Asymmetry in the left and right habenulo-interpeduncular tracts in the frog

Brain Research Bulletin
V Gugliemotti, L Fiorino

Abstract

In the frog Rana esculenta the left dorsal habenula includes a lateral and a medial component, whereas the right dorsal habenula is only represented by one nucleus. The efferents of the habenular nuclei to the interpeduncular nucleus were herein investigated with the retrograde horseradish peroxidase tracing. Injections of cobaltic-lysine complex in the interpeduncular nucleus were also performed. Intensely labeled fibers of the fasciculus retroflexus on the right and left sides of the brain were found to reach the interpeduncular nucleus from the habenular nuclei running prevalently in two routes--one through the medial, and the other through the lateral region of the diencephalon. On the right side, these fibers originated from the entire dorsal habenula. On the left side, the fibers of the medial route derived from the medial habenular subnucleus, while those of the lateral route derived from the lateral habenular subnucleus. In the dorsal habenulae of both sides, a large number of neurons displayed a Golgi-like labeling, while few such cells were detected in the ventral habenulae. Labeled neurons in the right dorsal habenula resembled those labeled in the lateral subnucleus of the left dorsal habenula, while larger and rami...Continue Reading

References

Nov 15, 1977·The Journal of Comparative Neurology·M Kemali, V Guglielmotti
Sep 1, 1979·The Journal of Comparative Neurology·M Herkenham, W J Nauta
May 1, 1979·Stain Technology·V Guglielmotti
Jan 1, 1992·Brain, Behavior and Evolution·C Díaz, L Puelles
Jan 1, 1992·Brain, Behavior and Evolution·C Díaz, L Puelles
Mar 1, 1985·The Journal of Comparative Neurology·M Kemali, G Làzàr
Mar 1, 1986·Stain Technology·V Guglielmotti
Feb 1, 1970·The Journal of Comparative Neurology·V Braitenberg, M Kemali
Feb 1, 1968·The Journal of Comparative Neurology·K Akagi, E W Powell
Feb 1, 1980·Experimental Brain Research·M KemaliD Gioffré
Mar 20, 1983·The Journal of Comparative Neurology·G LázárE Kicliter
Jan 1, 1996·Neuroscience and Biobehavioral Reviews·J A HarrisM Bentivoglio
Sep 1, 1958·Brain : a Journal of Neurology·W J NAUTA

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Citations

Mar 29, 2001·Physiology & Behavior·L H GargaglioniA Hoffmann
Aug 29, 2001·Journal of Anatomy·M L Concha, S W Wilson
Dec 10, 2008·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Isaac H Bianco, Stephen W Wilson
Jun 27, 2007·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Yung-Shu KuanMarnie E Halpern
May 4, 2012·Developmental Neurobiology·Myriam RoussigneStephen W Wilson
Apr 3, 2020·Physiological Reviews·Onur GüntürkünSebastian Ocklenburg

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