PMID: 7536400Jan 1, 1995Paper

The efferent connections of the nucleus accumbens in the lizard Gekko gecko. A combined tract-tracing/transmitter-immunohistochemical study

Anatomy and Embryology
W J Smeets, L Medina

Abstract

The present investigation of connections in the basal ganglia of the lizard Gekko gecko has revealed that the efferent projections of the nucleus accumbens are far more elaborate than previously thought. The projections reach not only the ventral pallidum, the preoptic area, the lateral hypothalamic area and the ventral tegmental area, but also the bed nucleus of the stria terminalis, the dorsomedial thalamic nucleus, the substantia nigra and the retrorubral dopaminergic cell group. Additional projections were observed within the nucleus accumbens and, caudally, to the peribrachial region and the superior raphe nucleus. Moreover, the results of the present study indicate that the accumbal projections to both the ventral pallidum and midbrain dopaminergic cell groups have a medial-to-lateral topographical organization. This expanded view of the efferent projections of the nucleus accumbens of Gekko gecko suggests a great resemblance in accumbal output systems between reptiles and mammals. A notable difference, however, is observed in the "limbic loop", which in reptiles, in contrast to mammals, seems to lack a cortical involvement.

Citations

Sep 8, 2005·Brain Research Bulletin·Alino Martinez-MarcosMimi Halpern
Apr 12, 2005·Journal of Chemical Neuroanatomy·Alino Martinez-MarcosMimi Halpern
Sep 30, 2000·Brain Research. Brain Research Reviews·W J Smeets, A González
Dec 22, 1998·Brain Research. Brain Research Reviews·A ReinerC L Veenman
Jul 8, 1998·Progress in Neurobiology·O MarínA González
Mar 30, 2002·Brain Research Bulletin·Fernando Martínez-GarcíaEnrique Lanuza
Oct 30, 2014·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Victoria HuangDavid Crews
Oct 30, 2010·The Journal of Comparative Neurology·Nerea MorenoAgustín González
Oct 1, 2004·The Journal of Comparative Neurology·Amparo NovejarqueFernando Martínez-García
Apr 20, 2007·Developmental Neurobiology·Eun-Jin Yang, Walter Wilczynski
Mar 6, 2010·Annals of the New York Academy of Sciences·Heath D Schmidt, R Christopher Pierce
Jul 30, 2011·The Journal of Comparative Neurology·Lauren A O'Connell, Hans A Hofmann
Jun 16, 2011·The Journal of Comparative Neurology·Nerea MorenoAgustín González

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