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

Stereopsis and binocularity in the squirrel monkey

M S Livingstone, S Nori, D C Freeman

    Vision Research
    |February 1, 1995
    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

    Sex change in plants: Old and new observations and new hypotheses.

    Oecologia·2017
    Same author

    Automated chair-training of rhesus macaques.

    Journal of neuroscience methods·2016
    Same author

    Modification of properties of yttria stabilized zirconia epitaxial thin films by excimer laser annealing.

    ACS applied materials & interfaces·2014
    Same author

    Developmental stability and its applications in ecotoxicology.

    Ecotoxicology (London, England)·2013
    Same author

    Republication of The Journal of Physiology (1959) 148, 574-591: Receptive fields of single neurones in the cat's striate cortex. 1959.

    The Journal of physiology·2009
    Same author

    Is it warm? Is it real? Or just low spatial frequency?

    Science (New York, N.Y.)·2007
    Same journal

    Editorial for VSI Amblyopia: Advances in Amblyopia Research.

    Vision research·2026
    Same journal

    Computational and mathematical models in vision: Quantitative approaches to understanding visual perception.

    Vision research·2026
    Same journal

    Complex interactions between lightness, chroma, and hue in color ensemble perception.

    Vision research·2026
    Same journal

    Driving with autism spectrum disorder: Exploring the impact of tactile hazard warnings on gaze behavior and hazard responses.

    Vision research·2026
    Same journal

    Early visual processing in adults with ADHD: evidence from contrast sensitivity, spatial integration, and external noise.

    Vision research·2026
    Same journal

    Pupil reflexes generate the peripheral drift illusion due to ON/OFF motion responses.

    Vision research·2026
    See all related articles

    Squirrel monkeys may perceive 3D depth, despite lacking typical brain structures for it. This challenges the idea that ocular dominance columns are essential for stereopsis.

    Area of Science:

    • Neuroscience
    • Primate Vision
    • Visual Cortex

    Background:

    • Squirrel monkeys lack anatomically demonstrable ocular dominance columns in V1.
    • Their V1 exhibits a distinct ocular dominance distribution compared to macaques, with fewer cells strongly favoring one eye.

    Purpose of the Study:

    • To investigate the squirrel monkey's physiological capacity for stereoscopic depth perception.
    • To determine if stereopsis is possible in the absence of well-defined ocular dominance columns.

    Main Methods:

    • Evoked potentials were measured in an alert squirrel monkey.
    • Responses were recorded to cyclopean patterns presented in dynamic random-dot stereograms.
    • Stimuli included changes in binocular disparity and correlation shifts.

    Related Experiment Videos

    Main Results:

    • The squirrel monkey demonstrated evoked responses to stereoscopic stimuli.
    • Responses indicated sensitivity to both disparity changes and correlation shifts between the eyes.
    • This suggests the capacity for stereoscopic depth detection.

    Conclusions:

    • Squirrel monkeys possess the ability to detect stereoscopic depth.
    • The findings question the necessity of ocular dominance columns for stereopsis.
    • This challenges established assumptions linking brain structure to visual function.