With the discovery of electrical synapses, which are direct junctions between nerve cells, Cajal and Italian physician Camillo Golgi shared the Nobel Prize in Physiology or Medicine in 1906.

• 他对神经细胞间的直接交叉点电突触的研究使他在1906年与意大利医学家高尔基一同获得诺贝尔医学奖。