A digital lollipop is an electronic device that synthesizes virtual tastes by stimulating the human tongue with electric currents.
Digital lollipops were developed through research led by Nimesha Ranasinghe at the National University of Singapore.
[1][2][3] According to Ranasinghe, "The system can manipulate the properties of electric currents [...] to formulate different stimuli.
"[4] Additionally, his portfolio in 2013 mentioned that his team is "conducting experiments to analyze regional differences of the human tongue for electrical stimulation.
[4] Eventually, the digital lollipop could aid Alzheimer's patients by helping them "either enhance or suppress certain senses".