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

Marathon adaptation to spatial contrast: saturation in sight.

S Magnussen, M W Greenlee

    Vision Research
    |January 1, 1985
    PubMed
    Summary

    Visual adaptation to a high-contrast grating linearly increases contrast detection thresholds. Thresholds stabilize after 30-60 minutes, and recovery rates are unaffected by further adaptation.

    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

    Sample-based Maximum Likelihood Estimation of the Autologistic Model.

    Journal of applied statistics·2024
    Same author

    Forecasting brain activity based on models of spatiotemporal brain dynamics: A comparison of graph neural network architectures.

    Network neuroscience (Cambridge, Mass.)·2023
    Same author

    A graph neural network framework for causal inference in brain networks.

    Scientific reports·2021
    Same author

    Hybridizing EMD with cICA for fMRI Analysis of Patient Groups.

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2020
    Same author

    Do graphemes attract spatial attention in grapheme-color synesthesia?

    Neuropsychologia·2017
    Same author

    Spurious correlations in simultaneous EEG-fMRI driven by in-scanner movement.

    NeuroImage·2016

    Area of Science:

    • Vision science
    • Perceptual psychology
    • Visual adaptation

    Background:

    • Visual adaptation is a fundamental process influencing visual perception.
    • Understanding contrast adaptation is crucial for visual neuroscience.
    • Previous research indicates adaptation affects contrast sensitivity.

    Purpose of the Study:

    • To quantify the relationship between adaptation time and contrast detection thresholds.
    • To investigate the recovery function of contrast sensitivity after adaptation.
    • To determine if adaptation beyond saturation impacts recovery.

    Main Methods:

    • Tracking contrast detection thresholds for a 6.0 c/deg vertical sinusoidal grating.
    • Utilizing a high-contrast adapting grating of identical spatial frequency and orientation.
    • Measuring thresholds during and after a 3-hour adaptation period.

    Main Results:

    • Log contrast threshold increased linearly with log adaptation time.
    • Thresholds stabilized after approximately 30 and 60 minutes for the two subjects.
    • The recovery function exhibited linear behavior on double logarithmic axes.

    Conclusions:

    • Visual adaptation leads to a predictable, linear increase in contrast detection thresholds.
    • Adaptation time significantly influences the magnitude of threshold elevation.
    • Adaptation beyond the saturation point does not alter the subsequent recovery rate.

    Related Experiment Videos