Neuroscience and Behavioral Physiology

, Volume 42, Issue 5, pp 434–437 | Cite as

Retinotopic Organization of the Posteromedial Area of the Lateral Suprasylvian Sulcus Shown by Analysis of the Pattern of Corticocortical Connections with Field 17 in Cats

  • N. S. Merkulieva
  • F. N. Makarov

Analysis of the structure of intercortical connections was used to study the retinotopic organization of the visual area located in the posteromedial wall of the lateral suprasylvian sulcus (PMLS) in cats. The retrograde axonal tracer horseradish peroxidase (HRP) was administered into the PMLS and initial neurons were studied in field 17. The pattern of the distribution of labeled cells in field 17 after administration of HRP into the projection of the center of the visual field corresponded to the retinotopic map reported in [8]. However, after administration of HRP into the projection of the upper visual field [8], initial neurons in field 17 were found in the representation of the lower periphery of the visual field: from –10° to –60° on the vertical meridian and from 40° to 80° on the horizontal meridian. This non-correspondence in the representations of the upper and lower visual fields has also been seen in electrophysiological and topographical studies [5]; these data provide evidence for the need to use the Grant and Shipp retinotopic map in morphofunctional studies of the PMLS in cats.


corticocortical connections field 17 PMLS retinotopics 


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Copyright information

© Springer Science+Business Media, Inc. 2012

Authors and Affiliations

  1. 1.I. P. Pavlov Institute of Physiology, Russian Academy of SciencesSt. PetersburgRussia

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