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Curvature Blindness Illusion
| Content Provider | SAGE Publishing |
|---|---|
| Author | Takahashi, Kohske |
| Copyright Year | 2017 |
| Abstract | We report a novel illusion––curvature blindness illusion: a wavy line is perceived as a zigzag line. The following are required for this illusion to occur. First, the luminance contrast polarity of the wavy line against the background is reversed at the turning points. Second, the curvature of the wavy line is somewhat low; the right angle is too steep to be perceived as an illusion. This illusion implies that, in order to perceive a gentle curve, it is necessary to satisfy more conditions––constant contrast polarity––than perceiving an obtuse corner. It is notable that observers exactly “see” an illusory zigzag line against a physically wavy line, rather than have an impaired perception. We propose that the underlying mechanisms for the gentle curve perception and those of obtuse corner perception are competing with each other in an imbalanced way and the percepts of corner might be dominant in the visual system. |
| Related Links | https://journals.sagepub.com/doi/pdf/10.1177/2041669517742178?download=true |
| ISSN | 20416695 |
| Issue Number | 6 |
| Volume Number | 8 |
| Journal | i-Perception (IPE) |
| e-ISSN | 20416695 |
| DOI | 10.1177/2041669517742178 |
| Language | English |
| Publisher | Sage Publications UK |
| Publisher Date | 2017-11-24 |
| Publisher Place | London |
| Access Restriction | Open |
| Rights Holder | © The Author(s) 2017 |
| Subject Keyword | curvature perception contours or surfaces illusion perception |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ophthalmology Experimental and Cognitive Psychology Artificial Intelligence Sensory Systems |
