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Title: Experience improves feature extraction in Drosophila
Author: Peng, Yueqing ; Xi, Wang ; Zhang, Wei ; Zhang, Ke ; Guo, Aike
Source: JOURNAL OF NEUROSCIENCE
Issued Date: 2007
Volume: 27, Issue:19, Pages:5139-5145
Keyword: learning and memory ; Drosophila ; mushroom body ; visual feature ; experience-dependent behavior ; flight simulator ; VISUAL FLIGHT ORIENTATION ; MUSHROOM BODIES ; COLOR-VISION ; YAW TORQUE ; MELANOGASTER ; INSECT ; MEMORY ; DISCRIMINATION ; BEHAVIOR ; BRAIN
Subject: Neurosciences & Neurology
Corresponding Author: Guo, AK (reprint author), Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Neurosci, Key Lab Neurobiol, Shanghai 200031, Peoples R China,akguo@ion.ac.cn
English Abstract: Previous exposure to a pattern in the visual scene can enhance subsequent recognition of that pattern in many species from honeybees to humans. However, whether previous experience with a visual feature of an object, such as color or shape, can also facilitate later recognition of that particular feature from multiple visual features is largely unknown. Visual feature extraction is the ability to select the key component from multiple visual features. Using a visual flight simulator, we designed a novel protocol for visual feature extraction to investigate the effects of previous experience on visual reinforcement learning in Drosophila. We found that, after conditioning with a visual feature of objects among combinatorial shape-color features, wild-type flies exhibited poor ability to extract the correct visual feature. However, the ability for visual feature extraction was greatly enhanced in flies trained previously with that visual feature alone. Moreover, we demonstrated that flies might possess the ability to extract the abstract category of "shape" but not a particular shape. Finally, this experience-dependent feature extraction is absent in flies with defective MBs, one of the central brain structures in Drosophila. Our results indicate that previous experience can enhance visual feature extraction in Drosophila and that MBs are required for this experience-dependent visual cognition.
Indexed Type: sci
Language: 英语
Content Type: 期刊论文
URI: http://ir.sibs.ac.cn/handle/331001/1772
Appears in Collections:神经所(总)_期刊论文

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Peng, Yueqing; Xi, Wang; Zhang, Wei; Zhang, Ke; Guo, Aike.Experience improves feature extraction in Drosophila,JOURNAL OF NEUROSCIENCE,2007,27(19):5139-5145
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