Regional Specialization for Control of Ocular Movements in the Compound Eyes of a Stomatopod Crustacean

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dc.contributor.authorCronin, Thomas W.
dc.contributor.authorYan, Hong Y.
dc.contributor.authorBidle, Kay D.
dc.date.accessioned2019-05-23T16:47:45Z
dc.date.available2019-05-23T16:47:45Z
dc.date.issued1992
dc.description.abstract1. Regional specialization within the triple compound eyes of the gonodactyloid stomatopod Gonodactylus oerstedii (Hansen) was studied by examining how ocular tracking of a small target was affected after occluding vision in particular ommatidial regions with black enamel paint. 2. Complete occlusion of one eye did not prevent the other eye from tracking, indicating that the two eyes act somewhat independently. However, following such treatment, the angular extent over which the seeing eye moved while tracking was reduced. 3. An eye was able to continue tracking a moving target even after occlusion of the anterior tip or after painting over all of its posterior surface except the anterior tip (restricting the visual field to a patch about 40° in diameter). Similarly, occlusion of only the midband, the medial half or the lateral half of an eye did not prevent tracking. 4. Tracking was also possible, although with decreased amplitude, when either the dorsal or the ventral hemisphere was occluded. However, when both the dorsal and ventral hemispheres were occluded, leaving only the midband for vision, the ability of an eye to track was abolished. 5. A computer model was used to investigate whether the midband alone had the potential to direct tracking in our experiments. The model's output predicts that, in spite of its restricted field of view, if the midband is oriented within 20° of the horizontal, an eye could track using the midband alone. Conditions favoring such potential tracking occurred in our experiments, but neither tracking nor targetting movements were observed. 6. We conclude that ommatidia of the dorsal and ventral hemispheres of each compound eye are essential for ocular tracking in G. oerstedii. The midband appears to play no major role in this activity.en_US
dc.description.sponsorshipThis material is based on research supported by the National Science Foundation under grants BNS-8518769 and BNS-8917183. Some of the work reported in this paper was presented at the annual meeting of the Association for Research in Vision and Ophthalmology in 198en_US
dc.description.urihttp://jeb.biologists.org/content/171/1/373en_US
dc.format.extent22 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2c9cl-smjx
dc.identifier.citationThomas W. Cronin, et.al, Regional Specialization for Control of Ocular Movements in the Compound Eyes of a Stomatopod Crustacean, Journal of Experimental Biology 1992 171: 373-393, http://jeb.biologists.org/content/171/1/373en_US
dc.identifier.urihttp://hdl.handle.net/11603/13931
dc.language.isoen_USen_US
dc.publisherCompany of Biologistsen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Biological Sciences Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.subjectvisionen_US
dc.subjectocular trackingen_US
dc.subjectvisual pursuiten_US
dc.subjecteye movementsen_US
dc.subjectommatidiaen_US
dc.subjectcrustaceansen_US
dc.subjectstomatopodsen_US
dc.subjectGonodactylus oerstediien_US
dc.titleRegional Specialization for Control of Ocular Movements in the Compound Eyes of a Stomatopod Crustaceanen_US
dc.typeTexten_US

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