• Filter By:
• Specialty
• Source
• Condition
• Cancer
• Infectious Disease
• Drug
• Training
• Management
• Procedure
• Therapy
• Vaccine
• Nutrition
• Country

Spacing out after staying up late? Here ’s why
Ever sleep poorly and then walk out of the house without your keys? Or space out while driving to work and nearly hit a stalled car?A new study led by UCLA ’sDr. Itzhak Fried is the first to reveal how sleep deprivation disrupts brain cells ’ ability to communicate with each other. Fried and his colleagues believe that disruption leads to temporary mental lapses that affect memory and visual perception. Their findings are published online today by Nature Medicine.“We discovered that starving the body of sleep also robs neurons of the ability to function properly,” said Fried, the study’s senior author, a profess...
Source: UCLA Newsroom: Health Sciences - November 6, 2017 Category: Universities & Medical Training Source Type: news

Brain’s reaction to virtual reality should prompt further study, suggests new research by UCLA neuroscientists
UCLA neurophysicists have found that space-mapping neurons in the brain react differently to virtual reality than they do to real-world environments. Their findings could be significant for people who use virtual reality for gaming, military, commercial, scientific or other purposes. “The pattern of activity in a brain region involved in spatial learning in the virtual world is completely different than when it processes activity in the real world,” said Mayank Mehta, a UCLA professor of physics, neurology and neurobiology in the UCLA College and the study’s senior author. “Since so many people are using virtual r...
Source: UCLA Newsroom: Health Sciences - November 25, 2014 Category: Universities & Medical Training Source Type: news

UCLA–Tel Aviv study suggests REM sleep helps the brain capture snapshots of dream images
When we sleep, we experience our most vivid dreams and vigorous brain activity during the rapid eye movement, or REM phase. Although scientists have long suspected that our eyes flicker in response to what our unconscious mind sees in our dreams, no one has been able to prove it.  Now, an international team of researchers led by UCLA’s Dr. Itzhak Fried is the first to demonstrate that during dreams, our eyes and brains respond similarly to how they react to images when we’re awake. Published in the Aug. 11 online edition of Nature Communications, the findings offer a rare glimpse into the working of individual brain...
Source: UCLA Newsroom: Health Sciences - August 12, 2015 Category: Universities & Medical Training Source Type: news

UCLA neuroscientists use weak electrical signal to stimulate human brain and improve memory
FINDINGSNeuroscientists at the  David Geffen School of Medicine at UCLA have discovered precisely where and how to electrically stimulate the human brain to enhance people’s recollection of distinct memories. People with epilepsy who received low-current electrical pulses showed a significant improvement in their ability to recognize specific faces and ignore simila r ones.Eight of nine patients ’ ability to recognize the faces of specific people improved after receiving electrical pulses to the right side of the brain’s entorhinal area, which is critical to learning and memory. However, electrical stimulation deli...
Source: UCLA Newsroom: Health Sciences - October 24, 2017 Category: Universities & Medical Training Source Type: news