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The Brain Maps Out Ideas and Memories Like Spaces
Emerging evidence suggests that the brain encodes abstract knowledge in the same way that it represents positions in space, which hints at a more universal theory of cognition.
Stem Cells Remember Tissues’ Past Injuries
Stem cells seem to retain memories of old injuries to improve future healing. When that system goes wrong, chronic inflammation can result.
To Remember, the Brain Must Actively Forget
Researchers find evidence that neural systems actively remove memories, suggesting that forgetting may be the default mode of the brain.
Slime Molds Remember — but Do They Learn?
Evidence mounts that organisms without nervous systems can in some sense learn and solve problems, but researchers disagree about whether this is “primitive cognition.”
Overtaxed Working Memory Knocks the Brain Out of Sync
Researchers find that when working memory gets overburdened, dialogue between three brain regions breaks down. The discovery provides new support for a larger concept about how the brain works.
With Strategic Zaps to the Brain, Scientists Boost Memory
Stimulating part of the cortex as needed during learning tasks improves later recall. The finding reveals more about the brain’s memory network and points toward possible therapies.
Light-Triggered Genes Reveal the Hidden Workings of Memory
Nobel laureate Susumu Tonegawa’s lab is overturning old assumptions about how memories form, how recall works and whether lost memories might be restored from “silent engrams.”
The Maestro of Memory Manipulation
The neuroscientist Sheena Josselyn can evoke and erase memories in mice using new tools that precisely control the brain.
New Clues to How the Brain Maps Time
The same brain cells that track location in space appear to also count beats in time. The research suggests that our thoughts may take place on a mental space-time canvas.