In 1938 Alexander Sand of the Marine Biological Association in Plymouth, England, succeeded in amplifying and recording nerve pulses running from ampullae of Lorenzini to the brain.

• 1938年，英国普利茅斯海洋生物协会的桑德（AlexanderSand）成功放大了从劳伦氏壶腹传到脑子的神经脉冲讯号。