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

Displacement thresholds in central and peripheral vision during tracking.

R F Haines

    Aviation, Space, and Environmental Medicine
    |June 1, 1986
    PubMed
    Summary

    Observers accurately judged line displacement more often with longer stimulus durations. Results suggest visual perception thresholds may rely on constant velocity, with eye movement signals potentially aiding judgment.

    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

    Evaluation of nitrostyrenes as antifungal agents. I. In vitro studies.

    Antibiotics & chemotherapy (Northfield, Ill.)·2014
    Same author

    Telesurgery. Acceptability of compressed video for remote surgical proctoring.

    Archives of surgery (Chicago, Ill. : 1960)·1996
    Same author

    Schizophrenia, narcolepsy, and HLA-DR15, DQ6.

    Biological psychiatry·1993
    Same author

    The effects of window shape and reticle presence on performance in a vertical alignment task.

    Aviation, space, and environmental medicine·1989
    Same author

    Space vehicle approach velocity judgments under simulated visual space conditions.

    Aviation, space, and environmental medicine·1989
    Same author

    Vertical displacement threshold sensitivity along the horizontal meridian as a function of stimulus rate, duration, and length.

    Aviation, space, and environmental medicine·1988

    Area of Science:

    • Visual perception
    • Human psychophysics
    • Oculomotor system

    Background:

    • Understanding visual displacement perception is crucial for fields like virtual reality and autonomous systems.
    • Previous research suggests visual thresholds are influenced by stimulus motion characteristics.

    Purpose of the Study:

    • To investigate how stimulus duration and angular velocity affect the accuracy of judging linear displacement.
    • To explore the role of visual cues and potential corollary neural discharges in displacement perception.

    Main Methods:

    • Twenty-six observers participated in forced-choice, paired comparison trials.
    • Stimuli involved a horizontally oriented line moving downward at various angles (0.6-60 arc minutes).
    • Displacements were manipulated using 5 durations (0.25-4s) and 4 angular velocities (0.042-0.25 deg/s).

    Main Results:

    • Increasing stimulus duration significantly improved the accuracy of displacement judgments.
    • Results align with a constant velocity hypothesis for visual thresholds across tested durations and velocities.
    • Eye fixation remained on the stimulus, suggesting corollary neural discharge from eye rotation may contribute to judgment.

    Conclusions:

    • Stimulus duration is a key factor in accurate visual displacement perception.
    • The findings support a velocity-based threshold model but highlight the potential role of oculomotor signals.
    • Further research is needed to elucidate the precise contribution of corollary discharge in visual motion judgments.

    Related Experiment Videos