Search performance with discrete-cell stimulus arrays: filtered naturalistic images and probabilistic markers

In order to partially fill the gap between search studies with artificial and naturalistic stimuli, experiments with segmented and spatially filtered images of real stimuli in the discrete cells of search arrays were conducted. RT × set size functions obtained with the spatially filtered arrays were...

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Bibliographic Details
Published in:Psychological research 2013-05, Vol.77 (3), p.277-302
Main Authors: Pinkus, Alan R., Poteet, Miriam J., Pantle, Allan J.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Approximation
Arrays
Attention - physiology
Behavioral Science and Psychology
Biological and medical sciences
Experiments
Female
Fundamental and applied biological sciences. Psychology
Human performance
Humans
Laboratories
Male
Middle Aged
Original Article
Perception
Photic Stimulation - methods
Psychological research
Psychology
Psychology Research
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Vision
Visual Perception - physiology
Young Adult
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Summary:In order to partially fill the gap between search studies with artificial and naturalistic stimuli, experiments with segmented and spatially filtered images of real stimuli in the discrete cells of search arrays were conducted. RT × set size functions obtained with the spatially filtered arrays were compared with those obtained with geometric and other types of arrays. With the aid of Fourier analysis, components of target certainty/uncertainty, target-distractor similarity/dissimilarity, and distractor homogeneity/heterogeneity were evaluated for their effects on search performance and efficiency. The comparative effects of valid/invalid and ambiguous/unambiguous markers of search items were included in the experiments to probe the potential contributions of top-down and bottom-up control to search with naturalistic stimuli. Visual coding in the form of spatial frequency passbands and top-down preferences for distractor search were used to explain the results.
ISSN:0340-0727
1430-2772
DOI:10.1007/s00426-012-0434-z