Neuroanatomy pp 202-219 | Cite as

Fibre Degeneration Following Lesions of the Amygdaloid Complex in the Monkey

  • W. J. H. Nauta
Part of the Contemporary Neuroscientists book series (CN)


Of the amygdaloid projection pathways the stria terminalis has traditionally received strong emphasis in anatomical studies, and less attention has customarily been given other fibre systems originating in the amygdaloid complex. It is, however, known that the amygdala is connected with other basal telencephalic structures and with the diencephalon by a massive ventral fibre system which spreads forward and medially through the region underneath the lentiform nucleus. This fibre system appears to have been recognized first by Johnston (1923), who considered it to be an amygdalofugal component of his ‘longitudinal association bundle’. Johnston limited his account of this projection system to the statement that such fibres beneath the globus pallidus join ‘the general system of precommissural fibres passing up through the parolfactory area’. Later workers, on the basis of experimental-anatomical observations in the cat, described distributions of the ventral amygdalofugal fibre system to the preoptic region and hypothalamus (Lammers & Lohman, 1957; Hall, 1960), the bed nucleus of the stria terminalis (Fox, 1943), the caudate nucleus and the subcallosal gyrus (Lammers & Lohman, 1957).


Medial Forebrain Bundle Uncinate Fasciculus Stria Terminalis Inferior Temporal Gyrus Olfactory Tubercle 

Key to Abbreviations Used in Figures


anterior commissure


area dorsalis hypothalami


nucleus anterior hypothalami


ansa lenticularis


nucleus anterior medialis thalami


ansa peduncularis


nucleus anterior ventralis thalami


basal amygdaloid nucleus


capsula interns




nucleus dorsomedialis hypothalami


cortical amygdaloid nucleus


nucleus dorsomedialis thalami, pars medialis




fasciculus uncinatus


globus pallidus


gyrus rectus




lateral amygdaloid nucleus


nucleus lateralis hypothalami


nucleus preopticus lateralis


nucleus preopticus medialis


nucleus ansae peduncularis


nucleus caudatus


nucleus of the diagonal band of Broca


nucleus striae terminalis


nucleus subthalamicus


cortex prepiriformis




nucleus supraopticus


nucleus supraopticus diffuses


stria terminalis


tractus opticus


tuberculum olfactorium


lateral ventricle


nucleus ventralis anterior thalami


nucleus ventralis lateralis thalami


nucleus ventromedialis hypothalami


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Copyright information

© Birkhäuser Boston 1993

Authors and Affiliations

  • W. J. H. Nauta
    • 1
  1. 1.Department of NeurophysiologyWalter Reed Army Institute of ResearchUSA

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