Abstract
How can odor-guided behavior of numerous individual Drosophila be assessed automatically with high temporal resolution? For this purpose we introduce the automatic integrated tracking and odor-delivery system Flywalk. In fifteen aligned small wind tunnels individual flies are exposed to repeated odor pulses, well defined in concentration and timing. The flies' positions are visually tracked, which allows quantification of the odor-evoked walking behavior with high temporal resolution of up to 100 ms. As a demonstration of Flywalk we show that the flies' behavior is odorant-specific; attractive odors elicit directed upwind movements, while repellent odors evoke decreased activity, followed by downwind movements. These changes in behavior differ between sexes. Furthermore our findings show that flies can evaluate the sex of a conspecific and males can determine a female's mating status based on olfactory cues. Consequently, Flywalk allows automatic screening of individual flies for their olfactory preference and sensitivity.
Highlights
Kathrin Steck1, Daniel Veit1, Ronald Grandy1, Sergi Bermudez i
The original version of this Article contained a typographical error in the spelling of the author Sergi Bermudez i Badia which was incorrectly given as Sergi Bermdez i Badia
The affiliation for Paul Verschure and Zenon Mathews was incorrectly given as, Institute of Audio-Visual Studies, University Pompeu Fabra, Barcelona, Spain rather than, Laboratory of Synthetic Perceptive, Emotive and Cognitive Systems, ICREA-UPF, Barcelona, Spain. Both these errors have been corrected in the Article
Summary
Kathrin Steck1, Daniel Veit1, Ronald Grandy1, Sergi Bermudez i.
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