Neuroscience

Researchers discover how hormones define brain sex differences

Sex hormones play an important role in shaping an animal's behavior, and their influence starts early. Early-life hormonal surges help shape the developing brain, establishing circuitry that will influence behavior for a ...

Addiction

It may be increasingly legal but doesn't mean cannabis is safe

Arecent CBS News/YouGov survey found that two-thirds of Americans want recreational marijuana use to be legal. Nearly 70 percent of states allow the medical use of cannabis products and a growing number have legalized recreational ...

Neuroscience

Widespread brain receptor hides surprising mechanism of action

One of the most important molecules in the brain doesn't work quite the way scientists thought it did, according to new work by researchers at Columbia University Vagelos College of Physicians and Surgeons and Carnegie Mellon ...

Neuroscience

Dendrites may help neurons perform complicated calculations

Within the human brain, neurons perform complex calculations on information they receive. Researchers at MIT have now demonstrated how dendrites—branch-like extensions that protrude from neurons—help to perform those ...

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