There are a large number of articles using EEG and fMRI to study the evaluation and prediction of upper limb function of subjects after stroke, and there is a lack of research on lower limb function. Is it because EEG and fMRI are not suitable for studying lower limb function or are there any technical difficulties?（For example, it may be difficult for EEG to collect signals from brain regions that are in charge of lower limb functions？）
I think for fMRI you can have small tasks for upper limb while inside the scanner, without moving other parts of the body. I think this is more difficult for lower limb. You can elevate your straight leg a bit, but this is a diifficult task for some, and you would be more prone to move other parts of your body.
There are some articles in this area:
Vinehout K, Schmit BD, Schindler-Ivens S. Lower Limb Task-Based Functional Connectivity Is Altered in Stroke. Brain Connect. 2019 May;9(4):365-377. doi: 10.1089/brain.2018.0640
Smith MC, Byblow WD, Barber PA, Stinear CM. Proportional Recovery From Lower Limb Motor Impairment After Stroke. Stroke. 2017 May;48(5):1400-1403. doi: 10.1161/STROKEAHA.116.016478
Zheng X, Chen D, Yan T, Jin D, Zhuang Z, Tan Z, Wu W. A Randomized Clinical Trial of a Functional Electrical Stimulation Mimic to Gait Promotes Motor Recovery and Brain Remodeling in Acute Stroke. Behav Neurol. 2018 Dec 18;2018:8923520. doi: 10.1155/2018/8923520
Enzinger C, Johansen-Berg H, Dawes H, Bogdanovic M, Collett J, Guy C, Ropele S, Kischka U, Wade D, Fazekas F, Matthews PM. Functional MRI correlates of lower limb function in stroke victims with gait impairment. Stroke. 2008 May;39(5):1507-13. doi: 10.1161/STROKEAHA.107.501999.
Jesper Fabricius thank you very much! what you mentioned may be an important reason for the researchs of task EEG or MRI.In fact, there are some EEG articles that study lower limb function. These papers are mainly based on the task state EEG of BCI or robots. For resting state EEG and fMRI, there seems to be little research on lower limb function.
Bhogaraju Anand thank you so much! The articles you recommend are basically based on tasks or stimuli. There are countless resting-state EEG/fMRI based on upper limb function, especially in the field of EEG. However, it is rare to use resting EEG to study the function of lower limbs. I don't know why this is caused.
You may be interested in the article below.
https://ieeexplore.ieee.org/document/8037223
- Badges
- Science topic