神经血管合功能障碍与 Presbycusis 的认知障碍相关
Chunhua Xing1, Jianhua Feng2, Jun Yao1
1Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China.
Brain communications
|July 4, 2024
概括
神经血管合,对于大脑功能至关重要,在老年听 (与年龄相关的听力损失) 中受损,影响认知. 区域分析揭示了与认知衰退相关的特定脑电路功能障碍.
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.
- 医疗成像医学成像
背景情况:
- 听力衰竭 (与年龄相关的听力损失) 的神经病理学是不太了解的.
- 认知障碍是常见的伴随性疾病中presbycusis患者.
- 神经血管合链接大脑活动和血液流动,对认知功能至关重要.
研究的目的:
- 调查神经血管合机制与 Presbycusis 的认知障碍相关.
- 为了比较presbycusis患者和健康对照者之间的全球和区域神经血管合.
- 分析改变的神经血管合和认知表现之间的关系.
主要方法:
- 使用大脑血流和BOLD衍生的定量图 (ALFF,fALFF,ReHo,DC) 之间的相关系数评估神经血管合.
- 计算了四个神经血管合指标:CBF-ALFF,CBF-fALFF,CBF-ReHo和CBF-DC.
- 在全球和区域范围内比较了长和对照组之间的指标,并与神经心理学尺度相关联.
主要成果:
- 全球神经血管合与对照组相比,大脑缩组显著减少,与认知水平相关.
- 区域分析显示三个大脑区域的显著升高和一个下降,所有这些都在帕佩兹电路内.
- 区域神经血管合提供了比全球措施更详细的见解.
结论:
- 神经血管合在长中受损,导致认知缺陷.
- 帕佩兹电路神经血管合中的功能障碍与与年龄有关的听力损失的认知和情绪障碍有关.
相关概念视频
Auditory Pathway
5.4K
Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
5.4K
Language and Cognition
340
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
340
Neural Regulation
39.3K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
39.3K
Local Anesthetics: Differential Sensitivity of Nerve Fibers
807
Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
807


