cup of coffee ?

The caffeine from your morning coffee changes your brain’s chemistry.Caffeine works by changing the chemistry of the brain. It blocks the action of a natural brain chemical that is associated with sleep. Here is how it works. If you read the HowStuffWorks article How Sleep Works, you learned that the …

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Is music language of emotion?

Music is a common phenomenon that crosses all borders of nationality, race, and culture. A tool for arousing emotions and feelings, music is far more powerful than language. An increased interest in how the brain processes musical emotion can be attributed to the way in which it is described as …

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