Journal
PSYCHOLOGICAL REVIEW
Volume 115, Issue 4, Pages 787-835Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/a0013118
Keywords
overt visual search; computational models; saccade target selection; population coding; center-of-gravity fixations
Categories
Funding
- Army Research Office [DAAD19-03-1-0039]
- National Institute of Mental Health [R01 MH63748]
- NATIONAL INSTITUTE OF MENTAL HEALTH [R01MH063748] Funding Source: NIH RePORTER
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The gaze movements accompanying target localization were examined via human observers and a computational model (target acquisition model [TAM]). Search contexts ranged from fully realistic scenes to toys in a crib to Os and Qs, and manipulations included set size, target eccentricity, and target-distractor similarity. Observers and the model always previewed the same targets and searched identical displays. Behavioral and simulated eye movements were analyzed for acquisition accuracy, efficiency, and target guidance. TAM's behavior generally fell within the behavioral mean's 95% confidence interval for all measures in each experiment/condition. This agreement suggests that a fixed-parameter model using spatiochromatic filters and a simulated retina, when driven by the correct visual routines, can be a good general-purpose predictor of human target acquisition behavior.
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