PMID: 9450533Feb 5, 1998Paper

Convergence and branching patterns of round, type 2 corticopulvinar axons

The Journal of Comparative Neurology
Kathleen S Rockland

Abstract

Corticopulvinar connections consist of at least two morphologically distinct subpopulations. In one subgroup (E, type 1), axons have an "elongated" terminal field and thin, spinous terminations; in the other (R, type 2), axons have a small, round arbor and large, beaded terminations. Previous work (Rockland, 1996) indicates that E-type axons from several occipitotemporal areas branch extensively within and sometimes between pulvinar subdivisions, but that R-type axons tend to have spatially delimited arbors. The present report is a further investigation of R-type axons from areas V1 and MT and was initiated to test the generality of the previous findings. There are four main results: 1) By serial section reconstruction of anterogradely labeled axons, 10 of 25 axons originating in area V1 had two or three spatially separate arbors (8 and 2 axons, respectively). Sixteen axons analyzed from area MT, however, all had single arbors, although the arbors were often formed by the convergence of widely separate branches. 2) Multiple (at least 2-5) R-type corticopulvinar axons, from V1 or from MT, can converge in a single focus. 3) R-type axons originating from both areas V1 and MT can branch to other structures; namely, the superior col...Continue Reading

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Citations

Jun 17, 1998·Proceedings of the National Academy of Sciences of the United States of America·S M Sherman, R W Guillery
Mar 11, 2003·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·S Murray Sherman, R W Guillery
Mar 11, 2003·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·R W Guillery, S M Sherman
Oct 17, 2003·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·S Shipp
May 7, 2010·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Rebecca A Berman, Robert H Wurtz
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Aug 11, 2010·Brain Research Reviews·R W Guillery, S Murray Sherman
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Feb 27, 2007·Neuroscience·S C Van Horn, S M Sherman
Jul 11, 2013·The Journal of Comparative Neurology·Kathleen S Rockland
Mar 30, 2016·Nature Neuroscience·S Murray Sherman
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Mar 16, 2018·The European Journal of Neuroscience·Kathleen S Rockland
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Jul 2, 2011·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Safiye CavdarFiliz Onat
May 6, 2011·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Safiye ÇavdarFiliz Onat
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Sep 1, 2020·Neuroscience·Akira Arafune-MishimaNoritaka Ichinohe
Aug 25, 2021·Journal of Cognitive Neuroscience·Randall C O'ReillyJohn Rohrlich

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