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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.
A Good Memory or a Bad One? One Brain Molecule Decides.
When the brain encodes memories as positive or negative, one molecule determines which way they will go.
Why and How Do We Dream?
Dreams are subjective, but there are ways to peer into the minds of people while they are dreaming. Steven Strogatz speaks with sleep researcher Antonio Zadra about how new experimental methods have changed our understanding of dreams.
The Computer Scientist Challenging AI to Learn Better
Christopher Kanan is building algorithms that can continuously learn over time — the way we do.
Scientists Watch a Memory Form in a Living Brain
While watching a fearful memory take shape in the brain of a living fish, neuroscientists see an unexpected level of rewiring occur in the synaptic connections.
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.
The Year in Biology
The detailed understanding of brains and multicellular bodies reached new heights this year, while the genomes of the COVID-19 virus and various organisms yielded more surprises.
How Animals Map 3D Spaces Surprises Brain Researchers
When animals move through 3D spaces, the neat system of grid cell activity they use for navigating on flat surfaces gets more disorderly. That has implications for some ideas about memory and other processes.