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

Common reference system for estimation of the postural and subjective visual vertical.

K Jaggi-Schwarz1, B J M Hess

  • 1Department of Neurology, University of Zürich, Zürich, Switzerland. karin.jaggi@nox.usz.ch

Annals of the New York Academy of Sciences
|December 10, 2003
PubMed
Summary

Human spatial orientation errors, like the Aubert (A-phenomenon) and Müller (E-phenomenon) effects, depend on vestibular system activation. This study investigated how optimal otolith and semicircular canal function impacts verticality perception.

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

Static and dynamic properties of vergence-induced reduction of ocular counter-roll in near vision.

The European journal of neuroscience·2005
Same author

Direction specific error patterns during continuous tracking of the subjective visual vertical.

Experimental brain research·2004
Same author

Reciprocal error behavior in estimated body position and subjective visual vertical.

Experimental brain research·2003
Same author

Combined influence of vergence and eye position on three-dimensional vestibulo-ocular reflex in the monkey.

Journal of neurophysiology·2002
Same author

Geometrical properties of three-dimensional binocular eye position in light sleep.

Vision research·2002
Same author

Canal-otolith interactions after off-vertical axis rotations I. Spatial reorientation of horizontal vestibuloocular reflex.

Journal of neurophysiology·2000

Area of Science:

  • Neuroscience
  • Human Perception
  • Vestibular System

Background:

  • The Aubert (A-phenomenon) and Müller (E-phenomenon) effects describe systematic errors in perceiving verticality during body tilt.
  • Previous research attributed these errors primarily to otolith and somatosensory signal interactions.
  • Traditional methods often avoided semicircular canal activation by using slow tilts or prolonged static positions.

Purpose of the Study:

  • To test the hypothesis that combined optimal activation of otolith organs and semicircular canals enhances the reliability of vestibular cues for spatial orientation.
  • To compare error patterns in visual vertical perception and perceived body position under dynamic vestibular stimulation.

Main Methods:

  • Utilized self-controlled passive body tilts at constant velocity or acceleration.

Related Experiment Videos

  • Investigated the influence of dynamic vestibular stimulation on spatial orientation perception.
  • Compared estimations of the visual vertical with perceived body position.

    • Main Results:

    • Systematic underestimation of earth-vertical at large tilt angles (A-phenomenon) and overestimation at small tilt angles (E-phenomenon) were observed.
    • Dynamic vestibular stimulation involving both otolith and semicircular canal activation influenced error behaviors.
    • Error patterns differed between visual vertical and perceived body position estimations.

    Conclusions:

    • Optimal activation of both otolith and semicircular canal systems is crucial for reliable vestibular self-orientation cues.
    • Dynamic vestibular stimulation provides a more comprehensive understanding of spatial orientation mechanisms.
    • Further research is needed to fully elucidate the interplay between different vestibular components in spatial perception.