Mice’s facial expressions can reveal a wide range of emotions. A machine learning approach reveals subtle ear, nose and whisker movements

By Laura Sanders Although it’s tricky for us humans to see, mouse feelings are written all over their furry little faces. With machine learning tools, researchers reliably spotted mice’s expressions of joy, fear, pain and other basic emotions. The results, published in the April 3 Science, provide a field guide for scientists seeking to understandContinue reading “Mice’s facial expressions can reveal a wide range of emotions. A machine learning approach reveals subtle ear, nose and whisker movements”

Scientists reverse cognitive symptoms in a mouse model of Down Syndrome

By Kristin Houser Down syndrome is a cognitive disability that can affect a person’s memory or ability to learn — intellectual impairments researchers traditionally thought were untreatable and irreversible. But now, researchers from the University of California San Francisco and Baylor College of Medicine say they’ve reversed the impairments in mouse models of Down syndromeContinue reading “Scientists reverse cognitive symptoms in a mouse model of Down Syndrome”

A protein in skeletal muscles helps mice recover from sleep deprivation.

by SUKANYA CHARUCHANDRA The protein Bmal1, which helps regulate the body’s internal clock, is found in especially high levels in the brain and in skeletal muscles. Mice completely deficient in Bmal1 were known to suffer from sleep impairments, but the specifics at play weren’t clear. At the University of California, Los Angeles, Ketema Paul andContinue reading “A protein in skeletal muscles helps mice recover from sleep deprivation.”

Scientists achieve implantation of memory into the brains of mice while they sleep

Sleeping minds: prepare to be hacked. For the first time, conscious memories have been implanted into the minds of mice while they sleep. The same technique could one day be used to alter memories in people who have undergone traumatic events. When we sleep, our brain replays the day’s activities. The pattern of brain activityContinue reading “Scientists achieve implantation of memory into the brains of mice while they sleep”

Scientists learn that mice nest together to confuse paternity and reduce infanticide

It is a cruel world out there, particularly for young animals born into social groups where infanticide occurs. This dark side of evolution is revealed when adults – often males – kill offspring to promote their own genes being passed on, by reducing competition for resources or making females become sexually receptive more quickly. ThisContinue reading “Scientists learn that mice nest together to confuse paternity and reduce infanticide”