Text this: Novel visual perceptual phenomenon in isoluminant bi-coloured square-wave gratings

 _    _     ______    ______    ______   ______   
| |  | ||  /_   _//  /_   _//  /_   _// |      \\ 
| |/\| ||   -| ||-     | ||     -| ||-  |  --  // 
|  /\  ||   _| ||_    _| ||     _| ||_  |  --  \\ 
|_// \_||  /_____//  /__//     /_____// |______// 
`-`   `-`  `-----`   `--`      `-----`  `------`