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  Optical properties of the ocelli of Calliphora erythrocephala and their role in the dorsal light response

Schuppe, H., & Hengstenberg, R. (1993). Optical properties of the ocelli of Calliphora erythrocephala and their role in the dorsal light response. Journal of Comparative Physiology A, 173(2), 143-149. doi:10.1007/BF00192973.pdf.

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 Urheber:
Schuppe, H1, 2, Autor           
Hengstenberg, R2, 3, Autor           
Affiliations:
1Former Department Information Processing in Insects, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497801              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              
3Former Department Neurophysiology of Insect Behavior, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497802              

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 Zusammenfassung: The 3 ocelli of the blowfly Calliphora erythrocephala, grouped close together on the top of the head (Fig. 1), have large, extensively overlapping visual fields. Together they view the entire upper hemisphere of the surroundings plus part of the lower hemisphere (Figs. 5, 7). It is shown for the lateral ocelli that despite the underfocussing of the ocellar lens large patterns are imaged on the receptor mosaic. Because of the astigmatism of the lens, patterns in longitudinal orientations are more accurately represented than in others (Fig. 3). Nevertheless, an artifical horizon rotated around the long axis of the animal does not elicit head roll. Likewise, changes of overall brightness in the visual field of the median and one lateral ocellus elicit only weak phasic-tonic “dorsal light responses” of the animal which supplement the tonic dorsal light responses mediated by the compound eyes (Figs. 9, 10). Our results show that, in Calliphora, the ocelli have little influence on head orientation during flight, and must be assumed to serve other functions.

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 Datum: 1993-08
 Publikationsstatus: Erschienen
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 Identifikatoren: BibTex Citekey: 1298
DOI: 10.1007/BF00192973.pdf
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Titel: Journal of Comparative Physiology A
  Andere : J. Comp. Physiol. A -Neuroethol. Sens. Neural Behav. Physiol.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Heidelberg : Springer Verlag
Seiten: - Band / Heft: 173 (2) Artikelnummer: - Start- / Endseite: 143 - 149 Identifikator: ISSN: 0340-7594
CoNE: https://pure.mpg.de/cone/journals/resource/954925519626