| Effects of surface markings on judgments of motion direction. | |
| | |
MedLine Citation:
|
PMID: 16836041 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The effects of surface markings on perceived motion direction were examined for a rotating sphere in a structure-from-motion display. The markings were dot patterns representing separate line segments or intersecting line segments (crosses) covering the surface of the sphere. The orientation of the surface markings and their intersection angles affected the perceived direction of motion, suggesting that the markings were not interpreted as geodesics or planar cuts on the surface. The perceived direction of motion was biased towards the mean orientation of the markings over the visible area of the surface. A similar bias was observed for translating planar stimuli covered with crosses, suggesting that the bias is not specific to curved surfaces or motion in depth. The deviation between the simulated motion direction and the external horizontal and vertical axes also affected the perceived motion direction. These results suggest that the average orientation of surface contours with respect to an external reference frame influences the perceived direction of motion. |
| | |
Authors:
|
Nadejda Bocheva; Myron L Braunstein |
Publication Detail:
|
Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Perception Volume: 35 ISSN: 0301-0066 ISO Abbreviation: Perception Publication Date: 2006 |
Date Detail:
|
Created Date: 2006-07-13 Completed Date: 2006-10-10 Revised Date: 2007-11-14 |
Medline Journal Info:
|
Nlm Unique ID: 0372307 Medline TA: Perception Country: England |
Other Details:
|
Languages: eng Pagination: 723-48 Citation Subset: IM |
Affiliation:
|
Institute of Physiology, Bulgarian Academy of Sciences, 23 Acad. G Bonchev Street, BG 1113 Sofia, Bulgaria. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Depth Perception Humans Judgment Motion Perception* Optical Illusions Orientation Pattern Recognition, Visual Photic Stimulation / methods Psychophysics Rotation |
| Grant Support | |
ID/Acronym/Agency:
|
1R01EY12437/EY/NEI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Management of hip fracture: the family physician's role.
Next Document: Is pigmentation important for face recognition? Evidence from contrast negation.