[Eeglablist] about markers

[Makoto Miyakoshi]

Dear Lemya,

Check this page
http://sccn.ucsd.edu/wiki/Plugin_list_process
You may want to try 'clean_rawdata'. This enables to clean continuous data
without discarding datapoints (use -1 to disable rejection functions).
clean_burst is phenomenal.

Makoto


2013/9/30 Lemya Kacha <lem84kachaman at gmail.com>

> Dear Miyakoshi San,
>
> Thank you very much for your reply.
>
> So, as a beginner in EEGlab and EEG studies, what I have understood  from
> your reply is that it is quite impossible to insert event markers if we
> didn't define markers from the beginning. Right?
>
> Actually, we want to avoid dividing the signal into small portions of 10
> seconds each, each portion is related to a different stimulus. And then
> reject the artifacts from each portion separately.
> However, this will affect the timing between the stimuli and the signal
> portions.
>
> What we want ask is:
> Is it possible to reject the artifacts without changing the time related
> to each portion of the signal? (if we reject the artifacts, time or
> duration of the signal will be reduced).
>
>
>
> Thank you very much in advance
>
> Kacha Lemya
>
>
> On Tuesday, October 1, 2013, Makoto Miyakoshi wrote:
>
>> Dear Lemya,
>>
>> Unless you have a completely synched event marker stream, most likely
>> that can't be helped. If you do, of course you can insert new event markers.
>>
>> Makoto (nice to hear from Nagoya!)
>>
>>
>>
>>
>> 2013/9/30 Lemya Kacha <lem84kachaman at gmail.com>
>>
>>> Dear All,
>>>
>>> i did an experiment using Epoc Emotiv research edition by presenting 74
>>> streetscape images to 20 subjects. The experiment was done in two sessions
>>> with the same photos. The problem that I encountered now is that I didn't
>>> insert the markers in all the experiments. when I want to filter the data
>>> and reject the artifacts, i risk to have a problem of timing between the
>>> presented pictures and their related signal that might not correspond
>>> exactly to the flow of the images presented to subjects.
>>>
>>> my question is: Is there any solution to insert markers in this phase
>>> (offline)?
>>> Thank you in advance.
>>>
>>> Kacha Lemya
>>> Nagoya Institute of Technology
>>> Japan
>>>
>>>
>>>
>>>
>>>
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>>
>>
>>
>> --
>> Makoto Miyakoshi
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>>
>


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