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

Visual pursuit over textured backgrounds in different depth planes.

I P Howard1, C Marton

  • 1Centre for Vision Research, York University, North York, Ontario, Canada.

Experimental Brain Research
|January 1, 1992
PubMed
Summary

Smooth pursuit eye movements are disrupted by visual background motion. This study found pursuit disruption is minimized when the background is dark, regardless of its depth relative to the target.

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

Modifications of specimens in electron microscopy.

Science (New York, N.Y.)·2010
Same author

Nephrotic syndrome with focal segmental glomerulosclerosis after an insect bite.

Clinical nephrology·2006
Same author

The relative role of visual and non-visual cues in determining the perceived direction of "up": experiments in parabolic flight.

Acta astronautica·2005
Same author

Relative role of visual and non-visual cues in determining the direction of "up": experiments in the York tilted room facility.

Journal of vestibular research : equilibrium & orientation·2004
Same author

Effects of horizontal and vertical additive disparity noise on stereoscopic corrugation detection.

Vision research·2001
Same author

Visually induced reorientation illusions.

Perception·2001

Area of Science:

  • Visual neuroscience
  • Oculomotor control

Background:

  • Voluntary pursuit of moving objects is less smooth over textured backgrounds than dark ones.
  • Stationary target fixation on a moving background causes eye microdrifts, suggesting incomplete suppression of optokinetic nystagmus (OKN).

Purpose of the Study:

  • To investigate how background depth affects voluntary pursuit disruption.
  • To test the prediction that pursuit is more disrupted by a coplanar background than one nearer or further away.

Main Methods:

  • Measuring pursuit disruption via saccadic intrusion frequency and amplitude.
  • Comparing disruption with textured backgrounds at different depths (near, far, coplanar) versus the target.
  • Assessing horizontal and vertical pursuit separately.

Related Experiment Videos

Main Results:

  • Pursuit disruption was reduced when the background was further away for horizontal pursuit.
  • Disruption decreased for both near and far backgrounds during vertical pursuit.
  • Disruption was consistently lowest when the background was dark.

Conclusions:

  • Background depth influences the disruption of voluntary pursuit.
  • The visual system's processing of background motion during pursuit is depth-dependent.
  • Dark backgrounds minimize pursuit disruption, irrespective of depth relative to the target.