Chapter

Motor Cortex

Jeremy D. Schmahmann and Deepak N. Pandya

in Fiber Pathways of the Brain

Published in print April 2006 | ISBN: 9780195104233
Published online May 2009 | e-ISBN: 9780199864294 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195104233.003.0011
 Motor Cortex

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This chapter describes the isotope injections placed in the motor cortex of six rhesus monkeys. It analyzes the resulting association, striatal, commissural, and subcortical fiber trajectories, as well as the cortical and subcortical terminations. The injections were in the frontal operculum in the precentral aspects of areas 1 and 2 (Case 24), ventral area 4 in the face representation (Case 25), area 4 behind the arcuate spur in the hand representation (Case 26), the dorsal precentral gyrus in the trunk representation region of area 4 (Case 27), the dorsal part of area 4 in the foot representation (Case 28), and the medial part of the superior frontal gyrus, rostral area MII, involving the face representation (Case 29).

Keywords: frontal operculum; precentral aspects; area 1; area 2; area 4

Chapter.  7824 words.  Illustrated.

Subjects: Neuroscience

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