Effects of Luminance Contrast Factors upon Figural Aftereffects Induced by Short Fixation Periods

An experiment was designed to investigate the effects of luminance contrast factors upon the concentric circles aftereffect for very short periods of fixation. The general finding was that the immediate aftereffect increased as the luminance contrast of the inducing figure increased and decreased as the luminance contrast of the test figure increased.

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Investigation of Interactions of Luminance Contrast and Temporal Factors in Figural Aftereffects

Perceptual and Motor Skills ◽

10.2466/pms.1968.27.1.287 ◽

1968 ◽

Vol 27 (1) ◽

pp. 287-291 ◽

Cited By ~ 3

Author(s):

June Adam ◽

Marion Ring

Keyword(s):

Exposure Time ◽

Interstimulus Interval ◽

Luminance Contrast ◽

Test Figure ◽

Time Condition ◽

Temporal Factors ◽

Concentric Circles

An experiment was designed to investigate the possibility of interactions between luminance contrast factors and temporal factors in determining the magnitude of the concentric-circles aftereffect. 24 combinations of inducing figure exposure time, condition of test figure presentation (determined by test figure exposure time and interstimulus interval), inducing figure luminance contrast and test-figure luminance contrast, were used. No interactions were found.

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Disinhibition in concentric circles aftereffects as a function of luminance contrast

Psychonomic Science ◽

10.3758/bf03331724 ◽

1967 ◽

Vol 8 (12) ◽

pp. 507-508

Author(s):

John K. Adamowicz ◽

Robert E. Dewar

Keyword(s):

Luminance Contrast ◽

Concentric Circles

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Direction of a Figural Retroactive-Effect as a Function of Apparent Temporal Overlap of Test and Inducing Figures

Perceptual and Motor Skills ◽

10.2466/pms.1974.38.1.91 ◽

1974 ◽

Vol 38 (1) ◽

pp. 91-101

Author(s):

June Adam ◽

Ruth Heron ◽

Donna Cooper ◽

Alain Hepner

Keyword(s):

Visual Illusion ◽

Stimulus Sequence ◽

Test Figure ◽

Retroactive Effect ◽

Series Of Experiments ◽

Concentric Circles ◽

Attraction Effects ◽

Temporal Overlap

In a series of experiments using a concentric circles figure the direction of the figural retroactive-effect is related to the frequency with which Ss report apparent temporal overlap of inducing and test figures under different conditions of testing. The results suggest that figural retroactive-effects showing attraction of the test figure toward the inducing figure result from S's perception of a visual illusion during the stimulus sequence. Factors determining the occurrence of both apparent temporal overlap and attraction effects are investigated.

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