| Detecting changes in one's own velocity from the optic flow. | |
| | |
MedLine Citation:
|
PMID: 7845761 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Experiments were designed to establish whether we can use the optic flow to detect changes in our own velocity. Subjects were presented with simulations of forward motion across a flat surface. They were asked to respond as quickly as possible to a step increase in simulated ego-velocity. The smallest change for which subjects could respond within 500 ms was determined. At realistic simulated speeds of locomotion, the simulated ego-velocity had to increase by about 50%. The threshold for detecting changes in simulated ego-velocity was hardly better than the threshold for detecting other changes in the acceleration of the dots on the screen. It made little difference whether the surface across which the subject appeared to move was built up of dots, lines, or triangles; neither did it matter whether subjects saw the same image with both eyes, or whether the simulation was presented in stereoscopic depth. The results show that we are very poor at detecting changes in our own velocity on the basis of visual input alone. |
| | |
Authors:
|
J Monen; E Brenner |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Perception Volume: 23 ISSN: 0301-0066 ISO Abbreviation: Perception Publication Date: 1994 |
Date Detail:
|
Created Date: 1995-03-08 Completed Date: 1995-03-08 Revised Date: 2004-11-17 |
Medline Journal Info:
|
Nlm Unique ID: 0372307 Medline TA: Perception Country: ENGLAND |
Other Details:
|
Languages: eng Pagination: 681-90 Citation Subset: IM; S |
Affiliation:
|
Comparative Physiology and Utrecht Biophysics Research Institute, Utrecht University, The Netherlands. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Acceleration* Adult Attention* Computer Simulation Humans Kinesthesis* Motion Perception* Orientation Psychophysics Sensory Thresholds |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The effect of knowledge of object distance on accommodation during instrument viewing.
Next Document: The Hermann grid illusion: a tool for studying human perspective field organization.