Use the labels in the right column to find what you want. Or you can go thru them one by one, there are only 15722 posts. Searching is done in the search box in upper left corner. I blog on anything to do with stroke.DO NOT DO ANYTHING SUGGESTED HERE AS I AM NOT MEDICALLY TRAINED, YOUR DOCTOR IS, LISTEN TO THEM. BUT I BET THEY DON'T KNOW HOW TO GET YOU 100% RECOVERED. I DON'T EITHER, BUT HAVE PLENTY OF QUESTIONS FOR YOUR DOCTOR TO ANSWER.
Deans' stroke musings
Changing stroke rehab and research worldwide now.Time is Brain!Just think of all thetrillions and trillions of neuronsthateach daybecause there areeffective 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:http://oc1dean.blogspot.com/2010/11/my-background-story_8.html
Thursday, April 20, 2017
Effect of tDCS stimulation of motor cortex and cerebellum on EEG classification of motor imagery and sensorimotor band power
Transcranial direct current stimulation
(tDCS) is a technique for brain modulation that has potential to be used
in motor neurorehabilitation. Considering that the cerebellum and motor
cortex exert influence on the motor network, their stimulation could
enhance motor functions, such as motor imagery, and be utilized for
brain-computer interfaces (BCIs) during motor neurorehabilitation.
A new tDCS montage that influences
cerebellum and either right-hand or feet motor area is proposed and
validated with a simulation of electric field. The effect of current
density (0, 0.02, 0.04 or 0.06 mA/cm2) on
electroencephalographic (EEG) classification into rest or
right-hand/feet motor imagery was evaluated on 5 healthy volunteers for
different stimulation modalities: 1) 10-minutes anodal tDCS before EEG
acquisition over right-hand or 2) feet motor cortical area, and 3)
4-seconds anodal tDCS during EEG acquisition either on right-hand or
feet cortical areas before each time right-hand or feet motor imagery is
performed. For each subject and tDCS modality, analysis of variance and
Tukey-Kramer multiple comparisons tests (p
<0.001) are used to detect significant differences between
classification accuracies that are obtained with different current
densities. For tDCS modalities that improved accuracy, t-tests (p <0.05) are used to compare μ and β band power when a specific current density is provided against the case of supplying no stimulation.
The proposed montage improved the
classification of right-hand motor imagery for 4 out of 5 subjects when
the highest current was applied for 10 minutes over the right-hand motor
area. Although EEG band power changes could not be related directly to
classification improvement, tDCS appears to affect variably different
motor areas on μ and/or β band.
The proposed montage seems capable of
enhancing right-hand motor imagery detection when the right-hand motor
area is stimulated. Future research should be focused on applying higher
currents over the feet motor cortex, which is deeper in the brain
compared to the hand motor cortex, since it may allow observation of
effects due to tDCS. Also, strategies for improving analysis of EEG
respect to accuracy changes should be implemented.