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We experience the world as stable and continuous, despite the fact that visual input is overwritten on the retina with each new ocular fixation. Spatial remapping is the process that integrates selected visual information into successive (continuous) representations of our spatial environment, thereby allowing us to keep track of objects, and experience the world as stable, despite frequent eye (re-)fixations. The present paper investigates spatial remapping in the context of visual pop-out search. Within standard instances of the pop-out paradigm, reactions to stimuli at previously attended locations are facilitated (faster and more accurate), and reactions to stimuli at previously ignored locations are inhibited (slower and less accurate). The mechanisms that support facilitation at previously attended locations, and inhibition at previously ignored locations, serve to enhance the efficiency of visual search. It is thus natural to expect that information about which locations were previously attended to or ignored is stored and remapped as a concomitant to successive representations of the spatial environment. Using variants of the pop-out paradigm, we corroborate this expectation, and show that information concerning the prior status of locations, as attended to or ignored, is remapped following attention shifts, with some degradation of information concerning ignored locations.
This article was published in the following journal.
Name: Acta psychologica
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Integration of spatial information perceived by visual and/or auditory CUES.
A process through which individuals encode information about their environmental CUES to facilitate SPATIAL NAVIGATION.
Methods used to take into account and incorporate spatial autocorrelation and regional variation into regression analysis models of data that has spatial dependency, and also to provide information on the spatial relationships among the variables.
Process by which organisms use various cues to develop a route to a destination and their ability to travel such a planned route.
The mechanism by which a neuronal process outgrows toward a target led by the GROWTH CONE. Local guidance cues are provided by cell surface proteins that act on the growing axon.