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Title: Odour intensity learning in fruit flies
Author: Yarali, Ayse ; Ehser, Sabrina ; Hapil, Fatma Zehra ; Huang, Ju ; Gerber, Bertram
Source: PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
Issued Date: 2009
Volume: 276, Issue:1672, Pages:3413-3420
Keyword: fruit fly ; olfaction ; odour intensity ; associative learning ; recognition ; benzaldehyde ; DROSOPHILA ANTENNAL LOBE ; MUSHROOM BODY ; OLFACTORY SYSTEM ; GENE-EXPRESSION ; GAL4 SYSTEM ; DISCRIMINATION ; COMPUTATION ; INFORMATION ; RECEPTORS ; HONEYBEES
Subject: Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology
Corresponding Author: Yarali, A (reprint author), Max Planck Inst Neurobiol, Klopferspitz 18, D-82152 Martinsried, Germany,yarali@neuro.mpg.de
English 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.
Indexed Type: sci
Language: 英语
Content Type: 期刊论文
URI: http://ir.sibs.ac.cn/handle/331001/1635
Appears in Collections:神经所(总)_期刊论文

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Yarali, Ayse; Ehser, Sabrina; Hapil, Fatma Zehra; Huang, Ju; Gerber, Bertram.Odour intensity learning in fruit flies,PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2009,276(1672):3413-3420
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