Telencephalic Projections to the Goldfish Hypothalamus: An Anterograde Degeneration Study
Document Type
Article
Publication Date
1-1-1988
Description
In this study, large areas of goldfish telencephalon were ablated including rostral nucleus preopticus periventriculare (rNPP), and degenerating axons were traced by a modified Fink and Heimer procedure. The lesioning procedure ablated large regions of area dorsalis telencephali pars medialis, centralis, and dorsolateral complex; and completely removed area ventralis telencephali pars dorsalis, ventralis, and lateralis. In addition, the supracommissural nucleus and rNPP were lesioned specifically because both nuclei have been thought to be involved in courtship behavior and endocrine control of reproduction. This investigation demonstrated extensive fiber projections from telencephalic nuclei and/or rNPP to the hypothalamus. Lesioned telencephalon and/or rNPP projected bilaterally to nucleus preopticus and the suprachiasmatic nucleus and unilaterally to the following tuberal nuclei: nucleus anterior tuberis, and the lateral hypothalamic nucleus. A much larger fiber projection to the inferior lobe nuclei was also observed with a large contralateral as well as ipsilateral input.
Citation Information
Airhart, Mark J.; Shirk, James O.; and Kriebel, Richard M.. 1988. Telencephalic Projections to the Goldfish Hypothalamus: An Anterograde Degeneration Study. Brain Research Bulletin. Vol.20(4). 503-514. https://doi.org/10.1016/0361-9230(88)90141-4 PMID: 2456137 ISSN: 0361-9230