News tagged with biological activity

What causes seizure in focal epilepsy?

In focal epilepsy, seizures are generated by a localized, synchronous neuronal electrical discharge that may spread to large portions of the brain. In spite of intense research in the field of epilepsy, a key question remains ...

dateApr 13, 2010 in Medical research
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Free will is an illusion, biologist says

(PhysOrg.com) -- When biologist Anthony Cashmore claims that the concept of free will is an illusion, he's not breaking any new ground. At least as far back as the ancient Greeks, people have wondered how humans seem to have ...

dateMar 03, 2010 in Other feature
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Detecting Our Martian Cousins

The iguanas of the Galapagos Islands have evolved many unique characteristics due to their isolation from mainland iguanas. Because they can't swim long distances, biologists believe that the first Galapagos iguanas arrived ...

dateFeb 15, 2010 in Space Exploration
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Uncorrelated activity in the brain

Interconnected networks of neurons process information and give rise to perception by communicating with one another via small electrical impulses known as action potentials. In the past, scientists believed that adjacent ...

dateJan 28, 2010 in Neuroscience
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