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

Steady state visual evoked potentials in the alert primate

K Nakayama, M Mackeben

    Vision Research
    |January 1, 1982
    PubMed
    Summary

    Steady-state visual evoked potentials (SSVEP) in macaques reveal distinct neural mechanisms for pattern vision. SSVEP tuning varies with recording parameters, suggesting complex visual processing.

    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

    Proteolytic cleavages of proalbumin and complement Pro-C3 in vitro by a truncated soluble form of furin, a mammalian homologue of the yeast Kex2 protease.

    Biochemical and biophysical research communications·1992
    Same author

    Contralateral development of acute subdural hematoma following surgery for chronic subdural hematoma--case report.

    Neurologia medico-chirurgica·1992
    Same author

    [Invasive thymoma involving the liver: a case report of transdiaphragmatic extension].

    Kyobu geka. The Japanese journal of thoracic surgery·1992
    Same author

    [Intracranial primary malignant lymphoma following Behçet's disease--case report].

    No to shinkei = Brain and nerve·1992
    Same author

    Zinc triflate-promoted glycosidation: synthesis of lipid A disaccharide intermediates.

    Chemical & pharmaceutical bulletin·1992
    Same author

    Mammalian subtilisin-related proteinases in cleavage activation of the paramyxovirus fusion glycoprotein: superiority of furin/PACE to PC2 or PC1/PC3.

    Journal of virology·1992

    Area of Science:

    • Neuroscience
    • Visual Psychophysics
    • Electrophysiology

    Background:

    • Steady-state visual evoked potentials (SSVEP) are crucial for studying visual processing.
    • Understanding the neural basis of spatial and temporal frequency tuning in the visual system is essential.

    Purpose of the Study:

    • To investigate the characteristics of SSVEP in response to sinusoidal gratings.
    • To explore the relationship between SSVEP tuning and underlying neural mechanisms.
    • To compare SSVEP findings with psychophysical data.

    Main Methods:

    • Recording epidural SSVEP in macaque monkeys.
    • Presenting counterphase modulated sinusoidal gratings with varying spatial and temporal frequencies and contrasts.
    • Analyzing SSVEP amplitude and tuning properties.
    • Comparing electrophysiological data with psychophysical thresholds.

    Main Results:

    • SSVEP exhibited broad or narrow spatial frequency tuning, influenced by electrode location, temporal frequency, contrast, and analysis method.
    • Narrow temporal frequency tuning (0.5 octave at half height) was observed.
    • Contrast functions were nonlinear, suggesting a composite of at least two linear functions (low and high contrast).
    • Extrapolation of the low-contrast function matched psychophysical data, while the high-contrast function did not.

    Conclusions:

    • SSVEP can reflect activity from at least two distinct neural mechanisms involved in pattern stimulation.
    • The observed spatial and temporal frequency tuning of SSVEP depends on the relative contribution of these mechanisms.
    • SSVEP provides insights into the neural underpinnings of visual perception and contrast processing.

    Related Experiment Videos