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Updated: Jul 11, 2026

Generating Strictly Controlled Stimuli for Figure Recognition Experiments
Published on: March 18, 2019
[Optical-geometric characteristics of fragmented figures and thresholds of their wholesome perception in repeated
Abstract:
Factors that lead to decreasing thresholds across repeated test sessions in Gollin incomplete figure test were investigated. In the first experiment, 4 tests with 5-day intervals and using same test figures, were conducted. Thresholds of recognition in each test and amplitude-frequency characteristics of test images were compared by correlation analysis. In the second investigation, 2 tests with 3-day intervals were conducted. In repeated tests, half figures were familiar to the subjects. In addition, half fragmented figures (both familiar an unfamiliar to the subjects) had such amplitude-frequency characteristics as in the first test. It was found that decreasing of thresholds was primary conditioned by optimization of mechanisms that work with statistical (not object) information.
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