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How Loneliness Reshapes the Brain
Feelings of loneliness prompt changes in the brain that further isolate people from social contact.
The Year in Biology
Momentum for new ideas in Alzheimer’s research joined advances in neuroscience, developmental biology and origin-of-life studies to make 2022 a memorable year of biological insights.
How the Brain Distinguishes Memories From Perceptions
The neural representations of a perceived image and the memory of it are almost the same. New work shows how and why they are different.
Machine Learning Highlights a Hidden Order in Scents
Efforts to build a better digital “nose” suggest that our perception of scents reflects both the structure of aromatic molecules and the metabolic processes that make them.
Self-Taught AI Shows Similarities to How the Brain Works
Self-supervised learning allows a neural network to figure out for itself what matters. The process might be what makes our own brains so successful.
By Exploring Virtual Worlds, AI Learns in New Ways
Intelligent beings learn by interacting with the world. Artificial intelligence researchers have adopted a similar strategy to teach their virtual agents new tricks.
The Brain Has a ‘Low-Power Mode’ That Blunts Our Senses
Neuroscientists uncovered an energy-saving mode in vision-system neurons that works at the cost of being able to see fine-grained details.
New Map of Meaning in the Brain Changes Ideas About Memory
Researchers have mapped hundreds of semantic categories to the tiny bits of the cortex that represent them in our thoughts and perceptions. What they discovered might change our view of memory.
Neural Noise Shows the Uncertainty of Our Memories
The electrical chatter of our working memories reflects our uncertainty about their contents.