Image (IMAGE) SingHealth Caption A neural pathway known as the "tremor network" regulates movement and runs between the motor cortex (A), thalamus (B) and cerebellum (C). Messages need to flow smoothly along this network, before signals are sent to muscles in the hands, triggering them to take the action the person wants or to keep the hands still. Credit National Neuroscience Institute Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.