title: Visual Interhemispheric and Striate-Extrastriate Cortical Connections in the Rabbit: A Multiple Tracer Study.
abstract: Previous studies in rabbits identified an array of extrastriate cortical areas anatomically connected with V1 but did not describe their internal topography. To address this issue, we injected multiple anatomical tracers into different regions in V1 of the same animal and analyzed the topography of resulting extrastriate labeled fields with reference to the patterns of callosal connections and myeloarchitecture revealed in tangential sections of the flattened cortex. Our results extend previous studies and provide further evidence that rabbit extrastriate areas resemble the visual areas in rats and mice not only in their general location with respect to V1 but also in their internal topography. Moreover, extrastriate areas in the rabbit maintain a constant relationship with myeloarchitectonic borders and features of the callosal pattern. These findings highlight the rabbit as an alternative model to rats and mice for advancing our understanding of cortical visual processing in mammals, especially for projects benefiting from a larger brain.
authors.affiliation: Department of Psychology and Behavior and Neuroscience Program, University of Washington, Seattle, WA 98195-1525, USA.
authors.forename: Adrian K
authors.initials: AK
authors.lastname: Andelin
authors.affiliation: BioReliance Corporation, Rockville, MD 20850, USA.
authors.forename: David J
authors.initials: DJ
authors.lastname: Bruning
authors.affiliation: Department of Neurobiology and Anatomy, University of Texas Medical School at Houston, Houston, TX 77030, USA.
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Felleman
authors.affiliation: Department of Psychology and Behavior and Neuroscience Program, University of Washington, Seattle, WA 98195-1525, USA.
authors.forename: Jaime F
authors.initials: JF
authors.lastname: Olavarria