By Rüdiger Wehner (auth.), Rüdiger Wehner (eds.)
It is now as a rule authorised for quite a few purposes - morphological in addition to physiologica- that the visible structures of arthropods supply an appropriate version for the research of knowledge proces sing in neuronal networks. not like the neurophysiology of the visible pathway within the frog and the cat that's greater than appropriately documented, contemporary paintings at the compound eye and optical ganglia of spiders, crustaceans, and bugs has scarcely been summarized. with a view to fill this void in order that others, particularly vertebrate neurophysiologists may perhaps get to grips with the advan tages of those structures, our team at Zurich collage prepared the following in March 1972, a ecu assembly to debate the anatomical. ! neurophysiological and behavioral wisdom at the compound eye and the visible. pathway of arthropods. platforms research was once considered as the most subject of the convention, yet platforms research of a community of neurons can't be performed as an insignificant "black-box" maneuver. The convention accordingly attempted to reconcile neurophysiology and behavioral research which will make predictions a couple of valuable and enough neural constitution. The "wiring dia grams" of this kind of constitution may perhaps then be proven histologically. for that reason the purpose of the conferen ce used to be to not deal simply with the constitution and serve as of the compound eye - i. e.
Read or Download Information Processing in the Visual Systems of Anthropods: Symposium Held at the Department of Zoology, University of Zurich, March 6–9, 1972 PDF
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It really is now more often than not approved for numerous purposes - morphological in addition to physiologica- that the visible structures of arthropods offer an appropriate version for the learn of data proces sing in neuronal networks. in contrast to the neurophysiology of the visible pathway within the frog and the cat that is greater than properly documented, contemporary paintings at the compound eye and optical ganglia of spiders, crustaceans, and bugs has scarcely been summarized.
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Extra info for Information Processing in the Visual Systems of Anthropods: Symposium Held at the Department of Zoology, University of Zurich, March 6–9, 1972
Organization of retina of the mudpuppy, Necturus maculosus. I. Synaptic structure. Z. Neurophysiol. 32,315 - 338 (1969). V. : Ueber die Feinstruktur der motorischen Endplatte von hoheren Wirbeltieren. Z. Zellforsch. 81,74 - 90 (1967). : Das Augenmuskelsystem der Stubenfliege Musca domestica. I. Analyse der "Clock-Spikes und ihrer Quellen. Kybernetik 9, 56 - 77 (1971). : Nerve, Muscle and Synapse. McGraw-Hili Company. : The fine structure of neuromuscular junctions in the segmental muscles of the blowfly larva.
The second alternative could be decided upon, if we could find out whether ants must Iearn orientation by the polarization pattern; as yet we only know that ants (JANDER, 1957) and bees (LINDAUER, 1959) must learn compass orientation to the sun, whereas menotaxis is innate. 3. Changes in the fine structure of retinula cells caused by light and chromatic adaptation With appropriate electron-microscopic methods it is possible for us to analyse the dynamic processes in the retinula cells caused by light.
It is logical that the pigment movement takes place in the distal area of the rhabdom, for here the whole rhabdom is protected from too strong exposure. How is the movement of the pigment granules controlled? Firstly, the light absorbed by the visual pigments might regulate this mechanism, possibly by the excitation of the sense cells, a hypothesis which KIRSCHFELD and FRANCESCHINI derived from their observations of the Musca eye. g. a riboflavine) or the ommochrome of the pigmeni' granules (BUTENANDT, BIEKERT and LlNZEN, 1958; DUSTMANN, 1966; HOEGLUND, LANGE, STRUWE and THORELL, 1970) might activate the movement.