Neuroscience

When a fix for one vision problem causes another

Aging diminishes the ability of the eyes to focus up close. New Penn research reports that monovision, a common prescription lens correction to mitigate this issue, can cause dramatic misperceptions of depth and 3D direction for objects in motion.

Michele W. Berger

Unraveling the brain’s reward circuits

Food, alcohol, and certain drugs all act to reduce the activity of hunger neurons and to release reward signals in the brain, but alcohol and drugs rely on a different pathway than does food.

Katherine Unger Baillie



In the News


Newsweek

Man does DNA test, not prepared for what comes back ‘unusually high’

César de la Fuente of the School of Engineering and Applied Science and Perelman School of Medicine says that Neanderthal DNA provides insights into human evolution, population dynamics, and genetic adaptations, including correlations with traits such as immunity and susceptibility to diseases.

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Associated Press

A new strategy to attack aggressive brain cancer shrank tumors in two early tests

A clinical trial led by Stephen Bagley of the Perelman School of Medicine suggests that targeting two associated proteins with CAR T cell therapy could be a viable strategy for shrinking brain tumors.

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Daily Mail (U.K.)

ADHD may have evolved more than 12,000 years ago as an advantage for foragers, study claims

A study led by David Barack of the Perelman School of Medicine suggests that ADHD may have played a major role in foraging and survival for ancient hunter-gatherers.

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The Wall Street Journal

How to stay mentally sharp into your 80s and beyond

According to David Wolk of the Perelman School of Medicine, a healthier body can help the brain respond better to the aging process.

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NPR

Blood tests can help diagnose Alzheimer’s—if they’re accurate enough. Not all are

Virginia Man-Yee Lee of the Perelman School of Medicine says it’s likely in the future that anyone older than 60 will get an Alzheimer’s test.

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The Economist

Some scientists think newborn neurons could reverse Alzheimer’s

Research co-authored by Hongjun Song of the Perelman School of Medicine strengthens the case for human neurogenesis, the development of new neurons from neural progenitor cells.

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