[Eeglablist] Question about ERSP statistics

[Lianyang Li]

Hi Makoto

Thank you very much for your reply. I want to verify your meaning of
"subtract baseline".
Before computing ERSP, I have removed the baseline of each trial of each
subject with prestimulus, e.g [-200 0]. Is that what you said?
Or should I remove the baseline with the whole range or remove baseline of
ERSP results?

Thanks
Lianyang

On Tue, Oct 6, 2015 at 12:12 PM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
wrote:

> Dear Lianyang,
>
> My initial guess: in the 2.png you did not subtract baseline, did you?
>
> Makoto
>
> On Fri, Sep 25, 2015 at 3:44 PM, Lianyang Li <lli26 at uh.edu> wrote:
>
>> Hi Dear all
>>
>> I came across some problems when I was do the ERSP statistics with single
>> trials.
>> I have 2 groups of data(mTBI and normal), both have four
>> conditions(1,3,5,7). After pre-computing the ERSP and save the single trial
>> information, I tried to get some statistics results based on that.
>> The parameters are shown in the Figure 1.
>> The results using single trials are shown in the Figure 2.
>> The results without single trials are shown in the Figure 3.
>> My question is the scale in Figure 2 seems to be too much larger than
>> that of Figure 3. I cannot understand these difference and hardly find some
>> information about this online or in help. So that I cannot make sure if the
>> p-value is reliable. Would you please help me with this?
>>
>> Thanks
>> Lianyang
>>
>> --
>>
>> U
>>   H
>>
>> UNIVERSITY *of * HOUSTON
>>
>>
>> Engineering Technology, Computer Science,
>> Electrical and Computer Engineering
>>
>>
>>
>> *Lianyang Li , Graduate Student. Research AssistantBiomedical Imaging Lab*
>>
>> Philip G. Hoffman Hall   •   Houston, TX 77204-3058   •   Room 233
>> Phone: *832-607-6588 <832-607-6588>*  E-mail: *lli26 at uh.edu
>> <lli26 at uh.edu>*  Web: *http://www.tearsmorethansaid.com/
>> <http://www.tearsmorethansaid.com/>*
>>
>>
>>
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>
>
>
> --
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
>



-- 

U
  H

UNIVERSITY *of * HOUSTON


Engineering Technology, Computer Science,
Electrical and Computer Engineering



*Lianyang Li , Graduate Student. Research AssistantBiomedical Imaging Lab*

Philip G. Hoffman Hall   •   Houston, TX 77204-3058   •   Room 233
Phone: *832-607-6588*  E-mail: *lli26 at uh.edu <lli26 at uh.edu>*  Web:
*http://www.tearsmorethansaid.com/
<http://www.tearsmorethansaid.com/>*
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