Light Enables Long-Term Memory Maintenance in Fruit Flies

S. Inami et al., “Environmental light is required for maintenance of long-term memory in Drosophila,” J Neurosci, 40:1427–39, 2020. by Diana Kwon As Earth rotates around its axis, the organisms that inhabit its surface are exposed to daily cycles of darkness and light. In animals, light has a powerful influence on sleep, hormone release, andContinue reading “Light Enables Long-Term Memory Maintenance in Fruit Flies”

Genetic Risk for Alzheimer’s Disease Linked to Highly Active Brains

Young carriers of the APOE4 allele have brains that are more connected (left, red lines illustrate connections between brain areas) and active (right, yellow indicates activity) than the brains of those without the allele. KRISHNA SINGH, ELIFE, 8:E36011, 2019. A growing body of evidence supports the theory that neural hyperactivity and hyperconnectivity precede the pathologicalContinue reading “Genetic Risk for Alzheimer’s Disease Linked to Highly Active Brains”

When artificial intelligence was allowed to learn how to move through a virtual environment, it spontaneously generated patterns of activity found in grid neurons of the human brain.

By Diana Kwon A computer program can learn to navigate through space and spontaneously mimics the electrical activity of grid cells, neurons that help animals navigate their environments, according to a study published May 9 in Nature. “This paper came out of the blue, like a shot, and it’s very exciting,” Edvard Moser, a neuroscientistContinue reading “When artificial intelligence was allowed to learn how to move through a virtual environment, it spontaneously generated patterns of activity found in grid neurons of the human brain.”

Caloric Restriction Slows Signs of Aging in Humans

by Diana Kwon Findings from a randomized, controlled trial finds that reducing food intake decreases metabolism and reduces oxidative damage to tissues and cells. Studies in various animals, including rodents and monkeys, have reported that caloric restriction can extend their lifespans. Findings from a two-year, randomized, controlled trial with human participants, published last week (MarchContinue reading “Caloric Restriction Slows Signs of Aging in Humans”