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Cortical and subcortical afferents to the amygdala of the rhesus monkey (Macaca mulatta)
- Source :
- Brain research. 190(2)
- Publication Year :
- 1980
-
Abstract
- The afferent projections to the primate amygdala were studied using horseradish peroxidase. The potential advantages of this technique are discussed compared with those previously used to determine amygdaloid afferents. The findings indicate that certain agranular or dysgranular cortical regions may project directly to the amygdala: in particular, the orbital frontal cortex, anterior cingulate gyrus, subcallosal gyrus, temporal pole and anterior insula. These projections probably terminate predominantly in either the lateral or accessory basal nuclei. Other cortical projections from the inferotemporal and superior temporal gyri are described. Evidence was found for a heavy projection from the superior temporal sulcus to the lateral nucleus. Subcortical afferents were found from the hypothalamus, substantia innominata, diagonal band, thalamus, periaqueductal central gray, peripeduncular nucleus and from a band of cells extending medially from the peripeduncular nucleus to the midline, just ventral to the thalamus. In the thalamus, labelled cells were restricted to the non-specific nuclei, and were common in the rostral midline nuclei. No projection was observed from the dorsomedial nucleus of the thalamus. We discuss the implications of these results for interpreting the functions of the amygdala.
- Subjects :
- Thalamus
Hypothalamus
Amygdala
Basal Ganglia
Gyrus
Mesencephalon
Parietal Lobe
biology.animal
medicine
Animals
Primate
Dominance, Cerebral
Molecular Biology
Horseradish Peroxidase
Cerebral Cortex
Periamygdaloid cortex
Afferent Pathways
biology
General Neuroscience
Substantia innominata
Haplorhini
Superior temporal sulcus
Anatomy
Macaca mulatta
Temporal Lobe
Frontal Lobe
medicine.anatomical_structure
nervous system
Neurology (clinical)
Neuroscience
Brain Stem
Developmental Biology
Subjects
Details
- Language :
- English
- ISSN :
- 18726240 and 00068993
- Volume :
- 190
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Brain research
- Accession number :
- edsair.doi.dedup.....6d5b5a60831ceb3a3fdb8a96ccdc41e8