Scientists are working to understand how neurons in the cerebellum, a region in the back of the brain that controls movement, interact with each other. The team showed that a form of short-term neuronal plasticity known as analog-to-digital facilitation can impact neurotransmission in as little as 100 milliseconds and depends upon inactivation of Kv3 channels. Understanding this type of neuronal plasticity may have important implications for understanding motor disorders.