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V. Thalamocortical Projection of the Magnocellular Medical Dorsal Nucleus in Man

JAY B. ANGEVINE, JR., PhD; SIMEON LOCKE, MD; PAUL I. YAKOVLEV, MD

Arch Neurol. 1964;10(2):165-180.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Introduction

Comparative studies of the thalami of various mammals,² including marsupials,⁵ the rabbit,^28,61,80 rodents,^25,29,33 the sheep,⁶² carnivores,^30,60,79 and primates,^10,15,72-75 demonstrate a progressive phylogenetic enlargement and differentiation of nucleus medialis dorsalis (MD), in parallel with the development and elaboration of the frontal lobes (ie, opercularization of insula). In man, MD is the largest member of the internal segment of the dorsal thalamus; the anterior, lateral, and inferior borders of the nucleus are clearly delineated by the internal medullary lamina in myelin-stained sections and are visible even in unstained slices of the fresh brain. The precise cytoarchitectonic differentiation of MD from neighboring nuclei—the midline and intralaminar nuclei and the medial pulvinar—is difficult, however, at several points.^54,65

A number of authors (Clark,¹⁰ Walker,^72-75 Sheps,⁶⁵ Toncray and Krieg,⁶⁹ Olszewski,⁵⁴ Dekaban¹⁸) have recognized in primates two or three and sometimes four . . . [Full Text PDF of this Article]

Author Affiliations
BOSTON

From departments of anatomy and neurology and the Warren Anatomical Museum, Harvard Medical School, and the Neurological Unit, Boston City Hospital.

Footnotes
Submitted for publication Oct 4, 1963; accepted Oct 12.

This investigation was supported in part by a US Public Health Service research grant (NB-00152-12) from the National Institute of Neurological Diseases and Blindness, Public Health Service.

Our own impressions, gathered from study of many series of cresyl-violet-stained sections of the human thalamus in coronal, horizontal, and sagittal planes, agree with those of Hassler and Kuhlenbeck.

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