How does dopamine control both movement and learning? New research reveals that acetylcholine acts as a "switch" for dopamine function.

A growing body of mouse and rat research is rewriting the textbook on how dopamine, the brain’s primary reward signal, actually works. The emerging picture centers on acetylcholine, a second chemical ...

In A Nutshell A timing gap of just 50 to 100 milliseconds determines whether a dopamine signal in the brain drives learning or physical movement. A chemical called acetylcholine acts as a gatekeeper: ...

What goes on in a man’s head during sex? According to a new study from Japan, it all comes down to the precise timing of two brain chemicals: dopamine and acetylcholine. Their findings in male mice ...