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

Distributed processing by visual interneurons of crayfish brain. I. Response characteristics and synaptic

H L Wood, R M Glantz

    Journal of Neurophysiology
    |March 1, 1980
    PubMed
    Summary

    Crayfish visual interneurons form a complex network. Optic nerve fibers directly connect to higher-order neurons, suggesting a key role in visual information processing and neural coding.

    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

    [Sulfonamide anuria].

    Vrachebnoe delo·2010
    Same author

    Osteoma of Ilium.

    Proceedings of the Royal Society of Medicine·2009
    Same author

    Abdominal Tumour: Case for Diagnosis.

    Proceedings of the Royal Society of Medicine·2009
    Same author

    Pott's Disease of Lumbar Spine, of unusual type, with Psoas and Gluteal Abscesses.

    Proceedings of the Royal Society of Medicine·2009
    Same author

    Recent Ulnar Nerve Palsy associated with an old injury to the Elbow-joint and a Cervical Rib.

    Proceedings of the Royal Society of Medicine·2009
    Same author

    A Giant-celled Tumour of a Lumbar Vertebra.

    Proceedings of the Royal Society of Medicine·2009

    Area of Science:

    • Neuroscience
    • Animal Behavior
    • Sensory Systems

    Background:

    • Crayfish visual system processing relies on interneurons.
    • Optic nerve sustaining fibers (tonic on-cells) are crucial for visual input.
    • Understanding synaptic interactions is key to deciphering neural circuits.

    Purpose of the Study:

    • To investigate the visual responses and synaptic connections of crayfish interneurons.
    • To determine the role of optic nerve sustaining fibers in visual processing.
    • To elucidate the network organization and information transfer mechanisms.

    Main Methods:

    • Electrophysiological recordings of interneuron activity.
    • Depolarization of sustaining fibers to observe downstream effects.
    • Cross-correlation analysis of impulse trains and synaptic potentials.

    Related Experiment Videos

  • Identification of distinct classes of descending visual interneurons.

    • Main Results:

    • Sustaining fibers directly excite descending visual interneurons, providing primary visual input.
    • Four classes of descending interneurons (tonic and phasic) were identified based on response properties.
    • Approximately 84% of examined interneurons showed functional connections with other visual interneurons.
    • Synaptic delays and postsynaptic integration times were quantified, revealing complex network dynamics.

    Conclusions:

    • Crayfish descending visual interneurons are organized into a complex, interconnected network.
    • This network structure facilitates the coordinated discharge of interneuron subpopulations.
    • Impulse coordination within parallel interneurons is proposed as a mechanism for neural coding and information transfer.