Loading...
Lateralized EEG mu power during action observation and motor imagery in typically developing children and children with unilateral Cerebral Palsy
Jongsma, Marijtje L. A. Steenbergen, Bert Baas, C. Marjolein Aarts, Pauline B. van Rijn, Clementina M.
Jongsma, Marijtje L. A.
Steenbergen, Bert
Baas, C. Marjolein
Aarts, Pauline B.
van Rijn, Clementina M.
Abstract
Objective
During motor execution (ME), mu power is diminished over the contralateral hemisphere and increased over the ipsilateral hemisphere, which has been associated with cortical activation of the contralateral motor areas and inhibition of the ipsilateral motor areas respectively. The influence of action observation (AO) and motor imagery (MI) on mu power is less clear, especially in children, and remains to be studied in children with unilateral cerebral palsy (uCP).
Methods
We determined mu power during ME, AO, and MI of 45 typically developing (TD) children and 15 children with uCP over both hemispheres, for each hand.
Results
In TD children, over the left hemisphere mu power was lowered during ME when the right hand was used. In line, over the right hemisphere mu power was lowered when the left hand was addressed. In addition, during AO and MI increased mu power was observed when the right hand was addressed. In children with uCP, over the spared hemisphere mu power was diminished during ME when the less-affected hand was used. However, over the lesioned hemisphere, no mu changes were observed.
Conclusions
The results of TD children fit the activation/inhibition model of mu power.
Significance
The results of children with uCP suggest that the lesioned hemisphere is unresponsive to the motor tasks.
Keywords
EEG, mu rhythm, alpha rhythm, motor imagery, action observation, unilateral cerebral palsy
Date
2020
Type
Journal article
Journal
Clinical Neurophysiology
Book
Volume
131
Issue
12
Page Range
2829-2840
Article Number
ACU Department
Collections
Relation URI
Source URL
Event URL
Open Access Status
Published as ‘gold’ (paid) open access
License
CC BY 4.0
File Access
Open