Experimental evidence indicated that catecholamines are able to modulate information processing in the amygdaloid complex. The present study provides a detailed documentation of ultrastructural and neurochmical characteristics of dopaminergic, noradrinergic, and adrenergic afferent fibers and of their target structures in central, basal and intercalated amygdaloid nuclei.

Inhalt
1 Introduction.- 2 Materials and Methods.- 2.1 Tissue Preparation.- 2.2 Immunocytochemistry.- 2.3 In Situ Hybridization.- 3 Results and Discussions.- 3.1 Cytoarchitectonics.- 3.2 Comparative Light, Fluorescence, and Electron-Microscopic Studies of the Morphology and Neurochemistry of Catecholaminergic Afferent Fibers to the Amygdala.- 3.2.3 Conclusions for the Identification of Dopaminergic, Noradrenergic, and Adrenergic Structures.- 3.3 Ultrastructural Features of Neurons and Catecholaminergic Afferent Fibers in the Nucleus Centralis, the Basal Complex, and the Paracapsular Intercalated Cell Groups.- 3.4 Colocalization of Neuropeptides in Catecholaminergic Afferent Fibers to the Amygdala.- 3.5 Neurochemical Characterization of Possible Target Neurons of the Catecholaminergic Amygdala Innervation.- 4 Summary.- 4.1 Conclusions for the Individual Amygdaloid Nuclei.- 4.2 Conclusions for the Different Types of Catecholaminergic Innervation.- 5 References.