Pupil size in sleep reveals how memories are sorted, preserved

Cornell University scientists discovered that fluctuating pupil size in mice assists the brain in organising recent and longstanding memories.
Saying goodbye to traumatic memories: astrocytic manipulation of the fate of memory

Researchers at Japan’s Tohoku University have discovered that manipulating brain astrocytes can determine whether memories are retained or forgotten.
Other body parts form memories, not just the brain

New York University study shows kidney and nerve tissue cells learn and make memories in ways similar to neurons