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生命活动是物质运动的最高形式,而思维活动则是生命活动的最高形式。DNA双螺旋结构是生命演化的一个伟大奇迹,人类的大脑是智力演化的又一伟大奇迹。恩格斯讲过,思维是地球上最美丽的花朵。“人类基因组计划”伟大工程的完成和深入发展完全改变了生命科学的面貌,它从根本上展示 相似文献
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Because of its clear genetic and developmental background, diversity of behavioral paradigms and neuroanatomy of the brain, Drosophila has become an important animal model for studying genetic, molecular and cellular bases of learning and memory[1]. Extensive research has explored the visual operant conditioning of Drosophila and related molecular bases[2—8]; recently, researchers began to address cognition-like functions and involved neural substrates[9—11]. In these studies, behavioral ana… 相似文献
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郭爱克 《生物化学与生物物理进展》1976,(2)
近年来,国际上控制论研究发展较快。最近,在罗马尼亚的布加勒斯特召开了第三届国际控制论和系统大会。大会有三个学术报告会:经济控制论和管理;系统理论;生物医学计算。大会还有七个分组讨论会:经济控制论系统和管理;系统与模型;工业控制论;控制论与环境;通讯、教育和信息处理;人工智能;神经和 相似文献
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In visual operant conditioning ofDrosophila 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 ofDrosophila. 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 “torque-position
map” method was used to explore the CS-US associative learning and choice behavior inDrosophila 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
ofDrosophila. 相似文献
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本文基于理论、实验和计算三大研究方法,遵循计算神经科学的认识路线,以蝇视觉系统为研究对象,通过建立简化的脑模型,探讨蝇视觉运动信息的神经计算原理。本文系统地综述了蝇初级运动检测器、图形-背景分辨系统的提出及其演化,介绍了图形-背景相对运动分辨的行为实验和相应的计算机仿真,给出了蝇视觉系统的模型及算法,并对有关问题进行了讨论。 相似文献
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3.蝇眼视觉运动计算模型的神经基础 在细胞水平上,蝇眼初级运动检测器得到了电生理记录实验的支持。同时,行为实验分析证实了存在两个平行的不同时空整合特性的控制系统——SF和LF系统。神经生理学的 相似文献
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