Medical research

Even in fruit flies, enriched learning drives need for sleep

Just like human teenagers, fruit flies that spend a day buzzing around the "fly mall" with their companions need more sleep. That's because the environment makes their brain circuits grow dense new synapses and they need ...

Neuroscience

How neurons that wire together fire together

For amplifying sensory stimuli quickly and accurately, neuronal circuits require specific wiring. Some 70 years ago, the compelling idea that "neurons that fire together wire together" emerged. Yet, in computational models, ...

Neuroscience

How attention helps the brain perceive an object

It's easy to miss something you're not looking for. In a famous example, people were asked to closely observe two groups of people—one group clad in black, the other in white—pass a ball among themselves. Viewers were ...

Neuroscience

Neural pathway key to sensation of pleasant touch identified

Studying mice, scientists at Washington University School of Medicine in St. Louis have identified a neural circuit and a neuropeptide—a chemical messenger that carries signals between nerve cells—that transmit the sensation ...

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