Something might be useful here but since they tested with healthy controls I'm not sure how this translates to stroke survivors.
Modulation of event-related desynchronization in robot assisted hand performance: brain oscillatory changes in active, passive and imagined movements
RESEARCH Open Access
Emanuela Formaggio 1*,
Silvia Francesca Storti 2,
Ilaria Boscolo Galazzo 2,
Marialuisa Gandolfi 3,
Christian Geroin 3,
Nicola Smania 3,
Laura Spezia 3,
Andreas Waldner 4,
Antonio Fiaschi 1,2
and Paolo Manganotti 1,2
Robot-assisted therapy in patients with neurological disease is an attempt to improve function in a moderate to severe hemiparetic arm. A better understanding of cortical modifications after robot-assisted training could aid in refining rehabilitation therapy protocols for stroke patients. Modifications of cortical activity in healthy subjects were evaluated during voluntary active movement, passive robot-assisted motor movement, and motor imagery tasks performed under unimanual and bimanual protocols.
Methods:
Twenty-one channel electroencephalography (EEG) was recorded with a video EEG system in 8 subjects. The subjects performed robot-assisted tasks using the Bi-Manu Track robot-assisted arm trainer. The motor paradigm was executed during one-day experimental sessions under eleven unimanual and bimanual protocols of active, passive and imaged movements. The event-related-synchronization/desynchronization (ERS/ERD) approach to the EEG data was applied to investigate where movement-related decreases in alpha and beta power were localized.
Results:
Voluntary active unilateral hand movement was observed to significantly activate the contralateral side;however, bilateral activation was noted in all subjects on both the unilateral and bilateral active tasks, as well as desynchronization of alpha and beta brain oscillations during the passive robot-assisted motor tasks. During active passive movement when the right hand drove the left one, there was predominant activation in the contralateral side.Conversely, when the left hand drove the right one, activation was bilateral, especially in the alpha range. Finally,significant contralateral EEG desynchronization was observed during the unilateral task and bilateral ERD during the bimanual task.
Conclusions:
This study suggests new perspectives for the assessment of patients with neurological disease. The findingsmay be relevant for defining a baseline for future studies investigating the neural correlates of behavioral changes afterrobot-assisted training in stroke patients.
Keywords:
EEG, ERD, Active, Passive, Motor imagery, Bi-Manu-Track
* Correspondence: emanuela.formaggio@univr.it
1
Department of Neurophysiology, IRCCS Fondazione Ospedale San Camillo,Venice, Italy. Full list of author information is available at the end of the article
Abstract
Background:Robot-assisted therapy in patients with neurological disease is an attempt to improve function in a moderate to severe hemiparetic arm. A better understanding of cortical modifications after robot-assisted training could aid in refining rehabilitation therapy protocols for stroke patients. Modifications of cortical activity in healthy subjects were evaluated during voluntary active movement, passive robot-assisted motor movement, and motor imagery tasks performed under unimanual and bimanual protocols.
Methods:
Twenty-one channel electroencephalography (EEG) was recorded with a video EEG system in 8 subjects. The subjects performed robot-assisted tasks using the Bi-Manu Track robot-assisted arm trainer. The motor paradigm was executed during one-day experimental sessions under eleven unimanual and bimanual protocols of active, passive and imaged movements. The event-related-synchronization/desynchronization (ERS/ERD) approach to the EEG data was applied to investigate where movement-related decreases in alpha and beta power were localized.
Results:
Voluntary active unilateral hand movement was observed to significantly activate the contralateral side;however, bilateral activation was noted in all subjects on both the unilateral and bilateral active tasks, as well as desynchronization of alpha and beta brain oscillations during the passive robot-assisted motor tasks. During active passive movement when the right hand drove the left one, there was predominant activation in the contralateral side.Conversely, when the left hand drove the right one, activation was bilateral, especially in the alpha range. Finally,significant contralateral EEG desynchronization was observed during the unilateral task and bilateral ERD during the bimanual task.
Conclusions:
This study suggests new perspectives for the assessment of patients with neurological disease. The findingsmay be relevant for defining a baseline for future studies investigating the neural correlates of behavioral changes afterrobot-assisted training in stroke patients.
Keywords:
EEG, ERD, Active, Passive, Motor imagery, Bi-Manu-Track
* Correspondence: emanuela.formaggio@univr.it
1
Department of Neurophysiology, IRCCS Fondazione Ospedale San Camillo,Venice, Italy. Full list of author information is available at the end of the article
Author details
1 Department of Neurophysiology, IRCCS Fondazione Ospedale San Camillo,Venice, Italy.
2 Clinical Neurophysiology and Functional Neuroimaging Unit,Section of Neurology, Department of Neurological, Neuropsychological,Morphological and Movement Sciences, AOUI of Verona, Verona, Italy.
3 Neuromotor and Cognitive Rehabilitation Research Centre (CRRNC), USONeurological Rehabilitation, Department of Neurological, Neuropsychological,Morphological and Movement Sciences, AOUI of Verona, Verona, Italy.
4 Department of Neurological Rehabilitation, Private Hospital Villa Melitta,Bolzano, Italy.
1 Department of Neurophysiology, IRCCS Fondazione Ospedale San Camillo,Venice, Italy.
2 Clinical Neurophysiology and Functional Neuroimaging Unit,Section of Neurology, Department of Neurological, Neuropsychological,Morphological and Movement Sciences, AOUI of Verona, Verona, Italy.
3 Neuromotor and Cognitive Rehabilitation Research Centre (CRRNC), USONeurological Rehabilitation, Department of Neurological, Neuropsychological,Morphological and Movement Sciences, AOUI of Verona, Verona, Italy.
4 Department of Neurological Rehabilitation, Private Hospital Villa Melitta,Bolzano, Italy.
No comments:
Post a Comment