在神经形态的嗅觉回路中,快速的在线学习和强大的回忆
Nabil Imam1, Thomas A Cleland2
1Neuromorphic Computing Laboratory, Intel Corporation, San Francisco, CA 94111, USA.
Nature machine intelligence
|April 23, 2024
概括
这项研究引入了一种新的神经算法,用于快速识别气味,模仿大脑的嗅觉灯泡. 它允许快速,一次性学习和可靠的气味识别,即使有显著的噪音干扰.
科学领域:
- 计算神经科学是一种神经科学.
- 人工智能的人工智能
- 神经形态工程的神经形态工程
背景情况:
- 哺乳动物的嗅觉系统在快速识别气味方面表现出色,尽管环境杂.
- 现有的算法经常在实时学习和干扰下强大的性能方面扎.
研究的目的:
- 开发一种神经算法,用于快速在线学习和识别气味样本.
- 在一个神经形态系统上实现这个算法,灵感来自哺乳动物的嗅觉球.
- 在噪音条件下展示强大的气味识别,并探索终身学习能力.
主要方法:
- 一个基于尖峰时间的神经算法,利用分布式,事件驱动的计算.
- 在Intel Loihi神经形态系统上实现.
- 一次性在线学习与高峰时刻依赖的可塑性超过马频率包.
- 在风洞中使用化学传感器阵列来获取气味数据.
主要成果:
- 尽管存在强烈的破坏性干扰,但可靠地识别学会的气味剂.
- 通过神经调制和上下文启动增强抗噪能力.
- 展示终身学习能力,灵感来自成年人的神经发生.
结论:
- 开发的神经算法有效地模仿生物嗅觉,以快速识别气味.
- 该算法显示出显著的抗噪能力和终身学习潜力.
- 这种方法广泛适用于噪音背景中的高维信号的信号识别问题.
相关概念视频
Olfactory Receptors: Location and Structure
9.2K
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
9.2K
Physiology of Smell and Olfactory Pathway
8.4K
Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
The olfactory...
8.4K
Olfaction
44.3K
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
The olfactory receptors are embedded in the cilia of the...
44.3K
Neural Circuits
1.2K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.2K


