Role of Orientation Processing in the Eggs Illusion. (December 2019)
- Record Type:
- Journal Article
- Title:
- Role of Orientation Processing in the Eggs Illusion. (December 2019)
- Main Title:
- Role of Orientation Processing in the Eggs Illusion
- Authors:
- Qian, Kun
Mitsudo, Hiroyuki - Abstract:
- In the eggs illusion, small patches perceptually deform when placed at the midpoints between the intersections of a regular grid. In this study, we explored the role of orientation processing in the illusion, by manipulating some spatiotemporal stimulus parameters using three psychophysical experiments. In Experiment 1, we manipulated grid luminance and presentation duration as independent variables and found that the illusion occurred even with a brief presentation of approximately 200 to 300 ms. In Experiments 2 and 3, besides presentation duration, we also systematically varied the orientation information of the stimulus. In addition to the original grid pattern, stimuli with only horizontal or vertical bars were employed in Experiment 2. The magnitude of the illusion was significantly weakened under the bar conditions. In Experiment 3, we varied the orientation of the bars stepwise and revealed that the local orientation information around the circular patches and the relative orientation information provided by the orthogonal bars of the grid are contributing factors to the illusion. Based on these results, we discussed the role of orientation processing in generating the eggs illusion.
- Is Part Of:
- Perception. Volume 48:Number 12(2019)
- Journal:
- Perception
- Issue:
- Volume 48:Number 12(2019)
- Issue Display:
- Volume 48, Issue 12 (2019)
- Year:
- 2019
- Volume:
- 48
- Issue:
- 12
- Issue Sort Value:
- 2019-0048-0012-0000
- Page Start:
- 1197
- Page End:
- 1213
- Publication Date:
- 2019-12
- Subjects:
- visual illusion -- shape perception -- orientation processing
Perception -- Periodicals
Perception -- Periodicals
Perception
Periodicals
153.705 - Journal URLs:
- http://pec.sagepub.com/ ↗
http://www.pion.co.uk/ ↗ - DOI:
- 10.1177/0301006619878954 ↗
- Languages:
- English
- ISSNs:
- 0301-0066
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 11966.xml