Abstract:
:One of the lessons learned from studying the nervous systems of phylogenetically distant species is that many features are conserved. Indeed, aminergic neurons in invertebrate and vertebrate systems share a multitude of common characteristics. In this review, the varied roles of serotonin, octopamine, dopamine, and histamine in decapod crustaceans are considered, and the distributions of the amine-containing cells are described. The anatomy of these systems reinforces the idea that amine neurons are involved in widespread modulation and coordination within the nervous system. Many aminergic neurons have long projections, linking multiple regions with a common input, and therefore are anatomically perfected as "gain setters." The developmental patterns of appearance of each amine in the crustacean nervous system are described and compared. The developmental picture suggests that transmitter acquisition is distinctive for each amine, and that the pace of acquisition may be co-regulated with target maturation. The distinctive roles that transmitters play during specific developmental periods may, ultimately, provide important clues to their functional contributions in the mature organism.
journal_name
Microsc Res Techjournal_title
Microscopy research and techniqueauthors
Beltz BSdoi
10.1002/(SICI)1097-0029(19990115/01)44:2/3<105::AIkeywords:
subject
Has Abstractpub_date
1999-01-15 00:00:00pages
105-20issue
2-3eissn
1059-910Xissn
1097-0029pii
10.1002/(SICI)1097-0029(19990115/01)44:2/3<105::AIjournal_volume
44pub_type
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