与年龄相关的听力衰退和休息状态网络
Cassidy Teuscher Ellsworth1,2, Lucas A Kortus2, Joanne Vuong2
1Department of Special Education and Communication Disorders, University of Nebraska-Lincoln.
American journal of audiology
|September 9, 2025
概括
与年龄相关的听力下降会影响大脑功能网络,老年人显示连接能力较弱. 保持听觉敏感性与更好的局部大脑网络效率和认知功能有关.
科学领域:
- 神经科学是一个神经科学.
- 听力学 听力学是指听力学.
背景情况:
- 与年龄相关的听力损失是一种常见的感官障碍.
- 了解它的神经基础对于开发干预措施至关重要.
研究的目的:
- 研究年龄和听力衰退对大脑功能网络的影响.
- 通过使用图形理论来检查静态功能连接 (RSFC) 和网络效率.
主要方法:
- 49名成年人接受了纯色声度测试和静止状态功能磁共振成像 (rs-fMRI).
- 在听觉和注意力网络中分析了RSFC和图形理论指标.
- 在年龄和听力特征组之间进行了比较.
主要成果:
- 与中年人相比,老年人在突出网络中表现出较弱的RSFC.
- 没有听力下降的个体显示了互联网网络连接的改变.
- 在正常听力参与者中观察到突出网络中的更好的局部效率.
结论:
- 大脑的功能连接和网络效率受到年龄和听力值的影响.
- rs-fMRI对于研究与年龄相关的听力损失的神经机制非常有价值.
相关概念视频
01:15Resting Potential Decay
The resting membrane potential of a neuron (-70mV) is sustained due to the selective ion permeability of the membrane. At the resting potential, the membrane is slightly permeable to ions like sodium (Na+) and chloride (Cl−) and highly permeable to potassium ions (K+). Differences in the ions' concentration inside the cell compared to the outside are maintained by membrane transport proteins like channels and pumps.
At rest, the K+ is the main ion that moves across the membrane through...
At rest, the K+ is the main ion that moves across the membrane through...
01:15Resting Potential Decay
The resting membrane potential of a neuron (-70mV) is sustained due to the selective ion permeability of the membrane. At the resting potential, the membrane is slightly permeable to ions like sodium (Na+) and chloride (Cl−) and highly permeable to potassium ions (K+). Differences in the ions' concentration inside the cell compared to the outside are maintained by membrane transport proteins like channels and pumps.
At rest, the K+ is the main ion that moves across the membrane through...
At rest, the K+ is the main ion that moves across the membrane through...