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A Free-breathing fMRI Method to Study Human Olfactory Function
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使用犬的嗅觉搜索人类遗骸的研究进展
Wei Fang1, Ji-Long Zheng1, Yi-Ming Fu1
1Criminal Investigation Police University of China, Shenyang 110048, China.
Fa yi xue za zhi
|August 21, 2024
概括
狗的嗅觉搜索有效地使用气味检测定位埋葬的人类遗骸. 本综述探讨了在法医调查中使用狗来定位遗骸的原则,训练方法和未来前景.
科学领域:
- 法医科学 法医科学 法医科学
- 动物行为 动物行为
- 生物化学 生化学
背景情况:
- 抛弃和埋葬人类遗骸的准确位置在谋杀调查中至关重要.
- 存在各种方法,但犬的嗅觉搜索提供了一种有效的时间和非侵入性的方法.
- 由于它们敏的嗅觉,在法医调查中,狗是非常有价值的搜索工具.
研究的目的:
- 探索人类遗骸的狗嗅觉搜索的基本原则.
- 审查训练犬搜索技术在法医调查中的应用.
- 预测狗嗅觉搜索人类遗骸的未来应用.
主要方法:
- 系统审查和总结相关的科学文献.
- 基于人类分解过程中产生的挥发性有机化合物 (VOC) 理论的分析.
- 审查使用各种气味来源 (如血液,组织和气味替代品) 的训练方法.
主要成果:
- 狗的嗅觉搜索利用检测分解过程中排放的挥发性有机化合物 (VOC).
- 培训协议涉及多种不同的气味来源,包括人类生物材料和合成气味剂.
- 这种技术在各种法医场景中被证明是有效的.
结论:
- 狗的嗅觉搜索是一种科学验证和实用的方法,用于定位人类遗骸.
- 未来的进步在于VOC检测,改进的气味替代品和改进的训练策略.
- 本综述为推进法医科学中狗嗅觉搜索研究提供了一个参考.
相关概念视频
Olfaction
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...
Physiology of Smell and Olfactory Pathway
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...

