图 书 馆
大脑中可疑的巧合Suspicious Coincidences in the Brain |
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| 课程网址: | http://videolectures.net/nips2012_sejnowski_brain/ |
| 主讲教师: | Terrence J. Sejnowski |
| 开课单位: | 索尔克生物研究所 |
| 开课时间: | 2013-01-16 |
| 课程语种: | 英语 |
| 中文简介: |  大脑需要以最小的能源成本快速了解大量不明确的信息，并且已经发展出一种有趣的模拟和数字机制混合以提高效率。神经元内部的模拟电和生化信号用于整合其他神经元的突触输入。数字部分是所有动作电位或无动作电位或尖峰，持续一毫秒或更短的时间，用于长距离发送消息。当神经元几乎同时发射时，会发生尖峰巧合。在本讲座中，我将展示如何有效地使用罕见的尖峰巧合来表示重要的视觉事件，以及如何使用模拟VLSI技术实现该体系结构以简化视觉处理的早期阶段。 |
| 课程简介: | Brains need to make quick sense of massive amounts of ambiguous information with minimal energy costs and have evolved an intriguing mixture of analog and digital mechanisms to allow this efficiency. Analog electrical and biochemical signals inside neurons are used for integrating synaptic inputs from other neurons. The digital part is the all-or-none action potential, or spike, that lasts for a millisecond or less and is used to send messages over a long distance. Spike coincidences occur when neurons fire together at nearly the same time. In this lecture I will show how rare spike coincidences can be used efficiently to represent important visual events and how this architecture can be implemented with analog VLSI technology to simplify the early stages of visual processing. |
| 关 键 词: | 动作电位; 大脑信息处理 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2020-11-08：zyk |
| 最后编审: | 2020-11-08：zyk |
| 阅读次数: | 40 |