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Prof. Dr. Uwe Homberg  

Philipps-Universität Marburg, Fachbereich Biologie, Tierphysiologie,

Karl-von-Frisch-Straße 8, 35032 Marburg

Phone: +49 6421 – 2823402, Fax: +49 6421 – 2828941

Email: homberg@biologie.uni-marburg.de

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Uwe Homberg


Research focus
Anatomical, neurochemical, and functional analysis of the insect brain; neural mechanisms and pathways underlying polarization vision, sky compass orientation and spatial navigation in model insects (desert locust, honeybee); organization of the insect circadian clock (locust, cockroach); comparative analysis of the distribution of neurotransmitters and neuropeptides in insect brains. 

Techniques

-    Intracellular and extracellular recordings from insect brain neurons in situ, visual stimulation techniques, data analysis

-    Single-cell dye injections, fluorescent tracer applications

-    Immunocytochemistry of neurotransmitters, neuropeptides, synapse-related molecules on brain sections and whole mounts

-    Scanning confocal laser microscopy (brain sections, whole mounts)

-    MALDI-TOF mass spectrometry of neuropeptides

-    3D-reconstruction of insect brains, neuropils and single neurons

-    Various behavioral assays to study visual orientation and navigation of insects

 

Publications (10 selected Publications since 2007)


1. el Jundi B, Homberg U (2012) Receptive field properties and intensity-response functions of polarization-sensitive neurons of the optic tubercle in gregarious and solitarious locusts. J Neurophysiol 108:1695-1710

2. Hamanaka Y, Kinoshita M, Homberg U, Arikawa K (2012) Immunocytochemical localization of amines and GABA in the optic lobe of the butterfly, Papilio xuthus. PLoS one 7:e41109.

3. Homberg U, Heinze S, Pfeiffer K, Kinoshita M, el Jundi B (2011) Central neural coding of sky polarization in insects. Phil Trans R Soc London B 366:680-687.

4. Träger U, Homberg U (2011) Polarization-sensitive descending neurons in the locust: connecting the brain to thoracic ganglia. J Neurosci 31:2238-2247.

5. el Jundi B, Heinze S, Lenschow C, Kurylas A, Rohlfing T, Homberg U (2010) The locust standard brain: a 3D standard of the central complex as a platform for neural network analysis. Front Syst Neurosci 3:21. doi:10.3389/neuro.06.021.2009.

6. Heinze S, Gotthardt S, Homberg U (2009) Transformation of polarized light information in the central complex of the locust. J Neurosci 29:11783-11793.

7. Heinze S, Homberg U (2008) Neuroarchitecture of the central complex of the desert locust: Intrinsic and columnar neurons. J Comp Neurol 511:454-478.

8. Träger U, Wagner R, Bausenwein B, Homberg U (2008) A novel type of microglomerular synaptic complex in the polarization vision pathway of the locust brain. J Comp Neurol 506:288-300.

9. Pfeiffer K, Homberg U (2007) Coding of azimuthal directions via time-compensated combination of celestial compass cues. Curr Biol 17:960-965.

10. Heinze S, Homberg U (2007) Maplike representation of celestial E-vector orientations in the brain of an insect. Science 315:995-997.

Zuletzt aktualisiert: 03.05.2013 · Busses

 
 
 
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