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Dopamine-Mushroom Body Circuit Regulates Saliency-Based Decision-Making in Drosophila
Ke Zhang,1,2
Jian Zeng Guo,1
Yueqing Peng,1,2
Wang Xi,1,2
Aike Guo1,3*
Abstract:Drosophila melanogaster can make appropriate choices among alternativeflight options on the basis of the relative salience of competingvisual cues. We show that this choice behavior consists of earlyand late phases; the former requires activation of the dopaminergicsystem and mushroom bodies, whereas the latter is independentof these activities. Immunohistological analysis showed thatmushroom bodies are densely innervated by dopaminergic axons.Thus, the circuit from the dopamine system to mushroom bodiesis crucial for choice behavior in Drosophila.
1 Institute of Neuroscience, Key Laboratory of Neurobiology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences (CAS), 320 Yueyang Road, Shanghai 200031, China. 2 Graduate School of Chinese Academy of Sciences, Beijing 100049, China. 3 State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, CAS, 15 Datun Road, Chaoyang District, Beijing 100101, China.
* To whom correspondence should be addressed. E-mail: akguo{at}ion.ac.cn
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