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  • Title: Neurofilament protein and neuronal activity markers define regional architectonic parcellation in the mouse visual cortex.
    Author: Van der Gucht E, Hof PR, Van Brussel L, Burnat K, Arckens L.
    Journal: Cereb Cortex; 2007 Dec; 17(12):2805-19. PubMed ID: 17337746.
    Abstract:
    This study was designed to assess the chemoarchitectural organization and extent of the mouse visual cortex. We used nonphosphorylated neurofilament protein, a neuronal marker that exhibits region-specific cellular and laminar patterns, to delineate cortical subdivisions. A comprehensive analysis demonstrated that pyramidal and nonpyramidal neurons expressing neurofilament proteins display striking laminar and regional patterns in the mouse visual cortex permitting the delineation of the primary visual cortex (V1) and its monocular and binocular zones, 2 lateral, and 5 medial extrastriate cortical areas with clear anatomical boundaries and providing evidence that the mouse medial extrastriate cortex is not homogeneous. We also investigated the expression profiles of 2 neuronal activity markers, the immediate early genes c-fos and zif-268, following deprivation paradigms to ascertain the visual nature of all subdivisions caudal, medial, and lateral to V1. The present data indicate that neurochemically identifiable subdivisions of the mouse visual cortex exist laterally and medially to V1 and reveal specific anatomical and functional characteristics at the cellular and regional levels.
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