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On the microgenesis of illusory figures: a failure to replicate
1University of California, Davis 95616-8686.
Perception
|January 1, 1994
Summary
Early research on illusory contours suggested viewing time affected perception. However, subsequent replication attempts with improved methods failed, questioning the original findings and their theoretical implications.
Area of Science:
- Visual Perception
- Cognitive Psychology
Background:
- Illusory contours are visual phenomena where edges are perceived without physical presence.
- Previous research by Reynolds (1981) indicated a relationship between viewing time and illusory contour perception.
- These findings supported 'problem-solving' theories of visual perception.
Purpose of the Study:
- To clarify and rectify the published record regarding Reynolds' (1981) findings on illusory contours.
- To re-evaluate the evidential underpinnings of 'problem-solving' theories of illusory contours.
Main Methods:
- Review and analysis of previous findings on illusory contours and viewing time.
- Examination of three replication attempts using improved methodologies.
Main Results:
- Reynolds' (1981) findings on the effect of viewing time on illusory contour reports could not be replicated.
- Replication attempts with enhanced methodology consistently failed to reproduce the original results.
Conclusions:
- The failure to replicate Reynolds' (1981) findings does not necessarily refute 'problem-solving' theories of illusory contours.
- The study highlights the importance of robust replication in visual perception research.
- Clarification of the published record is essential for the advancement of perceptual theories.
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