[Eeglablist] about the evoked activity and induced activity

[Makoto Miyakoshi]

Dear Hui-bin,

> Does the evoked activity and induced activity,which were calculated by
subtracting the ‍pre-stimulus power  from the post-stimulus power ‍at each
frequency, follow the same law?

Generally speaking, yes.

> Is it possible that  the magnitudes of ‍the evoked or induced activity
 at each frequency are equal?

Yes, that is possible... I mean I can't think of any reason to exclude that
possibility.

I'm not sure if I'm answering to your question exactly.

Makoto

On Fri, Sep 19, 2014 at 9:12 PM, Hui-bin Jia <420247417 at qq.com> wrote:

> Hi,everyone
>
>         I have a question about the evoked and induced activity‍.
>
>         As we all know, spontaneous EEG activity follow " the 1/f law",
> which means the spectral power of lower band is much larger than the
> spectral power of the higher band. In rest EEG, alpha band power may be
> the largest one.
>
>         Does the evoked activity and induced activity,which were
> calculated by subtracting the ‍pre-stimulus power  from the post-stimulus
> power ‍at each frequency, follow the same law? Is it possible that  the magnitudes
> of ‍the evoked or induced activity  at each frequency are equal?
>
>         Any reply will be appreciated !‍
>
>
> Yours,
> Hui-bin jia
>
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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