Neuroscience

Neuroscience

Evidence conflicts on iron’s role in Parkinson’s disease

Experiments yield conflicting results about whether vulnerable nerve cells have too much or too little iron.

Animals

Dragons sleep like mammals and birds

Some lizards may sleep in the same way as mammals and birds, a new brain wave study finds.

Neuroscience

Ions may be in charge of when you sleep and wake

The recipe for sleep and wake may depend on ions.

Neuroscience

Words’ meanings mapped in the brain

Language isn’t just confined to one region of the brain: The meaning of words spark activity all over the cerebral cortex.

Science & Society

Findings on wobbly memories questioned

In contrast to older studies, new results suggest that new memories don’t interfere with older, similar ones.

Life

Uncertainty is stressful, but that’s not always a bad thing

Life is full of stressful, ambiguous situations. But a new study shows that the ones we can predict stress us out less, and may even help us learn.

Neuroscience

Left brain stands guard while sleeping away from home

Part of the left hemisphere stands sentry while the rest of the brain and body snooze.

Neuroscience

Spinal cord work-around reanimates paralyzed hand

A neural prosthesis can bypass a severed spinal cord, allowing a paralyzed hand to once again move.

Neuroscience

Lip-readers ‘hear’ silent words

Lipreading prompts activity in the brain’s listening area.

Neuroscience

Hippocampus makes maps of social space, too

The hippocampus is a multitalented mapmaker.

Neuroscience

Forgetting can be hard work for your brain

It can take more work to forget something than to remember it.

Neuroscience

Nerve cell links severed in early stages of Alzheimer’s

Nerve cell connections may be trimmed too much in early stages of Alzheimer’s.