Doreen Möckel Email: moeckel@bio.uni-frankfurt.de Research projectCellular mechanisms of active mechanical sound amplification in simple hearing organs Active mechanical amplification of low level sound guarantees exceptional hearing sensitivity and sharp frequency tuning in hearing organs. By-product and indicator of such mechanisms are otoacoustic emissions (OAEs). Tympanal organs of insects generate otoacoustic emissions whose characteristics correspond to those measured in vertebrates. My PhD project aims to determine the source of OAEs in tympanal organs. I want to use OAE- and electrophysiological recordings from different insect auditory organs to study cellular mechanisms of mechanical amplification. The contribution of single sensory cells to auditory amplification and generation of acoustic energy will be assessed by comparing species with very simple tympanal organs (Noctuoid moths) with species that have more complex ears (bush cricket, locusts). Because of their morphology, sensory cells in tympanal organs provide an easier accessibility of for manipulations than vertebrate ears. Sensory cells will be manipulated pharmacologically and mechanically to influence specific cellular components that could be involved in force generation in insect hearing organs. |
2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006 |
Möckel D, Kössl M and Nowotny M (2013) Mechanical two-tone-distortions in the tympanum motion of locusts. 10th Göttingen Meeting of the German Neuroscience Society: T17-3A. Möckel D, Kössl M and Nowotny M (2013) Mechanical two-tone-distortions in the movement of the tympanal membrane of insects. 36th Midwinter Meeting of the Association for Research in Otolaryngology: 166. |
Kössl M, Möckel D (2012) Measurement of sensitive distortion-product otoacoustic emissions in insect tympanal organs. J Exp Biol 215:566-567. (Correspondence to Moir et al. 2011, JEB 214:3165-3172) Möckel D, Kössl M, Lang J, Nowotny M (2012) Temperature dependence of distortion-product otoacoustic emissions in tympanal organs of locusts. J Exp Biol 215: 3309-3316. |
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Publications 2011
Möckel, D.; Lang, J.; Nowotny, M.; Seyfarth, E.-A.; Kössl, M. (2011) Temperature-dependence and procaine-induced changes of DPOAEs in insect ears. 13th International Meeting of Invertebrate Sound and Vibration. Möckel, D.; Seyfarth, E.-A.; Kössl, M. (2011) Otoacoustic emissions in bushcricket ears: General characteristics and the influence of the neuroactive insectizide pymetrozine. J Comp Physiol A 197: 193-202. |
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Publications 2010
Nowotny, M.; Hummel, J.; Weber, M.; Möckel, D.; Kössl, M. (2010):Acoustic-induced motion of the bushcricket (Mecopoda elongata, Tettigoniidae) tympanum. J Comp Physiol A 196: 939-945. |
Publications 2009
Nowotny, M. ; Möckel, D. ; Weber, M. ; Kössl, M. (2009): Sound induced vibration pattern on the tympanal membranes of the bushcricket Mecopoda elongata. 8th Göttingen Meeting of the German Neuroscience Society: T17-1C. Möckel, D.; Kössl, M. (2009) Pymetrozine and procaine affect the DPOAE-generation in tympanal organs of insects. 32nd Midwinter Meeting of the Association for Research in Otolaryngology: 351. |
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Publications 2008
Kössl, M. ; Möckel, D. ; Weber, M. ; Seyfarth, E.-A. (2008): Möckel, D. ; Seyfarth, E.-A. ; Kössl, M. (2008): Kössl, M.; Möckel, D.; Weber, M.; Seyfarth, E.-A. (2008): |
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Publications 2007
Möckel, D. ; Seyfarth, E.-A.; Kössl, M. (2007): Möckel, D. ; Seyfarth, E.-A. ; Kössl, M. (2007): Möckel, D. ; Kössl, M. ; Seyfarth, E.-A. (2007): |
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Publications 2006
Möckel, D. ; Seyfarth, E.-A. ; Kössl, M. (2006): |
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Arbeitskreis Neurobiologie und Biosensorik
Institut für Zellbiologie und Neurowissenschaft
Biologicum, Campus Riedberg
Gebäudeteil A, 3. Stock
Max-von-Laue-Str. 13
60438 Frankfurt am Main
T +49 69 798-42050
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