Form vision in the insect dorsal ocelli: An anatomical and optical analysis of the Locust Ocelli
Författare
Summary, in English
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.
Avdelning/ar
Publiceringsår
2007
Språk
Engelska
Sidor
1382-1393
Publikation/Tidskrift/Serie
Vision Research
Volym
47
Issue
10
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Zoology
Nyckelord
- optics
- insect
- three-dimensional
- ocelli
- acuity
Status
Published
Forskningsgrupp
- Lund Vision Group
ISBN/ISSN/Övrigt
- ISSN: 1878-5646