Learning channels. Cellular physiology of odor processing neurons within the honeybee brain |
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Authors: | Grünewald B Wersing Anna Wüstenberg D G |
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Institution: | Institut für Biologie, Neurobiologie, Freie Universit?t Berlin, K?nigin-Luise-Str. 28-30, D-14195 Berlin, Germany. gruenewa@neurobiologie.fu-berlin.de |
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Abstract: | To understand the cellular mechanisms of olfactory learning in the honeybee brain we study the physiology of identified neurons within the olfactory pathway. Here, we review data on the voltage-sensitive and ligand-gated ionic currents of mushroom body Kenyon cells and antennal lobe neurons in vitro and in situ. Both cell types generate action potentials in vitro, but have different voltage-sensitive K+ currents. They express nicotinic acetylcholine receptors and ionotropic GABA receptors, representing the major transmitter systems in the insect olfactory system. Our data are interpreted with respect to learning-dependent plasticity in the honeybee brain. |
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