Document Detail


Form vision in the insect dorsal ocelli: an anatomical and optical analysis of the Locust Ocelli.
MedLine Citation:
PMID:  17349667     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The dorsal ocelli are commonly considered to be incapable of form vision, primarily due to underfocused dioptrics. We investigate the extent to which this is true of the ocelli of the locust Locusta migratoria. Locust ocelli contain thick lenses with a pronounced concavity on the inner surface, and a deep clear zone separating retina and lens. In agreement with previous research, locust ocellar lenses were found to be decidedly underfocused with respect to the retina. Nevertheless, the image formed at the level of the retina contains substantial information that may be extractable by individual photoreceptors. Contrary to the classical view it is concluded that some capacity for resolution is present in the locust ocelli.
Authors:
Richard P Berry; Eric J Warrant; Gert Stange
Related Documents :
6734687 - Effects of presentation format on adult's retention of television programs.
3206067 - International cooperation in rabies research.
7233107 - Planning for a schizophrenia research program: a prototype.
14974587 - Critically assessing the radiology literature.
8063637 - Comments on functional analysis procedures for school-based behavior problems.
20042117 - Translating research into policy: lessons learned from eclampsia treatment and malaria ...
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2007-03-08
Journal Detail:
Title:  Vision research     Volume:  47     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-04-16     Completed Date:  2007-06-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  1382-93     Citation Subset:  IM    
Affiliation:
Centre for Visual Sciences, Research School of Biological Sciences, Australian National University, Canberra, Australia. rberry@rsbs.anu.edu.au
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Animals
Fixation, Ocular / physiology
Form Perception / physiology*
Lens, Crystalline / anatomy & histology,  physiology*
Locusta migratoria / anatomy & histology,  physiology*
Models, Biological
Photoreceptor Cells, Invertebrate / physiology
Retina / anatomy & histology,  physiology
Visual Acuity / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  The geomagnetic field influences the sensitivity of our eyes.
Next Document:  Co-treatment of hydrogen sulfide and methanol in a single-stage biotrickling filter under acidic con...