Brain functional connectivity in lower limb amputees
10.3969/j.issn.1006-9771.2022.01.013
- VernacularTitle:下肢截肢患者的脑功能连接
- Author:
Shaowen LIU
1
;
Conghui WEI
1
;
Xinying SHAN
2
;
Yan ZHANG
3
Author Information
1. 1. The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China 2. Beijing Key Laboratory of Rehabilitation Technical Aids for Old-age Disability, National Research Center for Rehabilitation Technical Aids, Beijing 100176, China
2. 2. Beijing Key Laboratory of Rehabilitation Technical Aids for Old-age Disability, National Research Center for Rehabilitation Technical Aids, Beijing 100176, China
3. 1. The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
- Publication Type:Journal Article
- Keywords:
lower limb, amputation, resting-state electroencephalography, functional connectivity, phase-locked values
- From:
Chinese Journal of Rehabilitation Theory and Practice
2022;28(1):90-94
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the changes of functional brain connectivity over multiple frequency bands in resting-state electroencephalography (EEG) for lower limb amputation patients. Methods Resting-state EEG was collected from 18 lower limb amputees and 22 healthy controls from November, 2020 to June, 2021. Functional connectivity matrix was constructed with phase-locked values (PLV), and compared between groups. Results The functional connectivity was weaker in the amputees than in the controls on α band (t = 3.433, P = 0.001) and β band (t = 3.806, P = 0.001), and there was no significant difference on δ band (t = 1.429, P = 0.161) and θ band (t = 1.211, P = 0.233). Conclusion EEG functional connectivity weakens in lower limb amputees in on the α and β band, which results in neuroplasticity of multiple brain regions, not only for limb-respond cortex, but also for frontal, temporal and occipital cortices.
