Long-term potentiation is a neuroplasticity process where highly electrically active neurons become more likely to communicate, explaining how learned behaviors become reflexive.

“it says that if a set of neurons is very electrically active it's likely that those neurons will communicate with themselves more easily because of changes in things like NMDA receptor activity, the recruitment of additional receptors, et cetera. It's essentially a cellular and molecular explanation for how something goes from unlearned, to learned, to reflexive.”