Purchase this article with an account.
Louisa Lavergne, Dorine Vergilino-Perez, Markus Lappe, Karine Doré-Mazars; The spatial pattern of peri-saccadic compression for small saccades. Journal of Vision 2010;10(14):17. doi: 10.1167/10.14.17.
Download citation file:
© ARVO (1962-2015); The Authors (2016-present)
In the temporal vicinity of a saccade onset, visual stability is transiently disrupted and briefly flashed visual stimuli undergo a systematic perceptual mislocalization. Specifically, when a stimulus is flashed around saccade onset, localization judgments are grossly biased toward the saccade endpoint. This peri-saccadic compression increases with saccade amplitude. Previous studies of peri-saccadic compression have typically used rather large saccade amplitudes. In the present study, we investigate systematically the pattern of errors for small saccade sizes (2°–10°), taking into account both the amplitude of the saccade and the position of the flashed stimulus (11 positions tested from 1 to 12°). Our results show a weaker compression effect for the smallest saccades. Moreover, we found that the strength of the compression depends on both stimulus side and relative distance to the saccade target.
This PDF is available to Subscribers Only