QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by MESSENGER, J. B. Search for Related Content PubMed PubMed Citation Articles by MESSENGER, J. B.

Journal of Experimental Biology 53,789-796 (1970)
Published by Company of Biologists 1970

Optomotor Responses and Nystagmus in Intact, Blinded and Statocystless Cuttlefish (Sepia Officinalis L.)

J. B. MESSENGER ¹

¹ Department of Zoology, University of Sheffield and Stazione Zoologica Naples

1. Evidence is reviewed confirming that the eyes of Sepia move under the influence of gravity, angular acceleration and visual receptors.

2. Visual nystagmus and optomotor responses are described in free-swimming Sepia; these survive bilateral destruction of the statocysts, though they are abolished by blinding.

3. Post-rotatory nystagmus is shown by intact animals in a plain background; in bilaterally blinded animals there are post-rotatory movements of the head. These responses disappear if the statocysts are removed.

4. The post-rotatory nystagmus of intact animals is almost completely suppressed by visual cues.

5. Other effects of blinding and statocyst removal are described.