Behavioral modification in choice process of Drosophila  

作　　者：王顺鹏 唐世明 李岩 郭爱克 

机构地区：[1]Laboratory of VisualInformation Processing, Centerfor Brainand Cognitive Sciences, Institute of Biophysics, Chinese Academy of Sciences [2]Instituteof Neuroscience, ShanghaiInstitutesfor Biological Sciences, Chinese Academy of Sciences, Shanghai200031, ChinaCorrespondenceshould

出　　处：《Science China(Life Sciences)》2003年第4期399-413,共16页中国科学（生命科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.39770187&69835020);the Multidisciplinary Research Program of Chinese Academy of Sciences;the Major State Basic Research Program(G2000077800).

摘　　要：In visual operant conditioning of Drosophila at the flight simulator, only motor output of flies——yaw torque——is recorded, which is involved in the conditioning process. The current study used a newly-designed data analysis method to study the torque distribution of Drosophila. Modification of torque distribution represents the effects of operant conditioning on flies?behavioral mode. Earlier works[10] showed that, when facing contradictory visual cues, flies could make choices based upon the relative weightiness of different cues, and it was demonstrated that mushroom bodies might play an important role in such choice behavior. The new 搕orque-position map?method was used to explore the CS-US associative learning and choice behavior in Drosophila from the aspect of its behavioral mode. Finally, this work also discussed various possible neural bases involved in visual associative learning, choice processing and modification processing of the behavioral mode in the visual operant conditioning of Drosophila.In visual operant conditioning of Drosophila at the flight simulator, only motor output of flies——yaw torque——is recorded, which is involved in the conditioning process. The current study used a newly-designed data analysis method to study the torque distribution of Drosophila. Modification of torque distribution represents the effects of operant conditioning on flies?behavioral mode. Earlier works[10] showed that, when facing contradictory visual cues, flies could make choices based upon the relative weightiness of different cues, and it was demonstrated that mushroom bodies might play an important role in such choice behavior. The new 搕orque-position map?method was used to explore the CS-US associative learning and choice behavior in Drosophila from the aspect of its behavioral mode. Finally, this work also discussed various possible neural bases involved in visual associative learning, choice processing and modification processing of the behavioral mode in the visual operant conditioning of Drosophila.

关 键 词：visual OPERANT conditioning  CHOICE behavior  torque distribution  MUSHROOM bodies. 

分 类 号：Q42[生物学—神经生物学]