Help Privacy Policy Disclaimer
  Advanced SearchBrowse




Journal Article

Odour intensity learning in fruit flies


Yarali,  A.
Max Planck Research Group: Behavioral Genetics / Tanimoto, MPI of Neurobiology, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Yarali, A., Ehser, S., Hapil, F. Z., Huang, J., & Gerber, B. (2009). Odour intensity learning in fruit flies. Proceedings of the Royal Society B-Biological Sciences, 276(1672), 3413-3420.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0012-2036-2
Animals' behaviour towards odours depends on both odour quality and odour intensity. While neuronal coding of odour quality is fairly well studied, how odour intensity is treated by olfactory systems is less clear. Here we study odour intensity processing at the behavioural level, using the fruit fly Drosophila melanogaster. We trained flies by pairing a MEDIUM intensity of an odour with electric shock, and then, at a following test phase, measured flies' conditioned avoidance of either this previously trained MEDIUM intensity or a LOWer or a HIGHer intensity. With respect to 3-octanol, n-amylacetate and 4-methylcyclohexanol, we found that conditioned avoidance is strongest when training and test intensities match, speaking for intensity-specific memories. With respect to a fourth odour, benzaldehyde, on the other hand, we found no such intensity specificity. These results form the basis for further studies of odour intensity processing at the behavioural, neuronal and molecular level.