The brain’s helper cells have a hand in learning fear

Astrocytes in the hippocampus may send signals that promote memories of trauma

astrocyte

NEW ROLE  A kind of brain cell called an astrocyte (shown) may help nerve cells in the hippocampus form traumatic memories, a study in rats suggests.

GerryShaw/Wikimedia Commons (CC BY-SA 3.0)

WASHINGTON, D.C.