Guo, AK (reprint author), Chinese Acad Sci, Inst Biophys, Ctr Brain & Cognit Sci, Lab Visual Informat Proc, Beijing 100101, Peoples R China,
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() 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 "torque-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.