Essentials: How to Focus to Change Your Brain

1032.928 - 1055.688 Andrew Huberman

All it means is that one particular shout in the crowd comes through. Acetylcholine acts as a spotlight. But epinephrine for alertness, acetylcholine spotlighting these inputs, those two things alone are not enough to get plasticity. There needs to be this third component. And the third component is acetylcholine released from an area of the forebrain called nucleus basalis.