[Eeglablist] Eye Blink Sampling Rate

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Wed Aug 5 11:08:36 PDT 2015

Dear Marwa,

Run ICA on your data and decompose eye-blink activity and ask your data.
That's the best way to test it.

> 1- Is using 20 Hz sampling rate for the blink means that I can not
acquire more than 20 samples per second?


> 2-What is the sampling rate that I should use for eye blink?

After decomposing eye-blink component, downsample it to the frequencies you
want to test.

> 3-What  it means for the blink to have 8-13 Hz rhythm then?

For me it does not mean anything!

> 4-If I have to down sample the data what is the convenient way to do that
I will appreciate that if you can also send me sources that can help me
about the eye blink behavior.

Use EEGLAB 'change sampling rate'.


On Sun, Aug 2, 2015 at 10:39 PM, Roma Nojan <roma.nojan at yahoo.com> wrote:

> Dear EEGLAB Members:
> I have  question related to eye blink artifact. I need to know the
> convenient number of samples that can represent the blink. I have  to know
> that since I am comparing eye blink event to normal EEG data(EEG data
> without artifacts) by using an automatic way. At first, I used the same
> sampling rate which is 250 Hz for both the blink and the normal EEG, but
> later a friend told me that you can not use the same sampling rate and said
> 20 Hz  will be enough,so my questions are:
> Thank you in advance
> Marwa
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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