| Tate has acquired this smaller installation, two curved rooms where changing coloured lights exploit the effect of retinal after-images. |
| The film pieces together unrelated images and discordant sounds to evoke provocative after-images that flow seamlessly into one another. |
| In low light, they create after-images, just like stained glass. |
| Move the eye to the left of the canvas after focusing on the stripes and after-images appear. |
| They could also be after-images, hypnagogic imagery, or memory images with subliminal material that was not veridical. |
| But after-images can be caused by staring intently at any pattern of high contrast. |
