Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Depth perception in random dot stereograms is not affected by changes in either vergence or accommodation

F Gonzalez1, C Rivadulla, R Perez

  • 1Departamento de Fisiologia, Laboratorios de Neurociencia Ramón Dominguez, Santiago de Compostela, Spain.

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|November 3, 1998
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Transcranial static magnetic stimulation reduces seizures in a mouse model of Dravet syndrome.

Experimental neurology·2023
Same author

Cross-modal reaction of auditory and visual cortices after long-term bilateral hearing deprivation in the rat.

Brain structure & function·2019
Same author

[Cardiovascular Preparticipation Screening of young population. Position statement of Chilean Scientific Societies].

Revista chilena de pediatria·2018
Same author

Laparoscopic treatment of type II Mirizzi Syndrome with common bile duct plasty.

Journal of visceral surgery·2018
Same author

Effectiveness of antismoking drug treatment in patients with psychiatric comorbidity compared with patients without this comorbidity.

The Journal of the Egyptian Public Health Association·2018
Same author

Search for the Neutron Decay n→X+γ, Where X is a Dark Matter Particle.

Physical review letters·2018

Extraretinal cues are not necessary for scaling horizontal disparities. Depth perception increases with fixation distance, independent of vergence or accommodation, suggesting other mechanisms are at play.

Area of Science:

  • Vision Science
  • Perception Psychology

Background:

  • Understanding how the visual system perceives depth is crucial for explaining visual perception.
  • The role of extraretinal cues, such as vergence angle and accommodation, in scaling horizontal disparities for depth perception requires further investigation.

Purpose of the Study:

  • To investigate whether extraretinal cues (vergence angle, accommodation) are utilized to scale horizontal disparities based on fixation distance.
  • To test the hypothesis that these cues are essential for accurate depth perception at varying viewing distances.

Main Methods:

  • Depth perception was assessed using random dot stereograms in 10 healthy adults.
  • Parameters manipulated included retinal disparity, fixation distance, vergence angle, and accommodation.
  • Statistical analysis was employed to evaluate the collected data.

Related Experiment Videos

Main Results:

  • Depth perception demonstrated a positive correlation with increasing fixation distance.
  • This enhancement in depth perception was observed even when horizontal retinal disparity remained constant.
  • Depth perception magnitude was found to be independent of both vergence angle and accommodation.

Conclusions:

  • The findings suggest that extraretinal cues related to vergence angle and accommodation are not required for scaling horizontal disparities.
  • These cues appear unnecessary for adjusting depth perception according to viewing distance, indicating alternative scaling mechanisms.