Abstract

The perceptual interaction between fields of near-parallel lines and dynamic visual noise, which generates a continuous moving “complementary image”, was investigated by varying the relative timing of flash-presentations of the inducing pattern and the noise field. For paired presentations with repetition periods between 70 and 180 msec two distinct critical phases (of noise relative to pattern) are described, at which the CI was stronger than, or different from, that for simultaneous presentation. For repetition periods above some 200 msec, a third critical phase took the place of the others, indicating that for isolated presentations the interaction is strongest when the noise follows the pattern by about 90 msec. No interaction was observed if pattern and noise were presented dichoptically.

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