Print Email Facebook Twitter Where and When to Look: Sequential Effects at the Millisecond Level Title Where and When to Look: Sequential Effects at the Millisecond Level Author Marques-Carneiro, J.E. Polgari, P. Koning, E. Seyller, E. Martin, B. van der Burg, E. Giersch, A. Publication year 2020 Abstract Learning and imitating a complex motor action requires to visually follow complex movements, but conscious perception seems too slow for such tasks. Recent findings suggest that visual perception has a higher temporal resolution at an unconscious than at a conscious level. Here we investigate whether high-temporal resolution in visual perception relies on prediction mechanisms and attention shifts based on recently experienced sequences of visual information. To that aim we explore sequential effects during four different simultaneity/asynchrony discrimination tasks. Two stimuli are displayed on each trial with varying stimulus onset asynchronies (SOA). Subjects decide whether the stimuli are simultaneous or asynchronous and give manual responses. The main finding is an advantage for different-order over same-order trials, when subjects decided that stimuli had been simultaneous on Trial t - 1 , and when Trial t is with an SOA slightly larger than Trial t - 1, or equivalent. The advantage for different-order trials disappears when the stimuli change eccentricity but not direction between trials (Experiment 2), and persists with stimuli displayed in the centre and unlikely to elicit a sense of direction (Experiment 4). It is still observed when asynchronies on Trial t - 1 are small and undetected (Experiment 3). The findings can be explained by an attention shift that is precisely planned in time and space and that incidentally allows subjects to detect an isolated stimulus on the screen, thus helping them to detect an asynchrony. Subject Attention shiftPredictionSequential effectsTemporal processingTemporal sequencesVisual perception. To reference this document use: http://resolver.tudelft.nl/uuid:ea21bc93-3810-4886-8e9b-548164f0c332 DOI https://doi.org/10.3758/s13414-020-01995-3 TNO identifier 876326 Source Attention, Perception and Psychophysics, 82 (6), 2821-2896 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.