How outcome expectations organize learned behaviour in larval Drosophila
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1
University of Leipzig, Institute of Biology, Germany
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2
University of Würzburg, Department of Neurobiology and Genetics, Germany
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3
Université de Fribourg, Switzerland
Drosophila larvae combine a numerically simple brain, a correspondingly moderate behavioural complexity and the availability of a rich toolbox for transgenic manipulation. This makes them attractive as a study case when trying to achieve a circuit-level understanding of behaviour organization. From a series of behavioural experiments, we here suggest a circuitry of chemosensory processing, odour-tastant memory trace formation and the ‘decision’ process to behaviourally express these memory traces- or not. The model incorporates statements about the neuronal organization of innate versus conditioned chemosensory behaviour, and the kinds of interaction between olfactory and gustatory pathways during the establishment and behavioural expression of odour-tastant memory traces. It in particular suggests that innate olfactory behaviour is responsive in nature, whereas conditioned olfactory behaviour is captured better when seen as an action in pursuit of its outcome. It incorporates the available neuroanatomical and behavioural data and thus should be useful as scaffold for the ongoing investigations of the chemo-behavioural system in larval Drosophila.
References
Scherer S, Stocker RF, Gerber B. 2003. Olfactory learning in individually assayed Drosophila larvae. Learn Mem 10: 217-225.
Gerber B, Hendel T. 2006. Outcome expectations drive learned behaviour in larval Drosophila. Proc R Soc B 273: 2965-2968.
Gerber B, Stocker RF. 2007. The Drosophila larva as a model for studying chemosensation and chemosensory learning: a review. Chem Senses 32: 65-89.
Schleyer M, Saumweber T, Nahrendorf W, Fischer B, von Alpen D, Pauls D, Thum A, Gerber B. In press. A behaviour-based circuit-model of how outcome expectations organize learned behavior in larval drosophila. Learn Mem.
Keywords:
decision-making,
Drosophila,
Learning and plasticity,
memory retrieval,
Outcome expectation
Conference:
BC11 : Computational Neuroscience & Neurotechnology Bernstein Conference & Neurex Annual Meeting 2011, Freiburg, Germany, 4 Oct - 6 Oct, 2011.
Presentation Type:
Poster
Topic:
learning and plasticity (please use "learning and plasticity" as keyword)
Citation:
Schleyer
M,
Saumweber
T,
Nahrendorf
W,
Fischer
B,
Von Alpen
D,
Pauls
D,
Thum
AS and
Gerber
B
(2011). How outcome expectations organize learned behaviour in larval Drosophila.
Front. Comput. Neurosci.
Conference Abstract:
BC11 : Computational Neuroscience & Neurotechnology Bernstein Conference & Neurex Annual Meeting 2011.
doi: 10.3389/conf.fncom.2011.53.00212
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Received:
17 Aug 2011;
Published Online:
04 Oct 2011.
*
Correspondence:
Mr. Michael Schleyer, University of Leipzig, Institute of Biology, Leipzig, 04103, Germany, michael.schleyer@uni-leipzig.de