The 4th Gordon Research Conference on the Cerebellum will bring together leading scientists and their trainees who are on the forefront of research on the cerebellum. The cerebellum is a brain structure that is critical for learning and controlling movement, and has more recently been implicated in sensory and cognitive functions. The conference will highlight new advances in understanding cerebellar function at the genetic, cellular, circuit and behavioral level and its role in disease states ranging from ataxia to autism. We plan to highlight the newest findings in the field, such as the recently discovered long-range cerebellar connections to other parts of the brain as well as the role of the cerebellum in psychiatric diseases. The major goal of this meeting is to bring together a diverse set of international speakers and trainees in order to enable the exchange of information that would not be possible otherwise. This interaction is essential for developing new ideas and technical methods for understanding the fundamental operation of the cerebellum and novel treatments for human disease.