منابع مشابه
Gaze Contingent Displays: Analysis of Saccadic Plasticity in Visual Search
Gaze contingent displays were used to simulate visual field loss during performance of visual search tasks. Comparison of human saccadic strategies with those of a Bayesian ideal searcher show that humans rapidly adapt their saccadic strategies, but that this learning is limited and depends on the spatial pattern of vision loss.
متن کاملModeling Saccadic Targeting in Visual Search
Visual cognition depends critically on the ability to make rapid eye movements known as saccades that orient the fovea over targets of interest in a visual scene. Saccades are known to be ballistic: the pattern of muscle activation for foveating a prespecified target location is computed prior to the movement and visual feedback is precluded. Despite these distinctive properties, there has been...
متن کاملSaccadic selectivity in complex visual search displays
Visual search is a fundamental and routine task of everyday life. Studying visual search promises to shed light on the basic attentional mechanisms that facilitate visual processing. To investigate visual attention during search processes, numerous studies measured the selectivity of observers' saccadic eye movements for local display features. These experiments almost entirely relied on simple...
متن کاملRunning head: SACCADIC SELECTIVITY DURING VISUAL SEARCH
The current study examined the relation between the difficulty of central discrimination and the efficiency of peripheral selection in visual search tasks. Participants were asked to search for a target among high-, medium-, and low-similarity distractors. In Experiment 1, while the duration of current fixations increased with increasing target-distractor similarity, there was no evidence that ...
متن کاملReinforcing saccadic amplitude variability in a visual search task.
Human observers often adopt rigid scanning strategies in visual search tasks, even though this may lead to suboptimal performance. Here we ask whether specific levels of saccadic amplitude variability may be induced in a visual search task using reinforcement learning. We designed a new gaze-contingent visual foraging task in which finding a target among distractors was made contingent upon spe...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2010
ISSN: 1534-7362
DOI: 10.1167/9.8.403