相关实验视频

Updated: Jul 16, 2025

Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network

Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network

Published on: December 28, 2010

冥想减弱了默认模式活动:使用超高场7特斯拉MRI的试点研究

Saampras Ganesan¹, Bradford A Moffat², Nicholas T Van Dam³

¹Melbourne Neuropsychiatry Centre, Carlton, Victoria 3053, Australia; Department of Biomedical Engineering, The University of Melbourne, Carlton, Victoria 3053, Australia; Contemplative Studies Centre, Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia.

Brain research bulletin

|September 21, 2023

概括

超高场7特斯拉fMRI显示,集中注意力的冥想减少了默认模式网络中的活动. 这项研究证实了冥想.

科学领域:

神经科学是一个神经科学.
认知科学认知科学
心理学心理学心理学

背景情况:

功能性MRI (fMRI) 对于理解冥想的神经生物学至关重要.
超高场7特斯拉fMRI提供增强的信号质量和神经解剖学分辨率.
以前的研究表明,冥想影响大脑活动,但控制生理上的混乱是关键.

研究的目的:

用7特斯拉fMRI研究集中注意力冥想的神经基质.
复制和验证有关冥想对大脑活动影响的现有发现.
评估使用7特斯拉fMRI进行冥想研究的可行性,同时控制生理变量.

主要方法:

10名初学者冥想者在集中注意力冥想和平静思维期间接受了7次特斯拉fMRI扫描.
fMRI信号被调整为冥想和休息条件之间的生理差异.
在扫描后的两周内,对状态正念,焦虑和注意力的变化进行了评估.

主要成果:

冥想显著降低了默认模式网络枢纽 (例如,中间前额叶皮质,后带皮质) 和其他大脑区域的活动.
在对生理波动进行严格的统计纠正后,这些发现仍然具有意义.
国家正念度量得分在冥想后显著增加,并在两周的随访中保持不变.

结论:

7特斯拉fMRI是研究集中注意力冥想的可行和有价值的工具.
这项研究支持了冥想减弱了与自我引用处理相关的默认模式网络活动的证据.
未来的神经成像研究应该包括生理学混控制和行为评估.

关键词:

7 特斯拉特斯拉是什么意思开始冥想的初学者.默认模式的网络模式是默认模式.集中注意力冥想集中注意力冥想功能性核磁共振成像 (MRI) 是一种功能性核磁共振成像.试点研究试点研究

更多相关视频

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

Published on: August 5, 2014

Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity

Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity

Published on: July 1, 2014

相关概念视频

Brain Imaging

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...

Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...