The Crystallization of Memory: Study reveals how Practice forms New Memory Pathways in the Brain

Brain made from wooden puzzles.
Credit: Getty Images/iStockphoto

A new study led by UCLA Health has shown that repetitive practice not only is helpful in improving skills but also leads to profound changes in the brain’s memory pathways.

The research, published in the journal Nature and co-led by Rockefeller University, sought to unravel how the brain’s ability to retain and process information, known as working memory, improves through training.

To test this, researchers tasked mice with identifying and recalling a sequence of odors over the course of two weeks. Researchers then tracked neural activity in the animals as they practiced the task by using a novel, custom-built microscope to image cellular activity in up to 73,000 neurons simultaneously throughout the cortex.

The study revealed a transformation...

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Physicists Demonstrate First Metro-Area Quantum Computer Network in Boston

A simple internet with significant possibilities
Map showing path of two-node quantum network through Cambridge and Boston, Massachusetts. Credit: Can Knaut via OpenStreetMap

It’s one thing to dream up a quantum internet that could send hacker-proof information around the world via photons superimposed in different quantum states. It’s quite another to physically show it’s possible.

That’s exactly what Harvard physicists have done, using existing Boston-area telecommunication fiber, in a demonstration of the world’s longest fiber distance between two quantum memory nodes to date. Think of it as a simple, closed internet between point A and B, carrying a signal encoded not by classical bits like the existing internet, but by perfectly secure, individual particles of light.

The groundbreaking work, titled “Entanglement of nanopho...

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NASA’s Juno provides High-Definition views of Europa’s Icy Shell

This annotated image of Europa’s surface from Juno’s SRU shows the location of a double ridge running east-west (blue box) with possible plume stains and the chaos feature the team calls “the Platypus” (orange box). These features hint at current surface activity and the presence of subsurface liquid water on the icy Jovian moon.

Images from the JunoCam visible-light camera aboard NASA’s Juno spacecraft supports the theory that the icy crust at the north and south poles of Jupiter’s moon Europa is not where it used to be. Another high-resolution picture of the icy moon, by the spacecraft’s Stellar Reference Unit (SRU), reveals signs of possible plume activity and an area of ice shell disruption where brine may have recently bubbled to the surface.

The JunoCam results recentl...

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Prostate Cancer Study: More Health Benefits from Plant-based Diet

A man fixes broccoli onto a green plate.

Men with prostate cancer could significantly reduce the chances of the disease worsening by eating more fruits, vegetables, nuts, and olive oil, according to new research by UC San Francisco.

A study of more than 2,000 men with localized prostate cancer found that eating a primarily plant-based diet was associated with a 47% lower risk that their cancer would progress, compared with those who consumed the most animal products.

This amounted to eating just one or two more servings per day of healthy foods, particularly vegetables, fruits, and whole grains, while eating fewer animal products, like dairy and meat. The study followed the men, whose median age was 65 years old, over time to see how dietary factors affected the progression of their cancer.

Plant-based diets include...

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