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Vol. 26, No. 2, 1985
Issue release date: 1985
Brain Behav Evol 1985;26:71–80
A Survey of Vertebrate Pretectal Areas and the Accessory Optic System

Pretectal and Accessory-Optic Visual Nuclei of Fish, Amphibia and Reptiles: Theme and Variations (Part 1 of 2)

Fite K.V.
Division of Neuroscience and Behavior, University of Massachusetts, Amherst, Mass., USA


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.

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Katherine V. Fite, Ph.D., Division of Neuroscience and Behavior, University of Massachusetts, Amherst, MA 01003 (USA)

 goto top of outline Article Information

Number of Print Pages : 10

 goto top of outline Publication Details

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)

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