
Astrocytes were initially considered ‘extras’ in the brain, supporting neurons, the principal actors. But more recent work has suggested that they are involved in cognitive functions such as information processing, signal transmission, and neural and synaptic plasticity. Now these star-shaped cells are moving farther into the spotlight, as new research shows them to be essential in the formation of long-term memory.
Lab Anim. (NY) 40, 98 (2011).