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| Name |
Anne-Kathrin Warzecha |
| Date of birth |
March 18th 1965 |
| Nationality |
German |
| Marital Status |
married, four children |
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on part time since November 2000 |
| Room No |
W4 - 133 |
| Phone |
+ 49.521.106-5578 |
| Mail |
ak.warzecha@uni-bielefeld.de |
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| 2000 |
Habilitation in "Animal Physiology", Bielefeld University Germany
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| 1991-1994 |
Doctoral-Thesis: "Reliability of neuronal information processing in the motion pathway of the blowflies Calliphora erythrocephala and Lucilia cuprina at the Max-Planck-Institut für biol. Kybernetik, financed by grants of the German Scholarship Foundation (Studienstiftung des Deutschen Volkes) and the Max-Planck-Society
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| 1990 -1991 |
Diplom-Thesis: "Konnektivitätsanalyse zum neuronalen Mechanismus der Detektion bewegter Objekte im visuellen System der Fliege" at the Max-Planck-Institut für biol. Kybernetik, Tübingen, Germany
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| 1987-1988 |
Studies of Zoology and Neurobiology at the Duke University in Durham, NC, USA, with financial support of the DAAD (German Academic Exchange Service)
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| 1986-1991 |
Studies of Biology (main subjects: Animal physiology, botany, mathematics, electronics) at the University of Tübingen, Germany
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| 1984-1986 |
Studies of Biology at the Johannes-Gutenberg University in Mainz, Germany
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start. April
2004 |
Group Leader of a VW research group that will be jointly situated at the Institut of Psychology II (Westfälische Wilhelms Universität Münster) and the Dept. of Neurobiology (Bielefeld University)
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| since Jan. 2002 |
Oberassistentin (C2), Neurobiology Department at Bielefeld University
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| since Oct. 1995 |
Wissenschaftliche Assistentin (C1), Neurobiology Department at Bielefeld University
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| 1995 (Jan.-Oct.) |
Postdoctoral Fellow: Centre for Visual Sciences, Research School of Biological Sciences,Australian National University, Canberra (Australia) |
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The goal of my current research is to investigate how noise at the various processing stages of the visual motion pathway constrains the performance of the entire system. My current research topics with respect to the fly are summarised on the www-page Reliability of neural coding. I will investigate the reliability of encoding of visual motion information also in humans starting in April 2004 with a project financed by the VolkswagenStiftung. A summary of the entire project will soon be available.
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| Original papers |
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Rosner R., Egelhaaf M., Warzecha A.-K. Behavioural state affects motion-sensitive neurones in the fly visual system. J. Exp. Biol. 213, 331-338, doi:10.1242/jeb.035386 (2010).
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Boström KJ, Warzecha A.-K. Open-loop speed discrimination performance of ocular following response and perception. Vis. Res. 50: 870 - 882 (2010).
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Boström KJ , Warzecha A.-K. Ocular following response to sampled motion. Vis. Res. 49: 1693-1701 (2009).
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Rosner R., Egelhaaf M., Grewe J., Warzecha A.-K. Variability of blowfly head optomotor responses. J. Exp. Biol. 212, 1170 - 1184 (2009).
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Grewe J., Weckström M., Egelhaaf M., Warzecha A.-K. Information and discriminability as measures of reliability of sensory coding. PLoS ONE, 2(12):e1328 (2007).
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Grewe J., Matos N., Egelhaaf M., Warzecha A.-K. Implications of functionally different synaptic inputs for neuronal gain and computational properties of fly visual interneurons. J Neurophysiol 2006 Oct.; 96 (4): 1838-47 (2006).
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Egelhaaf M., Grewe J., Karmeier K., Kern R., Kurtz R., Warzecha A.-K.. Novel approaches to visual processing in insects: Case studies on neuronal computations in the blowfly. In: Methods in insect sensory neuroscience. (Ed. Christensen T.A.), pp. 185-212. CRC Press, Boca Raton, London, New York (2004).
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Egelhaaf M.,Kern R., Kurtz R., Warzecha A.-K.. Fly: processing of visual motion information and ist role in visual orientation. In: Encyclopedia of Neurosci. (Eds Adelman G., Smith B.H.), Elsevier (2004).
