Neuroscience

Chronic imaging of brain activity in conscious monkeys

Observation of brain activity in the awake state is of great interest to scientists, particularly those studying progressive neurological disorders. Marmosets, small primates inhabiting South America, are very useful animal ...

Neuroscience

Waking up the visual system

The ways that neurons in the brain respond to a given stimulus depends on whether an organism is asleep, drowsy, awake, paying careful attention or ignoring the stimulus. However, while the properties of neural circuits in ...

Sleep apnea

Want to boost your memory and mood? Take a nap, but keep it short

We're told to have power naps to keep us safe on the road and improve our alertness if we've had insufficient sleep. They even help our surgeons stay awake during long shifts. But siestas and nana naps can also leave us feeling ...