Cue-target contingencies modulate voluntary orienting of spatial attention: dissociable effects for speed and accuracy.

作者: Mario Bonato , Matteo Lisi , Sara Pegoraro , Gilles Pourtois

DOI: 10.1007/S00426-016-0818-6

关键词:

摘要: Voluntary orienting of spatial attention is typically investigated by visually presented directional cues, which are called predictive when they indicate where the target more likely to appear. In this study, we nature potential link between cue predictivity (the proportion valid trials) and strength resulting covert attention. Participants judged orientation a unilateral Gabor grating preceded centrally presented, non-directional, color cue, arbitrarily prompting leftwards or rightwards shift Unknown them, was manipulated across blocks, whereby only for either first second half experiment. Our results show that cueing effects were strongly influenced change in predictivity. This influence differently emerged response speed accuracy. The difference invalid trials significantly larger cues predictive, amplitude effect modulated at single trial level recent history. Complementary these findings, accuracy revealed robust block history also different time-course compared with speed, as if it mainly mirrored voluntary processes. These obtained new manipulation using arbitrary non-directional cueing, demonstrate cue-target contingencies modulate way deployed space.

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