scholarly journals Disentangling motor execution from motor imagery with the phantom limb

Brain ◽  
2012 ◽  
Vol 135 (2) ◽  
pp. 582-595 ◽  
Author(s):  
Estelle Raffin ◽  
Jérémie Mattout ◽  
Karen T. Reilly ◽  
Pascal Giraux
Keyword(s):  
Motor Imagery ◽  
Phantom Limb ◽  
Motor Execution

scholarly journals Source Detection and Functional Connectivity of the Sensorimotor Cortex during Actual and Imaginary Limb Movement: A Preliminary Study on the Implementation of eConnectome in Motor Imagery Protocols

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Alkinoos Athanasiou ◽  
Chrysa Lithari ◽  
Konstantina Kalogianni ◽  
Manousos A. Klados ◽  
Panagiotis D. Bamidis
Keyword(s):  
Functional Connectivity ◽  
Motor Imagery ◽  
Sensorimotor Cortex ◽  
Mu Rhythm ◽  
Source Detection ◽  
Motor Execution ◽  
Motor Tasks ◽  
Computer Interfaces ◽  
Preliminary Study ◽  
Real Hand

Introduction. Sensorimotor cortex is activated similarly during motor execution and motor imagery. The study of functional connectivity networks (FCNs) aims at successfully modeling the dynamics of information flow between cortical areas.Materials and Methods. Seven healthy subjects performed 4 motor tasks (real foot, imaginary foot, real hand, and imaginary hand movements), while electroencephalography was recorded over the sensorimotor cortex. Event-Related Desynchronization/Synchronization (ERD/ERS) of the mu-rhythm was used to evaluate MI performance. Source detection and FCNs were studied with eConnectome.Results and Discussion. Four subjects produced similar ERD/ERS patterns between motor execution and imagery during both hand and foot tasks, 2 subjects only during hand tasks, and 1 subject only during foot tasks. All subjects showed the expected brain activation in well-performed MI tasks, facilitating cortical source estimation. Preliminary functional connectivity analysis shows formation of networks on the sensorimotor cortex during motor imagery and execution.Conclusions. Cortex activation maps depict sensorimotor cortex activation, while similar functional connectivity networks are formed in the sensorimotor cortex both during actual and imaginary movements. eConnectome is demonstrated as an effective tool for the study of cortex activation and FCN. The implementation of FCN in motor imagery could induce promising advancements in Brain Computer Interfaces.

scholarly journals Corrigendum: Aging Changes Effective Connectivity of Motor Networks During Motor Execution and Motor Imagery

2020 ◽  
Vol 12 ◽  
Author(s):  
Li Wang ◽  
Ye Zhang ◽  
Jingna Zhang ◽  
Linqiong Sang ◽  
Pengyue Li ◽  
...  
Keyword(s):  
Motor Imagery ◽  
Effective Connectivity ◽  
Motor Execution

Effectiveness of mirror therapy, motor imagery, and virtual feedback on phantom limb pain following amputation: A systematic review

2017 ◽  
Vol 42 (3) ◽  
pp. 288-298 ◽  
Author(s):  
Laura Herrador Colmenero ◽  
Jose Manuel Perez Marmol ◽  
Celia Martí-García ◽  
María de los Ángeles Querol Zaldivar ◽  
Rosa María Tapia Haro ◽  
...  
Keyword(s):  
Systematic Review ◽  
Motor Imagery ◽  
Visual Feedback ◽  
Methodological Quality ◽  
Internal Validity ◽  
Phantom Limb Pain ◽  
Research Quality ◽  
Phantom Limb ◽  
Mirror Therapy ◽  
Limb Pain

Background: Phantom limb pain is reported in 50%–85% of people with amputation. Clinical interventions in treating central pain, such as mirror therapy, motor imagery, or virtual visual feedback, could redound in benefits to amputee patients with phantom limb pain. Objectives: To provide an overview of the effectiveness of different techniques for treating phantom limb pain in amputee patients. Study design: Systematic review. Methods: A computerized literature search up to April 2017 was performed using the following databases: PubMed, Scopus, CINAHL, MEDLINE, ProQuest, PEDro, EBSCOhost, and Cochrane Plus. Methodological quality and internal validity score of each study were assessed using PEDro scale. For data synthesis, qualitative methods from the Cochrane Back Review Group were applied. Results: In all, 12 studies met our inclusion criteria, where 9 were rated as low methodological quality and 3 rated moderate quality. All studies showed a significant reduction in pain, but there was heterogeneity among subjects and methodologies and any high-quality clinical trial (PEDro score ≤8; internal validity score ≤5) was not found. Conclusion: Mirror therapy, motor imaginary, and virtual visual feedback reduce phantom limb pain; however, there is limited scientific evidence supporting their effectiveness. Future studies should include designs with more solid research methods, exploring short- and long-term benefits of these therapies. Clinical relevance This systematic review investigates the effectiveness of mirror therapy, motor imagery, and virtual visual feedback on phantom limb pain, summarizing the currently published trials and evaluating the research quality. Although these interventions have positive benefits in phantom limb pain, there is still a lack of evidence for supporting their effectiveness.

scholarly journals Cortical activity during motor execution, motor imagery, and imagery-based online feedback

2010 ◽  
Vol 107 (9) ◽  
pp. 4430-4435 ◽  
Author(s):  
K. J. Miller ◽  
G. Schalk ◽  
E. E. Fetz ◽  
M. den Nijs ◽  
J. G. Ojemann ◽  
...  
Keyword(s):  
Motor Imagery ◽  
Cortical Activity ◽  
Motor Execution ◽  
Online Feedback

scholarly journals Brain Activation in Primary Motor and Somatosensory Cortices during Motor Imagery Correlates with Motor Imagery Ability in Stroke Patients

2012 ◽  
Vol 2012 ◽  
pp. 1-17 ◽  
Author(s):  
Linda Confalonieri ◽  
Giuseppe Pagnoni ◽  
Lawrence W. Barsalou ◽  
Justin Rajendra ◽  
Simon B. Eickhoff ◽  
...  
Keyword(s):  
Motor Imagery ◽  
Brain Activity ◽  
Premotor Cortex ◽  
Region Of Interest ◽  
Wave Force ◽  
Sine Wave ◽  
Lower Percentage ◽  
Imagery Ability ◽  
Motor Execution ◽  
Stroke Patients

Aims. While studies on healthy subjects have shown a partial overlap between the motor execution and motor imagery neural circuits, few have investigated brain activity during motor imagery in stroke patients with hemiparesis. This work is aimed at examining similarities between motor imagery and execution in a group of stroke patients. Materials and Methods. Eleven patients were asked to perform a visuomotor tracking task by either physically or mentally tracking a sine wave force target using their thumb and index finger during fMRI scanning. MIQ-RS questionnaire has been administered. Results and Conclusion. Whole-brain analyses confirmed shared neural substrates between motor imagery and motor execution in bilateral premotor cortex, SMA, and in the contralesional inferior parietal lobule. Additional region of interest-based analyses revealed a negative correlation between kinaesthetic imagery ability and percentage BOLD change in areas 4p and 3a; higher imagery ability was associated with negative and lower percentage BOLD change in primary sensorimotor areas during motor imagery.

Sign in / Sign up

Export Citation Format

Share Document