An optical illusion in which an image, when overlaid with a certain semi-transparent template, will appear to move when the whole image is shaken.
The illusion became a Twitter meme in September 2019. Images with this template are intended to be viewed on a smartphone and shaken to cause part of the image to bounce or jiggle.
- Know Your Meme: 'Shake Your Screen' Optical Illusion
- Amercian Psychological Association Dictionary of Psychology: Fluttering hearts
- Kitaoka Akiyoshi (Ritsumeikan University): A demonstration of the fluttering heart illusion
- Twitter: Image template
- Togetter: Twitter log archives