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Sense or Non-sense? Decision making in Drosophila melanogaster

MPG-Autoren
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Ahsan,  Jawaid
Department of Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society;

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Knaden,  Markus
Research Group Dr. M. Knaden, Insect Behavior, Department of Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society;

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Strutz,  Antonia
Department of Evolutionary Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society;

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Sachse,  Silke
Department of Evolutionary Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society;

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Hansson,  Bill S.
Department of Evolutionary Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society;

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Zitation

Ahsan, J., Knaden, M., Strutz, A., Sachse, S., & Hansson, B. S. (2017). Sense or Non-sense? Decision making in Drosophila melanogaster. Mechanisms of Development, 145, S115-S116. doi:10.1016/j.mod.2017.04.311.


Zusammenfassung
Brains have to decide whether and how to respond to detected stimuli based on complex sensory input. The vinegar fly Drosophila melanogaster evaluates food sources based on olfactory cues. Here, we performed a behavioral screen using the vinegar fly and established the innate valence of 110 odorants. Our analysis of neuronal activation patterns evoked by attractive and aversive odorants suggests that even though the identity of odorants is coded by theset of activated receptors, the main representation of odorant valence is formed at the output level of the antennal lobe. The topographic clustering within the antennal lobe of valence-specific output neurons resembles a corresponding domain in the olfactory bulb of mice. The basal anatomical structure of the olfactory circuit between insects and vertebrates is known to be similar; our study suggests that the representation of odorant valence is as well.