Luigi Galvani was interested in how dissected creatures' muscles could be moved with an electric current passed through them, most famously a frog's hind leg.
Luigi Galvani's theory of a nervous electrical fluid is now disproven, but his work was considered true of the time and he was one of the most famous scientists in Europe.
While Mary Shelley is vague in how Victor brings the creature to life, electricity is involved and it is clear that Victor is meant to be aware of Galvani’s work and applied a similar stimulation.