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

Spatial frequency tuning of transient non-oriented units.

V P Ferrera, H R Wilson

    Vision Research
    |January 1, 1985
    PubMed
    Summary

    This study measured visual system thresholds using a flickering mask to understand spatial frequency sensitivity. Non-oriented visual mechanisms show broader spatial frequency tuning than previously studied orientation-selective units.

    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

    The Spherical Tokamak for Energy Production: theme issue introduction.

    Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2024
    Same author

    Long term study of motivational and cognitive effects of low-intensity focused ultrasound neuromodulation in the dorsal striatum of nonhuman primates.

    Brain stimulation·2022
    Same author

    Nonlinear Kinetic Ion Response to Small Scale Magnetic Islands in Tokamak Plasmas: Neoclassical Tearing Mode Threshold Physics.

    Physical review letters·2018
    Same author

    Nonlinear Stability and Saturation of Ballooning Modes in Tokamaks.

    Physical review letters·2016
    Same author

    Explosive instability and erupting flux tubes in a magnetized plasma.

    Proceedings. Mathematical, physical, and engineering sciences·2015
    Same author

    Rapid, minimally invasive adult voluntary male circumcision: A randomised trial.

    South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde·2013

    Area of Science:

    • Vision Science
    • Neuroscience
    • Psychophysics

    Background:

    • Spatial frequency perception is crucial for visual processing.
    • Understanding visual mechanisms requires characterizing their sensitivity to different spatial frequencies.
    • Previous studies often focused on orientation-selective units.

    Purpose of the Study:

    • To measure visual thresholds for a vertical test stimulus under varying spatial frequencies of a horizontal mask.
    • To compute the spatial frequency sensitivities of non-oriented visual mechanisms.
    • To compare the tuning of non-oriented mechanisms with orientation-selective units.

    Main Methods:

    • Measured detection thresholds for a vertical test stimulus (1.0 octave bandwidth).
    • Employed a horizontal flickering cosine mask (8.0 Hz temporal modulation).
    • Tested 10 spatial frequencies ranging from 0.25 to 8.0 cycles per degree (c/deg).

    Main Results:

    • Masking curves were generated for three subjects across different spatial frequencies.
    • Spatial frequency sensitivities of three non-oriented mechanisms were computed.
    • Non-oriented units exhibited broader spatial frequency sensitivity curves compared to orientation-selective units.

    Conclusions:

    • Non-oriented visual mechanisms possess broader spatial frequency tuning.
    • Findings align with existing primate neurophysiology data.
    • This research contributes to a more comprehensive understanding of visual processing mechanisms.

    Related Experiment Videos