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Eric Castet, Sébastien Jeanjean, Anna Montagnini, Danièle Laugier, Guillaume S. Masson; Dynamics of attentional deployment during saccadic programming. Journal of Vision 2006;6(3):2. doi: 10.1167/6.3.2.
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© 2016 Association for Research in Vision and Ophthalmology.
The dynamics of attentional deployment before saccade execution was studied with a dual-task paradigm. Observers made a horizontal saccade whose direction was indicated by a symbolic precue and had to discriminate the orientation of a Gabor patch displayed at different delays after the precue (but before saccade onset). The patch location relative to the saccadic target was indicated to observers before each block. Therefore, on each trial, observers were informed simultaneously about the respective absolute locations of the saccadic and perceptual targets. The main result is that orientational acuity improved over a period of 150–200 ms after the precue onset at the saccadic target location, where overall performance is best, and at distant locations. This effect is due to attentional factors rather than to an alerting effect. It is also dependent on the efficiency of the temporal masks displayed before and after the Gabor patches.
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