Document Detail

Active regulation of altitude as a function of optical texture.
MedLine Citation:
PMID:  1620568     Owner:  NLM     Status:  MEDLINE    
Two empirical studies are reported that examine active regulation of altitude as a function of the type of ground texture. Three ground textures were examined: lines perpendicular to the direction of motion, lines parallel to the direction of motion, and the combination (i.e., square or checkerboard texture). Although subjects only controlled altitude, disturbances were introduced on three axes: vertical, lateral, and fore-aft. The results show a clear advantage for texture parallel to the direction of motion. However, in considering these results in the context of previous research on altitude control, the argument is made that there is no compelling evidence that suggests either parallel (splay) or perpendicular (density) texture is privileged with regard to altitude control. Rather, the most effective display for altitude control will be the one that best isolates the optical activity associated with changing altitude from the optical activity arising from other sources of disturbance (such as forward locomotion). Such a display will make it easier for the observer to distinguish and respond specifically to the disturbances of altitude.
J M Flach; B A Hagen; J F Larish
Related Documents :
23263408 - Speech perception with combined electric-acoustic stimulation and bilateral cochlear im...
2234078 - The role of disparity-sensitive cortical neurons in signalling the direction of self-mo...
10022498 - Transient and permanent deficits in motion perception after lesions of cortical areas m...
22772288 - Micro/nano structures induced by femtosecond laser to enhance light extraction of gan-b...
19763958 - Photoorientation in photosynthetic flagellates.
20389378 - Edge-emitting ultraviolet n-zno:al/i-zno/p-gan heterojunction light-emitting diode with...
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Perception & psychophysics     Volume:  51     ISSN:  0031-5117     ISO Abbreviation:  Percept Psychophys     Publication Date:  1992 Jun 
Date Detail:
Created Date:  1992-08-06     Completed Date:  1992-08-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0200445     Medline TA:  Percept Psychophys     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  557-68     Citation Subset:  C; S    
Institute of Aviation, University of Illinois, Urbana.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Depth Perception
Distance Perception
Visual Fields
Visual Perception / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  The effect of orientation on tactual braille recognition: optimal touching positions.
Next Document:  Visually controlled matching of pattern movement.