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Brain Cell DNA Refolds Itself to Aid Memory Recall
Researchers see structural changes in genetic material that allow memories to strengthen when remembered.
In Brain Waves, Scientists See Neurons Juggle Possible Futures
Faced with a decision, the brain weighs its options by bundling them into rapidly alternating cycles of brain waves.
Dueling Brain Waves Anchor or Erase Learning During Sleep
While we sleep, one kind of slow brain wave helps to reinforce memories, but a competing wave weakens them.
In Brain’s Electrical Ripples, Markers for Memories Appear
Researchers found that elongating certain brain signals in rats improved their memory. The work revealed a new property to look out for in the hunt for “biomarkers” of learning.
Goals and Rewards Redraw the Brain’s Map of the World
Two new studies show that the brain’s navigation system changes how it represents physical space to reflect personal experience.
How the Brain Creates a Timeline of the Past
The brain can’t directly encode the passage of time, but recent work hints at a workaround for putting timestamps on memories of events.
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.