动物导航中的嗅觉线索和记忆
Thierry Emonet1,2,3, Massimo Vergassola4,5
1Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT 06520.
概括
动物使用复杂的嗅觉导航策略来找到方向. 研究探讨了嗅觉如何引导动物的运动和空间定向.
科学领域:
- 嗅觉神经科学是一种神经科学.
- 动物行为 动物行为
- 生物物理学的生物物理.
背景情况:
- 动物的导航对于生存和繁殖至关重要.
- 嗅觉线索对许多物种如何在环境中定位起着重要作用.
- 了解基于气味导航的机制,可以提供有关感官处理和决策的见解.
研究的目的:
- 审查目前关于动物如何利用气味进行导航的研究.
- 讨论基于嗅觉引导运动的计算原理.
- 突出嗅觉导航领域的关键发现和开放问题.
主要方法:
- 审查有关动物嗅觉和导航的现有科学文献.
- 对描述气味跟踪和气味羽毛动态的理论模型的分析.
- 来自各种动物模型的实验证据的合成.
主要成果:
- 动物可以检测到气味剂的微小度梯度,以确定方向.
- 复杂的行为,如造和逆风飞行被用来追踪气味的踪迹.
- 大脑将嗅觉信息与其他感官输入进行集成,以实现可靠的导航.
结论:
- 动物的嗅觉导航是一个复杂的过程,涉及复杂的感官感知和神经计算.
- 需要进一步的研究来充分阐明控制基于气味的定向的神经回路和算法.
- 了解这些机制可能会在机器人和环境监测方面有应用.
相关概念视频
Physiology of Smell and Olfactory Pathway
8.2K
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...
8.2K
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
Olfactory Receptors: Location and Structure
9.1K
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...
9.1K


