使用功能性磁共振成像来检测与微观活动相关的大脑活动之间的差异,在自愿和非自愿的阻断器收缩之间
Nhi T Ha1, Aidin Abedi2, Luis Alejandro Morales Ojeda1,3,4
1Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.
Neurourology and urodynamics
|December 31, 2024
概括
自发性体收缩在运动和感觉区域显示出较大的大脑活动,而非自发性体收缩与冲动性尿失禁有关. 这突出了膀控制神经激活的差异.
科学领域:
- 神经科学是一个神经科学.
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 功能性磁共振成像 (fMRI) 是一种功能性磁共振成像技术.
背景情况:
- 排尿器收缩是自愿的或非自愿的,非自愿的收缩是冲动性尿失禁的特征.
- 了解神经活化差异可以揭示下尿路症状的病理生理学和治疗点.
研究的目的:
- 为了比较脑活动 (大胆信号fMRI) 在自愿和非自愿的肌肉缩在中风幸存者与下尿路症状.
主要方法:
- 在27名中风幸存者中,同时使用尿动力学和BOLD信号的fMRI在四个填充周期中进行.
- 收缩被分类为自愿的 (在空白指令的10秒内) 或非自愿的.
- 脑活动在收缩阶段 (早期,上升,高原,秋季) 进行分析,并使用特定的统计值.
主要成果:
- 与所有阶段的自愿性缩相比,非自愿性缩显示大脑活动减少.
- 在早期阶段,感官和自主区域的差异最为明显,后来转移到运动控制区域.
结论:
- 意志的收缩比非自愿的收缩更能激发运动,感觉和执行功能的大脑区域.
- 研究结果表明,自愿性收缩涉及更高层次的处理,而非自愿性收缩可能是由皮层下反射驱动的.
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