Scientists Discover the Brain Is Not Always Ready To Make Memories

Researchers at the University of Tübingen found in mice that brief shifts in alertness can make hippocampal memory circuits more receptive to new information.

Place-cell activity and theta oscillations changed together, pointing to short windows of increased neural plasticity.

The study suggests memory formation is state-dependent, rather than happening uniformly over time.

In other words, whether an experience gets encoded may depend on the brain’s momentary level of alertness.