Deans' stroke musings

Changing stroke rehab and research worldwide now.Time is Brain!Just think of all the trillions and trillions of neurons that DIE each day because there are NO effective hyperacute therapies besides tPA(only 12% effective). I have 493 posts on hyperacute therapy, enough for researchers to spend decades proving them out. These are my personal ideas and blog on stroke rehabilitation and stroke research. Do not attempt any of these without checking with your medical provider. Unless you join me in agitating, when you need these therapies they won't be there.

What this blog is for:

Shortly after getting out of the hospital and getting NO information on the process or protocols of stroke rehabilitation and recovery I started searching on the internet and found that no other survivor received useful information. This is an attempt to cover all stroke rehabilitation information that should be readily available to survivors so they can talk with informed knowledge to their medical staff. It's quite disgusting that this information is not available from every stroke association and doctors group.
My back ground story is here:

Thursday, August 11, 2016

EP 10. Home-based motor imagery training in chronic stroke supported by neurofeedback: A feasibility study

I've got 18 posts on motor imagery and 14 posts on neurofeedback going back to Jan. 2012. What the fuck more does it take for some neurologist to do their fucking job and write up a stroke protocol on this?
Universität Oldenburg, Neuropsychologie, Oldenburg, Germany
Chronic hemiparesis of an upper limp[sic] following stroke has been related to an over-involvement of the ipsilateral hemisphere that inhibits use of the affected limb. Interventions helping to shift back this altered lateralization have been suggested to positively affect upper limp functional recovery. One such intervention is the combination of motor imagery (MI) supported by EEG neurofeedback. However, cortical reorganization requires highly intensive practice. In this feasibility study this was achieved by implementing a mobile EEG neurofeedback system.
The training regime consisted of 14 MI sessions over a time course of 4 weeks. Three chronic stroke patients practiced MI neurofeedback using kinaesthetic imagination of a power grip of either the affected or the unaffected hand. Neurofeedback was based on features extracted from the 8-30 Hz frequency range. MI training was conducted at the patients’ home using a fully mobile 24-channel EEG system. Before and after the training, motor functions were assessed using a modified version of the Fugl-Meyer Assessment (FMA) and the modified Motor Assessment Scale (MAS). Moreover, pre- and post-training 96-channel EEG recordings were performed for MI and movement execution (ME) of the power grip task that was used for the MI neurofeedback training. Event-related desynchronization (ERD) in the 8–30 Hz frequency range was extracted offline for a region of interest analysis. Analysis focused on contra- and ipsilateral ERD and on the lateralization of ERD, defined as the difference between contralateral and ipsilateral ERD.
All patients remained motivated throughout the training and completed the training regime. During MI and ME with the unaffected hand, patients showed stronger contralateral than ipsilateral activity in both the pre- and the post-training sessions. For the affected hand, MI and ME were however associated with stronger ipsilateral than contralateral activity. Changes were observed over the course of training, that, on a descriptive level, suggest a reduction of the altered lateralization for the affected hand in all three patients during MI. Furthermore, for one patient a significant improvement in the FMA score was observed, which paralleled the changes in MI and ME induced ERD.
This study demonstrates that home-based MI neurofeedback training is feasible and allows for highly intensive training regimes. The observations made are in line with the notion of an over-involvement of the ipsilateral hemisphere during activities of the affected limb. The described changes of lateralization with MI neurofeedback training encourage continuing this line of research with larger sample sizes and matched healthy controls, to see if home-based MI neurofeedback training can indeed help to shift MI- and ME-related activation towards the expected lateralization patterns.

To access this article, please choose from the options below

Log In

Purchase access to this article

Claim Access

If you are a current subscriber with Society Membership or an Account Number, claim your access now.

Subscribe to this title

Purchase a subscription to gain access to this and all other articles in this journal.

Institutional Access

Visit ScienceDirect to see if you have access via your institution.

No comments:

Post a Comment