相关实验视频
Updated: May 13, 2025
10:42
A Free-breathing fMRI Method to Study Human Olfactory Function
Published on: July 30, 2017
9.5K
狗的嗅觉休息状态功能连接是由年龄和大脑形状调节的
Asami Nakaimuki1,2,3, Bernadett Paska4, Laura V Cuaya4,5
1Department of Ethology, Institute of Biology, Eötvös Loránd University, Budapest, Hungary. av3acsca0amrioi@gmail.com.
Scientific reports
|April 15, 2025
概括
年长的狗和大脑较圆的狗具有较弱的嗅觉功能连接. 这项研究探讨了狗的嗅觉如何受到年龄和大脑形状的影响,揭示了对气味表现的潜在影响.
科学领域:
- 神经科学是一个神经科学.
- 动物行为 动物行为
- 相对的嗅觉能力比较
背景情况:
- 狗的嗅觉被广泛使用,但其功能性大脑网络尚未得到充分理解.
- 之前的研究已在解剖学上绘制了嗅觉大脑区域的地图,使功能连接性未被探索.
- 年龄,性别和大脑形状等个体因素会影响嗅觉表现,但它们与功能网络的联系尚不清楚.
研究的目的:
- 为了研究狗的嗅觉大脑区域内的休息状态功能连接.
- 为了确定年龄,性别和大脑形状对狗嗅觉功能网络的影响.
主要方法:
- 在狗中利用了休息状态功能连接性分析.
- 检查了嗅觉功能连接与包括年龄,性别和大脑形状在内的因素之间的相关性.
主要成果:
- 嗅觉功能连接强度与年龄负相关.
- 在嗅觉功能连接和圆脑形状之间观察到负相关性.
- 没有发现性别对嗅觉功能连接有显著影响.
结论:
- 老龄化和大脑形态对狗的嗅觉有负面影响.
- 年长的狗和大脑较圆的狗可能表现出嗅觉能力下降.
- 功能连接提供了对狗嗅觉神经基础的洞察.
更多相关视频
07:59Training Dogs for Awake, Unrestrained Functional Magnetic Resonance Imaging
Published on: October 13, 2019
7.4K
09:01A Method for Investigating Age-related Differences in the Functional Connectivity of Cognitive Control Networks Associated with Dimensional Change Card Sort Performance
Published on: May 7, 2014
10.1K
相关概念视频
01:25Olfaction
44.0K
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...
44.0K
01:03Olfactory Receptors: Location and Structure
8.6K
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...
8.6K