Neuroscience

Mouse decision-making more complex than once thought

Working with dot-counting mice running through a virtual-reality maze, scientists from Harvard Medical School have found that in order to navigate space rodent brains rely on a cascade of neural signals that culminate in ...

Cardiology

Sleep disorders may influence heart disease risk factors

Sleep problems including sleeping too little or too long, may be linked to a variety of factors that may raise the risk for cardiovascular diseases, according to a new American Heart Association scientific statement published ...

Cardiology

Sleep troubles, heart troubles?

(HealthDay)—Sleep disorders—including too little or too much sleep—may contribute to heart disease risk factors, the American Heart Association said in its first statement on the risks of sleep problems.

Health

Brain benefits of aerobic exercise lost to mercury exposure

Cognitive function improves with aerobic exercise, but not for people exposed to high levels of mercury before birth, according to research funded by the National Institute of Environmental Health Sciences (NIEHS), part of ...

Neuroscience

Looking into the brains of habitual short sleepers

Most people could benefit from a few extra hours of sleep every night. But some people habitually sleep much less than the recommended amount, yet report feeling no ill effects. A new University of Utah study, published Sept. ...

Neuroscience

Elders use brain networks differently for short-term recall

Older people's short-term memory is generally slower and less accurate compared to younger people. But a new University of California, Berkeley, study suggests that brains that continue to perform well in old age do so by ...

Neuroscience

The mechanisms of memory

Michy Kelly's fascination with how brains work began in high school when she noticed that she and her brother were polar opposites when it came to cognitive abilities.

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