Tag Archives: neurobiology

UCLA to develop ‘brain prosthesis’ to help brain-injured patients recover memory

As part of a major federal initiative, UCLA has been awarded $15M to create a wireless, implantable device that could restore memory to millions

UCLA has been tapped by the Defense Advanced Research Projects Agency to spearhead an innovative project aimed at developing a wireless, implantable brain device that could help restore lost memory function in individuals who have suffered debilitating brain injuries and other disorders. (more…)

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Yale researchers reconstruct facial images locked in a viewer’s mind

Using only data from an fMRI scan, researchers led by a Yale University undergraduate have accurately reconstructed images of human faces as viewed by other people.

“It is a form of mind reading,” said Marvin Chun, professor of psychology, cognitive science and neurobiology and an author of the paper in the journal Neuroimage. (more…)

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Discovery spotlights key role of mystery RNA modification in cells

Researchers had known for several decades that a certain chemical modification exists on messenger ribonucleic acid (mRNA), which is essential to the flow of genetic information. But only recently did experiments at the University of Chicago show that one major function of this modification governs the longevity and decay of RNA, a process critical to the development of healthy cells.

The chemical modification on mRNA in question is called N6-methyladenosine (m6A). A recent study by UChicago scientists reveals how the m6A modification on mRNA could affect the half-life of mRNA that in turn regulates cellular protein quantities. That discovery could provide fundamental insights into healthy functioning and disorders such as obesity, diabetes and infertility. (more…)

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Giving refuge, advancing research

Yale Stress Center head promotes healing of the body, mind, and brain

Rajita Sinha, Ph.D., says that the emotional expressiveness of the Indian classical dance studies of her youth laid the foundation for a lifelong interest in the brain-body tango that regulates mood and behavior. As an undergraduate in her native Delhi, she studied biopsychology, conducting research on the effects of marijuana and working at a counseling center. For her graduate work at the University of Oklahoma Health Sciences Center, she studied how emotion is manifested physiologically, a thread that she has carried through her subsequent work on the brain-altering effects of drugs and alcohol.

Throughout, Sinha has observed and studied how people cope with stress and with wanting—“The abundance of choices available in the world, and easy access to commodities, including drugs, challenges the body’s motivational systems in novel ways,” she says. (more…)

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Moths Wired Two Ways to Take Advantage of Floral Potluck

Moths are able to enjoy a pollinator’s buffet of flowers – in spite of being among the insect world’s picky eaters – because of two distinct “channels” in their brains, scientists at the University of Washington and University of Arizona have discovered.

One olfactory channel governs innate preferences of the palm-sized hawk moths that were studied – insects capable of traveling miles in a single night in search of favored blossoms. The other allows them to learn about alternate sources of nectar when their first choices are not available.

For moths, the ability to seek and remember alternate sources of food helps them survive harsh, food-deprived conditions. Scientists knew bees could learn, but this is the first proof that moths can too. (more…)

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Tiny Variation in One Gene May Have Led to Crucial Changes in Human Brain

The human brain has yet to explain the origin of one its defining features – the deep fissures and convolutions that increase its surface area and allow for rational and abstract thoughts.

An international collaboration of scientists from the Yale School of Medicine and Turkey may have discovered humanity’s beneficiary – a tiny variation within a single gene that determines the formation of brain convolutions – they report online May 15 in the journal Nature Genetics. (more…)

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