Medications

The struggle to define psychedelics

Psychoactive drugs include all manner of hallucinogens, deliriants, hypnotics and psychedelics. But what is a psychedelic, really? Insofar as many in the field are now moving toward bringing new molecules with presumably ...

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

Scientists reveal structures of neurotransmitter transporter

Neurons talk to each other using chemical signals called neurotransmitters. Scientists at St. Jude Children's Research Hospital have drawn on structural biology expertise to determine structures of vesicular monoamine transporter ...

Neuroscience

Mechanism decoded: How synapses are formed

Whether in the brain or in the muscles, wherever there are nerve cells, there are synapses. These contact points between neurons form the basis for the transmission of excitation, the communication between neurons. As in ...

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