Neuroscientists have artificially increased neuronal activity in part of the brain by briefly shining light on genetically modified neurons. They saw that this manipulation selectively enhanced ...

Neuroscientists have explored how individual neurons in mice are influenced by two different cognitive and behavioral states -- attention and running. These two states were once thought to share a ...

The locus coeruleus (LC) is a small region of the brainstem that produces norepinephrine, a chemical with powerful effects on arousal and wakefulness which plays an important role in the body’s ...