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Temporal properties of the lens eyes of the box jellyfish Tripedalia cystophora.

Author:
  • Megan O'Connor
  • Dan-E Nilsson
  • Anders Garm
Publishing year: 2010
Language: English
Pages: 213-220
Publication/Series: Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology
Volume: 196
Issue: 3
Document type: Journal article
Publisher: Springer

Abstract english

Box jellyfish (Cubomedusae) are visually orientating animals which posses a total of 24 eyes of 4 morphological types; 2 pigment cup eyes (pit eye and slit eye) and 2 lens eyes [upper lens-eye (ule) and lower lens-eye (lle)]. In this study, we use electroretinograms (ERGs) to explore temporal properties of the two lens eyes. We find that the ERG of both lens eyes are complex and using sinusoidal flicker stimuli we find that both lens eyes have slow temporal resolution. The average flicker fusion frequency (FFF) was found to be approximately 10 Hz for the ule and 8 Hz for the lle. Differences in the FFF and response patterns between the two lens eyes suggest that the ule and lle filter information differently in the temporal domain and thus are tuned to perform different visual tasks. The data collected in this study support the idea that the visual system of box jellyfish is a collection of special purpose eyes.

Keywords

  • Zoology

Other

Published
  • ISSN: 1432-1351
Dan-E Nilsson
E-mail: dan-e.nilsson [at] biol.lu.se

Professor

Functional zoology

+46 46 222 93 45

+46 70 623 10 64

B-B312

4

Research group

Lund Vision Group

Projects

Doctoral students and postdocs

Phd Students, main supervisor

Postdocs

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