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Egelhaaf M.,Kern R., Kurtz R., Warzecha A.-K.. In the cockpit of the fly. German Research Special 2004. 28-31. (2004)
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Grewe, J.; J. Kretzberg, A.-K. Warzecha, M. Egelhaaf. Impact of photon noise on the reliability of a motion-sensitive neuron in the fly’s visual system. J. Neurosci 23: 10776-10783 (2003)
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Kretzberg, J., A.-K. Warzecha, T. Sejnowski, M. Egelhaaf: Variability of postsynaptic responses depends non-linearly on the number of synaptic inputs. Neurocomputing 52-54: 313-320 (2003)
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A.-K. Warzecha, R. Kurtz, M. Egelhaaf: Synaptic transfer of dynamical motion information between identified neurons in the visual system of the blowfly. Neuroscience 119: 1103-1112 (2003)
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Egelhaaf,M., J. Grewe, R. Kern & A.-K. Warzecha. Outdoor performance of a motion-sensitive neuron in the blowfly. Vision Research 41: 3627-3637 (2001)
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Kurtz, R., A.-K. Warzecha, M. Egelhaaf: Graded synaptic transmission of visual motion information operates linearly under natural input conditions. J Neurosci 21: 6957-6966 (2001)
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Kretzberg, J., A.-K. Warzecha, M. Egelhaaf: Neural coding with spikes and graded potential changes. J. Comput. Neurosci. 11: 153-164 (2001)
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Kretzberg, J., M. Egelhaaf, A.-K. Warzecha: Membrane potential fluctuations determine the precision of spike timing and synchronous activity: A model study. J. Comput. Neurosci. 10: 79-97 (2001)
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Warzecha A.-K., J. Kretzberg, M. Egelhaaf: Reliability of a fly motion-sensitive neuron depends on stimulus parameters. J. Neurosci. 20, 8886-8896 (2000)
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Warzecha, A.-K., M. Egelhaaf: Response latency of a fly motion-sensitive neuron in the fly visual system: Dependence on stimulus parameters and physiological conditions. Vis. Res. 40: 2973-2983 (2000)
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Horstmann, W., M. Egelhaaf, A.-K. Warzecha: Synaptic interactions increase optic flow specificity. Europ. J. Neurosci. 12 2157-2165 (2000)
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Warzecha A.-K., W. Horstmann, M. Egelhaaf: Increasing temperature within behavioural operating range extends dynamic range of identified motion sensitive neuron in the blowfly Calliphora erythrocephala. J. Exp. Biol. 202, 3161-3170 (1999)
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Warzecha, A.-K., M. Egelhaaf: Variability in spike trains during constant and dynamic stimulation Science (1999)
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Warzecha, A.-K., J. Kretzberg, M. Egelhaaf: Temporal precision of the encoding of motion information by visual interneurons. Curr. Biol. 8, 359-368 (1998)
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Warzecha, A.-K., M. Egelhaaf: On the performance of biological movement detectors and ideal velocity sensors in optomotor course stabilization. Vis.Neurosci. 15, 113-122 (1998)
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Kimmerle, B., A.-K. Warzecha, M. Egelhaaf: Object detection in the fly during simulated translatory flight. J. Comp. Physiol. A 181, 247-255 (1997)
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Warzecha, A.-K., M. Egelhaaf: How reliably does a neuron in the visual motion pathway of the fly encode behaviourally relevant information? Europ. J. Neurosci. 9, 1365-1374 (1997)
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Warzecha, A.-K., M. Egelhaaf: Intrinsic properties of biological motion detectors prevent the optomotor control system from getting unstable.
Phil. Trans. R. Soc. Lond. B 351, 1579-1591 (1996)
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Warzecha, A.-K., M. Egelhaaf: Visual pattern discrimination in a butterfly: A behavioural study on the Australian lurcher, Yoma sabina. Naturwissenschaften 82, 567-570 (1995)
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Egelhaaf, M., A. Borst, A.-K. Warzecha, S. Flecks, A. Wildemann: Neural circuit tuning fly visual interneurons to motion of small objects II: Input organization of inhibitory circuit elements revealed by electrophysiological and optical recording techniques. J. Neurophysiol. 69, 340-351 (1993)
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Warzecha, A.-K., M. Egelhaaf and A. Borst: Neural circuit tuning fly visual interneurons to motion of small objects I: Dissection of the circuit by pharmacological and photoinactivation techniques. J. Neurophysiol. 69, 329-339 (1993)
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Warzecha, A.-K., A. Borst, M. Egelhaaf: Photoablation of single neurons in the fly visual system reveals neural circuit for the detection of small moving objects. Neurosci. Lett. 141, 119-122 (1992)
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Zanker, J.M., M. Egelhaaf and A.-K. Warzecha: On the coordination of the motor output during visual flight control of flies. J. Comp. Physiol. A 169, 127-134 (1991)
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Review
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Egelhaaf, M., Böddeker, R. Kern, J.Kretzberg, R. Kurtz, J.P. Lindemann, A.-K. Warzecha: Visually guided orientation in flies: case studies in computational neuroethology. J Comp Physiol A: 401-409 (2003)
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Egelhaaf, M., R. Kern, R. Kurtz, A.-K. Warzecha: In the cockpit of the fly. German research – Magazine of the Deutsche Forschungsgemeinschaft 1: 10-13 (2003) |
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Egelhaaf, M, R. Kern, R. Kurtz, A.-K. Warzecha: Fly, processing of visual motion information and its role in visual orientation. In Encyclopedia of Neuroscience, Adelmann, G., Smith, B.H. (Eds.), Elsevier, Amsterdam (in press).
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Egelhaaf, M, R. Kern, H.G. Krapp, J. Kretzberg, R. Kurtz, A.-K. Warzecha: Neural encoding of behaviourally relevant visual input. Trends Neursoci. 25: 96-102 (2002)
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Warzecha, A.-K., M. Egelhaaf : Neural encoding of visual motion in real-time. In: Motion Vision: Computational, neural, and ecological constraints. (Eds: J.M. Zanker, J. Zeil) Springer Verlag, Berlin, S. 239-277 (2001)
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Egelhaaf, M., A.-K. Warzecha: Encoding of motion in real time by the fly visual system. Curr. Opinion Neurobiol. 9: 454-460 (1999)
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Egelhaaf, M., R. Kern, A.-K. Warzecha: Sensory ecology and neural coding in arthropods. Z. Naturf. 53: 582-592 (1998)
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Egelhaaf, M., R. Kern, A.-K. Warzecha: Ein Blick ins Cockpit der Fliege: Wie steuern neuronale Schaltkreise visuelles Orientierungsverhalten?
Neuroforum 2: 204-212 (1998)
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