[Eeglablist] Clarifying

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Wed May 20 14:28:12 PDT 2015

Dear Marwa,

Sampling rate of 250Hz means your EEG recorder recorded 250 points per
second. Therefore, if your data is 250Hz sampled, you can assume that each
point (technically, interval length between the points) is 4 ms long.


On Fri, May 15, 2015 at 1:58 PM, Roma Nojan <roma.nojan at yahoo.com> wrote:

> Dear all:
> I am a Master student. I have an EEG data, and my work is related to
> detecting eye blinking. I got data from professor which is 3D matrix (n
> channels X samples X trails).
> Each trail is centered on a blink from 1.5 sec before to 1.5 after it.
> However, I did not understand what sampling mean? Is it time?. Is there
> any websites that clarifying that?
> Also, what that the sampling rate 250 Hz means? and how it is related to
> data points?
> 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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