| Using metamers to explore motion perception. | |
| | |
MedLine Citation:
|
PMID: 2017888 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
We examined conditions under which two quite different types of random-dot cinematograms were perceptually matched. In one stimulus type, directions of motion were defined by a uniform distribution; in the other, directions were drawn from a discrete set of just a few, widely separated directions. Cinematograms whose range of uniformly distributed directions lay between 180 and 270 deg could be matched by cinematograms containing just 6-10 discrete directions. The number of discrete directions required for a match was a nonmonotonic function of the range of directions present in the other cinematogram. The results are consistent with a line-element model in which the outputs of 12 direction-selective mechanisms, each with a half-amplitude half-bandwidth of 30 deg, are combined nonlinearly to produce the percept of motion. |
| | |
Authors:
|
D Williams; S Tweten; R Sekuler |
Related Documents
:
|
14995648 - Directed molecular transport in an oscillating symmetric channel. 4088798 - Modifying the gestalt factor of proximity: theories compared. 2717948 - Neural integration of information specifying structure from stereopsis and motion. 8351848 - Movement direction analysers: independence and bandwidth. 4040208 - Diurnal rhythms in calcium and phosphate metabolism in rodents and their relations to l... 15846388 - Effect of illumination on visual function after monofocal and multifocal intraocular le... |
Publication Detail:
|
Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
|
Title: Vision research Volume: 31 ISSN: 0042-6989 ISO Abbreviation: Vision Res. Publication Date: 1991 |
Date Detail:
|
Created Date: 1991-05-17 Completed Date: 1991-05-17 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0417402 Medline TA: Vision Res Country: ENGLAND |
Other Details:
|
Languages: eng Pagination: 275-86 Citation Subset: IM; S |
Affiliation:
|
Department of Neurobiology and Physiology, Northwestern University, Evanston, IL 60208. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Humans Male Mathematics Models, Biological Motion Perception / physiology* Pattern Recognition, Visual / physiology* Psychometrics |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Accommodation without pupillary constriction.
Next Document: Development of motion-specific cortical responses in infancy.