
Though they have been around since the late 1990’s, emoji use has escalated sharply with the proliferation of smartphones. A survey conducted by digital start-up Swyft Media revealed that over six billion emoticons or stickers are sent around the world every day. The digital icons have become so ubiquitous that in 2015, the Oxford Dictionary selected the “Face with Tears of Joy” as its “word” of the year. Given their widespread use and popularity, it is not surprising that the tiny images are starting to intrigue researchers as well.