[Eeglablist] Bad channel removal

[Makoto Miyakoshi]

Dear Mori,

I have never used it so I don't know. I have no idea either how to
normalize kurtosis (in what sense...)

Makoto

On Tue, Mar 24, 2015 at 5:59 AM, mori larin <morilarin88 at gmail.com> wrote:

> Dear Makoto,
>
> Thank you for your reply.
> I found an option in EEGLAB to normalized the kurtosis for bad channel
> removal. I think this normalisation can reduce the effect of outliers.
> Am I right?
>
> Many thanks,
> Mori
>
> On Thursday, 19 March 2015, Makoto Miyakoshi <mmiyakoshi at ucsd.edu> wrote:
>
>> Dear Mori,
>>
>> I completely agree with you. Therefore I don't use it at all. Maybe you
>> want to use it as a second round (which I don't do anyways) after good
>> first cleaning.
>>
>> Makoto
>>
>> On Tue, Mar 17, 2015 at 7:30 AM, mori larin <morilarin88 at gmail.com>
>> wrote:
>>
>>> Dear all,
>>>
>>> I have a question about bad channel removal in EEGLAB using kurtosis
>>> greater than 5.
>>> The threshold (5) is highly arbitrary. Also, kurtosis is sensitive to
>>> outliers and few bad values can easily allow this threshold to be crossed.
>>> So why the kurtosis has been used with specific threshold?
>>>
>>> Many thanks,
>>> Mori
>>>
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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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