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| Title |
Curvature Blindness Illusion
|
|---|---|
| Published in |
i-Perception, November 2017
|
| DOI | 10.1177/2041669517742178 |
| Pubmed ID | |
| Authors |
Kohske Takahashi |
| 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. |
X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 89 | 11% |
| Japan | 76 | 9% |
| United Kingdom | 37 | 4% |
| Germany | 16 | 2% |
| Canada | 14 | 2% |
| Spain | 8 | <1% |
| Sweden | 5 | <1% |
| Sri Lanka | 4 | <1% |
| Austria | 4 | <1% |
| Other | 63 | 7% |
| Unknown | 531 | 63% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 729 | 86% |
| Scientists | 93 | 11% |
| Science communicators (journalists, bloggers, editors) | 13 | 2% |
| Practitioners (doctors, other healthcare professionals) | 12 | 1% |
Mendeley readers
The data shown below were compiled from readership statistics for 42 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 42 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 8 | 19% |
| Other | 6 | 14% |
| Researcher | 6 | 14% |
| Professor > Associate Professor | 5 | 12% |
| Student > Master | 5 | 12% |
| Other | 9 | 21% |
| Unknown | 3 | 7% |
| Readers by discipline | Count | As % |
|---|---|---|
| Psychology | 11 | 26% |
| Computer Science | 7 | 17% |
| Neuroscience | 5 | 12% |
| Medicine and Dentistry | 2 | 5% |
| Chemistry | 2 | 5% |
| Other | 10 | 24% |
| Unknown | 5 | 12% |
Attention Score in Context
This research output has an Altmetric Attention Score of 906. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 28 May 2024.
All research outputs
#20,390
of 26,510,696 outputs
Outputs from i-Perception
#2
of 625 outputs
Outputs of similar age
#359
of 452,954 outputs
Outputs of similar age from i-Perception
#1
of 22 outputs
Altmetric has tracked 26,510,696 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 625 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 19.5. This one has done particularly well, scoring higher than 99% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 452,954 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 22 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 95% of its contemporaries.