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  Odour intensity learning in fruit flies

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.

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 Creators:
Yarali, A.1, Author           
Ehser, S.2, Author
Hapil, F. Z.2, Author
Huang, J.2, Author
Gerber, B.2, Author
Affiliations:
1Max Planck Research Group: Behavioral Genetics / Tanimoto, MPI of Neurobiology, Max Planck Society, ou_1113555              
2[Ehser, Sabrina; Hapil, Fatma Zehra; Huang, Ju; Gerber, Bertram] Univ Würzburg, Biozentrum, D-97070 Würzburg, Germany.; [Hapil, Fatma Zehra] Bilkent Univ, Dept Mol Biol & Genet, Bilkent, Turkey.; [Huang, Ju] Chinese Acad Sci, Inst Neurosci, Beijing 100864, Peoples R China., ou_persistent22              

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Free keywords: fruit fly; olfaction; odour intensity; associative learning; recognition; benzaldehyde
 Abstract: 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.

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Language(s): eng - English
 Dates: 2009-10-07
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 435899
ISI: 000269241300004
 Degree: -

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Title: Proceedings of the Royal Society B-Biological Sciences
  Alternative Title : Proc. R. Soc. B-Biol. Sci.
Source Genre: Journal
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Pages: - Volume / Issue: 276 (1672) Sequence Number: - Start / End Page: 3413 - 3420 Identifier: ISSN: 0962-8452