In the flash-lag illusion, a flash and a moving object in the same Location
appear to be offset. A series of psychophysical experiments yields data in
consistent with two previously proposed explanations: motion extrapolation
(a predictive model) and latency difference (an online model). We propose a
n alternative in which visual awareness is neither predictive nor online bu
t is postdictive, so that the percept attributed to the time of the flash i
s a function of events that happen in the similar to 80 milliseconds after
the flash. The results here show how interpolation of the past is the only
framework of the three models that provides a unified explanation for the f
lash-lag phenomenon.