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Two Visual Systems in One Brain

  • Friedrich G. Barth
Chapter

Abstract

Although so far we know very little about visually controlled behavior of Cupiennius (see Chapter XXIII), the capabilities of the eyes (see Chapter XI) provide the foundation for a well-developed sense of vision and we might well expect the animals to exploit this potential. Our expectation is strengthened when we look at the size and structure of the centers in the brain that receive input from the eyes and process this visual information. The situation is quite different from that in insects: in spiders the actual brain is almost completely devoted to vision, receiving only the optic nerves and containing only the optic ganglia and some association centers. A few years ago we examined the anatomy of these ganglia and discovered a number of interesting things (Babu and Barth 1984, 1989; Weltzien and Barth 1991; Strausfeld and Barth 1993; Strausfeld et al. 1993).

Keywords

Output Neuron Central Body Mushroom Body Kenyon Cell Lobula Plate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Friedrich G. Barth
    • 1
  1. 1.Institut für Zoologie BiozentrumUniversität WienWienÖsterreich

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