Distinct memory traces for two visual features in the Drosophila brain

被引:313
作者
Liu, G
Seiler, H
Wen, A
Zars, T
Ito, K
Wolf, R
Heisenberg, M
Liu, L
机构
[1] Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
[3] Theodor Boveri Inst Biowissensch, Lehrstuhl Genet & Neurobiol, D-97074 Wurzburg, Germany
[4] Univ Missouri, Div Biol Sci, Columbia, MO 65211 USA
[5] Univ Tokyo, Inst Mol & Cellular Biosci, Bunkyo Ku, Tokyo 1130032, Japan
关键词
D O I
10.1038/nature04381
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The fly Drosophila melanogaster can discriminate and remember visual landmarks. It analyses selected parts of its visual environment according to a small number of pattern parameters such as size, colour or contour orientation, and stores particular parameter values. Like humans, flies recognize patterns independently of the retinal position during acquisition of the pattern ( translation invariance). Here we show that the central-most part of the fly brain, the fan-shaped body, contains parts of a network mediating visual pattern recognition. We have identified short-term memory traces of two pattern parameters - elevation in the panorama and contour orientation. These can be localized to two groups of neurons extending branches as parallel, horizontal strata in the fan-shaped body. The central location of this memory store is well suited to mediate translational invariance.
引用
收藏
页码:551 / 556
页数:6
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