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通过简单的感官刺激和认知表现在大脑内在连接网络中产生的调制的关系

Selen Gür Özmen¹, Emre Harı^2,3, Elif Kurt^3,4

¹Department of Physiotherapy and Rehabilitation, School of Health Sciences, Bahcesehir University, Istanbul, Türkiye.

Noro psikiyatri arsivi

|March 4, 2026

概括

简单的感官刺激,如闪的灯,可以检测早期的阿尔茨海默氏病大脑连接的变化. 这种fMRI方法显示为认知衰退的敏感生物标志物具有前途,可能有助于更早的诊断.

科学领域:

神经科学是一个神经科学.
医疗成像医学成像
认知科学认知科学

背景情况:

阿尔茨海默病连续性 (ADC) 涉及渐进性的认知衰退.
功能性连接网络对于大脑功能至关重要.
早期发现ADC对于及时干预至关重要.

研究的目的:

研究简单的感官刺激如何调节ADC中的大脑内在连接网络.
为了比较休息状态与ADC感官刺激中的fMRI数据.
为了确定早期认知衰退的潜在成像生物标志物.

主要方法:

分析了88名参与者在ADC频谱 (ADD,MCI,SCI) 的fMRI和神经心理学数据.
在静止状态和20 Hz闪光刺激期间获得的fMRI数据.
使用CONN软件进行的功能连接分析,使用Bonferroni校正.

主要成果:

休息状态fMRI显示,与主观认知障碍 (SCI) 和轻度认知障碍 (MCI) 相比,在阿尔茨海默病痴呆症 (ADD) 中,默认模式和突出网络的连接性下降.
与SCI相比,20 Hz闪的光刺激显示了MCI前侧双脚网络连接的增加,这种模式在静止状态数据中没有见过.
感官刺激fMRI识别了改变的连接模式,可能会被静止状态扫描遗漏.

结论:

在早期的ADC阶段,增加前端对象网络连接可能代表一个补偿机制.
使用简单感官刺激的fMRI似乎比静止状态fMRI对早期认知衰退更敏感.
感官刺激的fMRI具有作为早期阿尔茨海默病检测敏感生物标志物的潜力.

关键词:

阿尔茨海默氏症是阿尔茨海默氏症的一种疾病.功能性磁共振成像技术功能性磁共振成像技术内在连接网络的内在连接网络.轻度的认知障碍轻度的认知障碍主观认知障碍主观认知障碍

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