[Eeglablist] Simultaneous recording of EEG and Robot motion

[Makoto Miyakoshi]

Dear Sanjaya,

Right, maybe post-hoc signal processing can treat it well. At least, you
can optimize the hardware so that the noise can be easier to be handled
with.

Makoto

On Tue, Oct 18, 2016 at 11:15 PM, Sanjaya Vipula <sanjayavipula at gmail.com>
wrote:

> Dear Makoto,
>
> Exactly as you anticipated, the behavior is really different depending on
> the conductivity.
>
> However the major problem is when the motor is operating the noise level
> is too high. I am going to try to identify a exact noise band related to
> the motor movement and to filter it as some of the members have suggested.
>
> Thank you for your comment.
>
> regards,
>
> Sanjaya
>
> On 18 October 2016 at 16:56, Makoto Miyakoshi <mmiyakoshi at ucsd.edu> wrote:
>
>> Dear Sanjaya,
>>
>> Hmm that's a difficult question.
>> Probably you can test it step by step. For example, while touching the
>> robot with a rubber hand vs. bare hand, or using wood stick vs. rubber
>> stick vs. conductive stick, or touch, close but no touch, no touch far,
>> etc. I'm sure the artifact level is highest when subject's body touches the
>> robot. Could there be any non-conductive material between a subject and and
>> the robot to prevent the artifact from contaminating EEG?
>>
>> Makoto
>>
>> On Tue, Oct 11, 2016 at 12:29 AM, Sanjaya Vipula <sanjayavipula at gmail.com
>> > wrote:
>>
>>> Dear All,
>>>
>>> I need some advice on a problem I face during EEG recording.
>>>
>>> I am trying to record EEG simultaneously with an exoskeleton movement.
>>> The subject wear the exoskeleton during the experiments.
>>>
>>> When the exoskeleton is not operating normal EEG signals can be observed
>>> from subject. However when the exoskeleton is operating a huge noise can
>>> observed in the EEG recordings.
>>>
>>> I tried separating the power source of the EEG amplifier and the robot.
>>> The noise is probably due to the motor operation. How the effect from the
>>> motor operation can be suppressed in the EEG signal?
>>>
>>> Thank you very much in advance for any comments and tips.
>>>
>>> regards,
>>>
>>> Sanjaya
>>>
>>> --
>>> <sanjayavipula at gmail.com>Sanjaya Vipula Bandara,
>>> B.Sc. Mech.Eng.(SL), MPhil.Biorobotics(SL), AMIESL
>>> PhD Student,
>>> Department of Mechanical Engineering,
>>> Kyushu University,
>>> Fukuoka,
>>> Japan
>>>
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>>
>>
>>
>> --
>> Makoto Miyakoshi
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>>
>
>
>
> --
> <sanjayavipula at gmail.com>Sanjaya Vipula Bandara,
> B.Sc. Mech.Eng.(SL), MPhil.Biorobotics(SL), AMIESL
> PhD Student,
> Department of Mechanical Engineering,
> Kyushu University,
> Fukuoka,
> Japan
>



-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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