Neuroscience

Testing the fluorescent proteins that light up the brain

Neurons are cells in your brain. Shaped like little stars, they flicker and fire off signals to each other. The signals travel up and down the long tendrils, called dendrites, extending out from each point of a neuron's star-shaped ...

Neuroscience

New mechanism affecting nerve impulses discovered

Researchers at Linköping University, Sweden, have discovered a new mechanism by which substances can open a certain type of ion channel and thereby regulate nerve impulses. The study, published in the scientific journal ...

Medications

Inhibiting epileptic activity in the brain

Epileptic seizures often originate in small, localized areas of the brain where neurons abnormally fire in unison. These electrical impulses disrupt proper brain functioning and cause seizures. But what makes regions where ...

Attention deficit disorders

Q&A: Diagnosing ADHD

DEAR MAYO CLINIC: I am mom to two energetic boys, ages 5 and 8. A neighbor commented that my children must have ADHD. What is ADHD exactly and how do I tell the difference between a kid who just has a ton of energy and one ...

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