Document Detail

Afferent connections to the amygdaloid complex of the rat and cat. I. Projections from the thalamus.
MedLine Citation:
PMID:  489786     Owner:  NLM     Status:  MEDLINE    
By the use of the retrograde transport of horseradish peroxidase (HRP), the projections from the thalamus to the amygdala were investigated in the rat and cat, with main emphasis on the former species. HRP was injected stereotactically by microiontophoresis in the various amygdaloid nuclei. Several control procedures including the use of different approaches for the introduction of the micropipette were undertaken to eliminate the possibility of misinterpretation due to uptake of the protein by adjacent structures or fibers en passant. The paraventricular and paratenial nuclei of the thalamus were found to project throughout the entire amygdaloid complex. The medial geniculate complex and the basal nucleus of the ventromedial complex (the thalamic taste relay) mainly project to the centromedial part of the amygdala. The basolateral nucleus is the main recipient of a hitherto undescribed bilateral thalamo-amygdaloid pathway originating in the interanteromedial nucleus. The parafasciculare nucleus projects to the central nucleus of the amygdala; in the cat mainly to the lateral subdivision of the central nucleus. The findings are discussed in relation to previous anatomical and electrophysiological studies centered on the amygdaloid complex. Special reference is made to the possible role of the thalamo-amygdaloid connections in the conveyance of sensory information to the amygdala.
O P Ottersen; Y Ben-Ari
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The Journal of comparative neurology     Volume:  187     ISSN:  0021-9967     ISO Abbreviation:  J. Comp. Neurol.     Publication Date:  1979 Sep 
Date Detail:
Created Date:  1979-12-20     Completed Date:  1979-12-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0406041     Medline TA:  J Comp Neurol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  401-24     Citation Subset:  IM    
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MeSH Terms
Afferent Pathways / anatomy & histology
Amygdala / anatomy & histology*
Brain Mapping
Geniculate Bodies / anatomy & histology
Species Specificity
Thalamic Nuclei / anatomy & histology*

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