PMID: 8459271Feb 1, 1993Paper

Neural circuit tuning fly visual neurons to motion of small objects. II. Input organization of inhibitory circuit elements revealed by electrophysiological and optical recording techniques

Journal of Neurophysiology
M EgelhaafA Wildemann

Abstract

1. The FD1-cell in the visual system of the fly is an identified visual interneuron that is specifically tuned to motion of small objects. In the companion paper it was shown that this response property is mediated by one of the two CH-cells, the VCH-cell, that inhibits the FD1-cell by GABAergic synapses. Here the input organization of the two CH-cells is analyzed by both electrophysiological and optical recording techniques. 2. Both CH-cells are excited by front-to-back motion in the ipsilateral and by back-to-front motion in the contralateral visual field. They respond maximally to binocular rotatory motion about the vertical axis of the animal. The latter response is only slightly less than the sum of the corresponding monocular response components. The relative contribution of the ipsi-and contralateral eye to the binocular response varies considerably between flies. In extreme cases it is dominated by either the ipsi- or the contralateral eye. The two CH-cells are not equally sensitive along the vertical axis of the eye. The DCH-cell has its sensitivity maximum in the dorsal part, the VCH-cell in the ventral part of the visual field. 3. The CH-cells have two arborizations, a large one in the posterior part of the third vis...Continue Reading

Citations

May 2, 1998·Journal of Neurophysiology·R M Glantz
Feb 13, 2001·Journal of Neurophysiology·H G KrappM Egelhaaf
Mar 17, 2010·Annual Review of Neuroscience·Alexander BorstDierk F Reiff
Dec 15, 2004·Biological cybernetics·Charles M Higgins, Vivek Pant
Dec 13, 2005·Journal of Neurophysiology·Peter Neri
Oct 14, 2014·Frontiers in Behavioral Neuroscience·Daniel Kress, Martin Egelhaaf
Jul 11, 2000·The European Journal of Neuroscience·W HorstmannA K Warzecha
Dec 30, 2009·The Journal of Experimental Biology·R RosnerA-K Warzecha
Nov 8, 2013·The Journal of Experimental Biology·Jessica L FoxMark A Frye
May 4, 2010·The Journal of Experimental Biology·Hao FeiDavid E Krantz
Feb 13, 2001·Progress in Neurobiology·C M Comer, R M Robertson
Apr 1, 1993·Comparative Biochemistry and Physiology. Comparative Physiology·M Egelhaaf, A Borst
Jun 1, 1994·Trends in Neurosciences·A Borst, M Egelhaaf
Jun 1, 1994·Current Opinion in Neurobiology·W G Regehr, D W Tank

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