Document Detail

Distance and Size Perception in Astronauts during Long-Duration Spaceflight.
MedLine Citation:
PMID:  25369884     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Exposure to microgravity during spaceflight is known to elicit orientation illusions, errors in sensory localization, postural imbalance, changes in vestibulo-spinal and vestibulo-ocular reflexes, and space motion sickness. The objective of this experiment was to investigate whether an alteration in cognitive visual-spatial processing, such as the perception of distance and size of objects, is also taking place during prolonged exposure to microgravity. Our results show that astronauts on board the International Space Station exhibit biases in the perception of their environment. Objects' heights and depths were perceived as taller and shallower, respectively, and distances were generally underestimated in orbit compared to Earth. These changes may occur because the perspective cues for depth are less salient in microgravity or the eye-height scaling of size is different when an observer is not standing on the ground. This finding has operational implications for human space exploration missions.
Gilles Clément; Anna Skinner; Corinna Lathan
Related Documents :
25152464 - Mismatch negativity (mmn) objectively reflects timbre discrimination thresholds in norm...
25271924 - Fully porous gan p-n junction diodes fabricated by chemical vapor deposition.
24734624 - Luminescent properties of nagdf4: ln3+ (ln3+ = ce3+, tb3+) phosphors.
25383014 - Statistical extraction affects visually guided action.
18564084 - Genetic evidence for male-biased dispersal in the three-spined stickleback (gasterosteu...
3789134 - Slowing of cross-bridge cycling in smooth muscle without evidence of an internal load.
Publication Detail:
Type:  Journal Article     Date:  2013-12-13
Journal Detail:
Title:  Life (Basel, Switzerland)     Volume:  3     ISSN:  2075-1729     ISO Abbreviation:  Life (Basel)     Publication Date:  2013  
Date Detail:
Created Date:  2014-11-05     Completed Date:  2014-11-05     Revised Date:  2014-11-08    
Medline Journal Info:
Nlm Unique ID:  101580444     Medline TA:  Life (Basel)     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  524-37     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

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

Previous Document:  Horizontal Gene Transfer and Its Part in the Reorganisation of Genetics during the LUCA Epoch.
Next Document:  Simulations of Prebiotic Chemistry under Post-Impact Conditions on Titan.