The organization of the accessory optic and pretectal circuits is surveyed in a variety of poikilotherms and the conclusion drawn that a common organizational pattern exists. This pattern consists of the presence of three optic pretectal nuclei located rostrocaudally in lateral-superficial, central and dorsomedial (or periventricular) positions. Furthermore, a well-defined basal optic tract and ventrolaterally placed terminal field at the level of the oculomotor nucleus appears to be a consistent feature among bony fish, amphibians and reptiles. The possible role of these circuits in visuomotor behaviors is discussed.
Katherine V. Fite, Ph.D., Division of Neuroscience and Behavior, University of Massachusetts, Amherst, MA 01003 (USA)
Number of Print Pages : 10
Brain, Behavior and Evolution
Vol. 26, No. 2, Year 1985 (Cover Date: 1985)
Journal Editor: Wilczynski W. (Atlanta, Ga.)
ISSN: 0006–8977 (Print), eISSN: 1421–9743 (Online)
For additional information: http://www.karger.com/BBE
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