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相关概念视频

Olfaction01:25

Olfaction

44.2K
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...
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Physiology of Smell and Olfactory Pathway01:20

Physiology of Smell and Olfactory Pathway

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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...
8.0K
Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

8.7K
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...
8.7K

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相关实验视频

Updated: Jun 5, 2025

Author Spotlight: Exploring Olfactory Influences on Corticospinal Excitability - Insights and Innovations in Neurological Research
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Published on: January 19, 2024

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嗅觉神经反:当前状态和进一步发展的可能性.

Ivan Ninenko1,2, Alexandra Medvedeva3, Victoria L Efimova4

  • 1Institute for Cognitive Neuroscience, HSE University, Moscow, Russia.

Frontiers in human neuroscience
|December 16, 2024
PubMed
概括

嗅觉神经反 (O-NFB) 将气味集成到脑电脑接口 (BCI) 中,用于神经康复和消费者应用. 这种方法利用嗅觉刺激和脑电图 (EEG) 来增强大脑可塑性和认知处理.

关键词:
这就是BCI的意义.这是一个EEGEEGEEGEEGEEGEEGEEG.在 NFB 找 NFB嗅觉 嗅觉是一种嗅觉.嗅觉加工 嗅觉加工

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科学领域:

  • 神经科学是一个神经科学.
  • 生物医学工程 生物医学工程
  • 人与计算机的交互

背景情况:

  • 大脑计算机接口 (BCI) 提供了新的治疗和辅助技术.
  • 嗅觉神经反 (O-NFB) 是一种使用嗅觉刺激的新兴BCI范式.
  • 电脑电图 (EEG) 是O-NFB系统中监测大脑活动的一个关键模式.

研究的目的:

  • 在BCI控制循环中探索嗅觉刺激的整合.
  • 研究基于EEG的O-NFB在神经康复和消费者应用中的潜力.
  • 检查使用EEG和α节律作为O-NFB的控制变量.

主要方法:

  • 开发一种基于嗅觉的指导延迟任务.
  • 探测EEG和α节律作为O-NFB的控制变量.
  • 讨论O-NFB实施策略,包括嗅觉显示器和EEG特征.

主要成果:

  • 脑电图西塔和阿尔法节奏显示了O-NFB的控制变量潜力.
  • 嗅觉刺激可以有效地集成到BCI控制环.
  • 与呼吸节律的同步对于优化O-NFB至关重要.

结论:

  • 对于医疗应用,O-NFB具有显著的前景,特别是在神经系统疾病康复中.
  • 嗅觉的独特特性可以在BCI中利用,以促进大脑的可塑性.
  • 预计O-NFB系统将推进临床实践和基础神经科学研究.