flash-lag effect
English
![](Images/wiktionary/Flash_lag.gif)
When a visual stimulus moves along a continuous trajectory, it may be seen ahead of its veridical position with respect to an unpredictable event such as a punctuate flash.
Noun
flash-lag effect (plural flash-lag effects)
- A visual illusion wherein a flash and a moving object that appear in the same location are perceived to be displaced from one another.
- Synonym: flash-lag illusion