Disentangling the effects of spatial inconsistency of targets and distractors when searching in realistic scenes

Journal of Vision
Sara SpotornoBenjamin W Tatler

Abstract

Previous research has suggested that correctly placed objects facilitate eye guidance, but also that objects violating spatial associations within scenes may be prioritized for selection and subsequent inspection. We analyzed the respective eye guidance of spatial expectations and target template (precise picture or verbal label) in visual search, while taking into account any impact of object spatial inconsistency on extrafoveal or foveal processing. Moreover, we isolated search disruption due to misleading spatial expectations about the target from the influence of spatial inconsistency within the scene upon search behavior. Reliable spatial expectations and precise target template improved oculomotor efficiency across all search phases. Spatial inconsistency resulted in preferential saccadic selection when guidance by template was insufficient to ensure effective search from the outset and the misplaced object was bigger than the objects consistently placed in the same scene region. This prioritization emerged principally during early inspection of the region, but the inconsistent object also tended to be preferentially fixated overall across region viewing. These results suggest that objects are first selected covertly on t...Continue Reading

Citations

Jul 7, 2016·Attention, Perception & Psychophysics·George L MalcolmSarah Shomstein
Oct 26, 2016·Trends in Cognitive Sciences·George L MalcolmChris I Baker
Nov 2, 2016·Behavior Research Methods·Sabine Öhlschläger, Melissa Le-Hoa Võ
Oct 20, 2017·Frontiers in Psychology·Mingliang GongXiaolan Fu

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