Studying the cerebellum in health and disease. The Watt Lab is located in the Bellini Life Sciences Building, and is part of the Biology Department at McGill University in beautiful Montréal, Canada. Sagittal view of the cerebellum with all the Purkinje cells shown in blue.Cerebellar roses. Purkinje cells (pink) in a garden of granule cells (green). Chloe and Amy at the rig.Purkinje cells (green). Purkinje cells (green) and granule cells (purple).