图 书 馆
动态突触延迟补偿Delay Compensation with Dynamical Synapses |
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| 课程网址: | https://videolectures.net/videos/machine_fung_delay |
| 主讲教师: | C. C. Alan Fung |
| 开课单位: | 信息不详。欢迎您在右侧留言补充。 |
| 开课时间: | 2013-01-11 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Time delay is pervasive in neural information processing. To achieve real-time tracking, it is critical to compensate the transmission and processing delays in a neural system. In the present study we show that dynamical synapses with short-term depression can enhance the mobility of a continuous attractor network to the extent that the system tracks time-varying stimuli in a timely manner. The state of the network can either track the instantaneous position of a moving stimulus perfectly (with zero-lag) or lead it with an effectively constant time, in agreement with experiments on the head-direction systems in rodents. The parameter regions for delayed, perfect and anticipative tracking correspond to network states that are static, ready-to-move and spontaneously moving, respectively, demonstrating the strong correlation between tracking performance and the intrinsic dynamics of the network. We also find that when the speed of the stimulus coincides with the natural speed of the network state, the delay becomes effectively independent of the stimulus amplitude. |
| 关 键 词: | 时间延迟; 动态突触; 连续吸引子网络 |
| 课程来源: | vidiolectures |
| 数据采集: | 2025-02-25：yuhongrui |
| 最后编审: | 2025-02-25：yuhongrui |
| 阅读次数: | 1 |