Multisensory control of eye-stalk orientation in space: crabs from different 
habitats rely on different senses

Nalbach, H-O; Zeil , J; Forzin, L

doi:10.1007/BF00610996

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Multisensory control of eye-stalk orientation in space: crabs from different habitats rely on different senses

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Nalbach, H-O
Max Planck Institute for Biological Cybernetics, Max Planck Society;
Former Department Neurophysiology of Insect Behavior, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Nalbach, H.-O., Zeil, J., & Forzin, L. (1989). Multisensory control of eye-stalk orientation in space: crabs from different habitats rely on different senses. Journal of Comparative Physiology A, 165(5), 643-649. doi:10.1007/BF00610996.

Cite as: https://hdl.handle.net/21.11116/0000-0006-752A-8

Abstract

1.

We recorded compensatory eye stalk movements in response to pitch and roll stimulation of the visual, statocyst, and leg-proprioceptive systems in different species of crabs (Carcinus maenas, Heloecius cordiformis, Pachygrapsus marmoratus) (Fig. 2).
2.

The relative contribution of visual, statocyst and leg-proprioceptive inputs to eye stabilization in space varies greatly among different species (Fig. 3).
3.

We suggest that for stabilizing the eyes in space, the contribution of various sensory inputs in different species of crabs correspond to the availability of cues in their habitat. Semiterrestrial crabs living in a habitat with well defined and predictable visual geometry stabilize their eye stalks mainly by visual cues. Crabs living on solid substrate make strong use of leg proprioceptive input. Swimming crabs, and other predominantly aquatic crabs, rely mainly on their statocysts.