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

Structure of layer II in cat primary auditory cortex (AI).

J A Winer

    The Journal of Comparative Neurology
    |August 1, 1985
    PubMed
    Summary

    This study details the cellular and axonal organization of layer II in cat auditory cortex, differentiating it from layer III. It identifies eight neuron types, aiding future research on neural connections and neurotransmitters.

    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

    Psychotherapy supervision : a current method.

    Academic psychiatry : the journal of the American Association of Directors of Psychiatric Residency Training and the Association for Academic Psychiatry·2014
    Same author

    Sexual problems found in users of a student mental health clinic.

    Journal of youth and adolescence·2014
    Same author

    Branched projections in the auditory thalamocortical and corticocortical systems.

    Neuroscience·2008
    Same author

    Two thalamic pathways to primary auditory cortex.

    Neuroscience·2008
    Same author

    Tonotopic and heterotopic projection systems in physiologically defined auditory cortex.

    Neuroscience·2004
    Same author

    Titration in the treatment of the more troubled patient.

    Journal of the American Psychoanalytic Association·2001

    Area of Science:

    • Neuroscience
    • Auditory Cortex Research
    • Cellular Architecture

    Background:

    • The primary auditory cortex (AI) in cats is crucial for auditory processing.
    • Understanding the intricate cellular structure of AI layers is fundamental for deciphering neural pathways.

    Purpose of the Study:

    • To meticulously describe the cytoarchitecture, myeloarchitecture, and neuronal organization of layer II in the adult cat primary auditory cortex.
    • To establish a detailed cellular framework for future studies on corticocortical connections and neurotransmitter systems.
    • To clearly distinguish the cellular characteristics of layer II from the adjacent layer III.

    Main Methods:

    • Detailed histological analysis of the primary auditory cortex (AI) in adult cats.
    • Utilized Golgi impregnation techniques to visualize neuronal morphology and axonal projections.
    • Microscopic examination focused on cytoarchitecture, myeloarchitecture, and laminar organization.

    Main Results:

    • Layer II was delineated, extending from 150-200 to approximately 400 microns beneath the pia, and divided into sublayers IIa and IIb.
    • Layer IIa features small, non-pyramidal neurons with sparse axonal plexuses, while layer IIb contains larger, densely packed neurons with more developed axonal networks.
    • Eight distinct neuron types were identified based on dendritic and axonal morphology, including various pyramidal and multipolar cells with unique arborization patterns.

    Conclusions:

    • The study provides a comprehensive description of layer II's cellular diversity and organization within the cat auditory cortex.
    • The identified neuronal types and their axonal projections offer a foundational map for investigating functional connectivity and neurochemistry.
    • Clear distinctions were established between layer II and layer III, aiding in the precise anatomical localization of neural circuits.

    Related Experiment Videos