Prof. Ray Guillery, Honorary Emeritus Research Fellow in the Unit, published a biographical and science history article about his great granduncle Otto Friedrich Karl Deiters (1834-1863), on the occasion of the 150th anniversary of his death. Deiters first described that neurons have several dendrites and one axon, something not all students are aware today. He also understood that neurons are polarised and first demonstrated inputs to the dendrites.