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Increment Thresholds in Illusory Contour Line Patterns

  • Maxwell K. Jory

Abstract

The increment threshold for a small spot of light has been used as a probe to investigate the brightness and physical intensity of stimulus patterns in terms of changes in sensitivity of the visual system. Increment thresholds have been measured in the center of a uniformly illuminated area (Cornsweet & Teller, 1965), near the borders between contrasting areas (Burkhardt, 1966; Fiorentini & Zoli, 1966, 1967; Novak & Sperling, 1963; Van Esen & Novak, 1974; Ward & Tansley, 1974; Wildman, 1974), across regions displaying Mach bands (Novak, 1969; Petry, Hood, & Goodkin, 1973), and across the apparent edge formed by illusory contours (Coren & Theodor, 1977).

Keywords

Target Location Lateral Inhibition Illusory Contour Line Edge Target Spot 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag New York Inc. 1987

Authors and Affiliations

  • Maxwell K. Jory

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