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

Motion perception at scotopic light levels.

K R Gegenfurtner1, H M Mayser, L T Sharpe

  • 1Max-Planck-Institut für biologische Kybernetik, Tübingen, Germany. karl@kyb.tuebingen.mpg.de

Journal of the Optical Society of America. A, Optics, Image Science, and Vision
|September 7, 2000
PubMed
Summary
This summary is machine-generated.

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

What is the best fixation target? The effect of target shape on stability of fixational eye movements.

Vision research·2012
Same author

Smooth pursuit eye movements to isoluminant targets.

Journal of neurophysiology·2008
Same author

Sex-related differences in chromatic sensitivity.

Visual neuroscience·2008
Same author

Illusion effects on grasping are temporally constant not dynamic.

Journal of experimental psychology. Human perception and performance·2005
Same author

M-cone opsin gene number does not correlate with variation in L/M-cone sensitivity.

Vision research·2002
Same author

Effects of visual illusions on grasping.

Journal of experimental psychology. Human perception and performance·2001
Same journal

Multi-module collaborative optimization-driven fast speckle correlation imaging in variable environments.

Journal of the Optical Society of America. A, Optics, image science, and vision·2026
Same journal

Secrecy performance analysis of NOMA-UWOC systems over a vertically stratified WGG oceanic turbulence channel.

Journal of the Optical Society of America. A, Optics, image science, and vision·2026
Same journal

Backscattering of plane waves in a composite system containing a rough surface and anisotropic scatterers.

Journal of the Optical Society of America. A, Optics, image science, and vision·2026
Same journal

Aspherical surface construction methods based on extended Jacobi polynomials.

Journal of the Optical Society of America. A, Optics, image science, and vision·2026
Same journal

OCT sidelobe suppression method based on dual-path phase sinusoidal modulation and minimum value fusion.

Journal of the Optical Society of America. A, Optics, image science, and vision·2026
Same journal

Optical design concepts using wavelength-selective diffractive optics to enable miniaturized multimodal endoscopic imaging across separated spectral ranges.

Journal of the Optical Society of America. A, Optics, image science, and vision·2026
See all related articles

Scotopic motion perception is possible near detection threshold. However, rod vision shows a 20% slower perceived velocity than cone vision, likely due to retinal temporal averaging.

Area of Science:

  • Visual Neuroscience
  • Sensory Physiology

Background:

  • Rod-mediated vision's spatial and temporal characteristics are well-studied.
  • Scotopic (low-light) motion perception remains poorly understood.

Purpose of the Study:

  • To characterize scotopic motion perception thresholds.
  • To compare motion perception between rod and cone vision.

Main Methods:

  • Determined motion detection and direction identification thresholds for sinusoidal gratings at scotopic levels.
  • Utilized normal, rod, S-cone, and deuteranope observers.
  • Employed silent substitution to isolate rod and L-cone vision.

Main Results:

  • Direction of motion is identifiable near detection threshold for both rod and cone vision.

Related Experiment Videos

  • Rod-mediated stimuli exhibit approximately 20% reduced perceived velocity compared to cone-mediated stimuli.
  • Velocity differences persist across investigated light intensities and below 4 Hz temporal frequencies.

    • Conclusions:

    • Scotopic motion direction identification is robust.
    • Reduced perceived velocity in rod vision is likely due to greater retinal temporal averaging.
    • A model proposing attenuation of high-velocity motion signals due to rod temporal averaging is suggested.