[Eeglablist] eye movement in ERP

[Arnaud Delorme]

Dear Zude,

to avoid eye movements, simply present your stimuli for about 20 
milliseconds. Even with such a short presentation time, complex object 
recognition is possible. See for instance,

Thorpe S, Fize D, Marlot C. 1996. Speed of processing in the human 
visual system. Nature 381: 520-2.

Best,

Arno

zhuzude wrote:
>
> Hi, all,
>
> I want to do an ERP study with picture sets and sentence sets, 
> especially the picture stimuli sets are corresponding to sentence 
> stimuli sets. The aim of the study is to estimate whether the same 
> core cognitive processing implement the two kinds of stimuli 
> processing. The pictures would be about 4cm by 4cm size; three 
> pictures would be a trial stimulus, corresponding with 3 sentences 
> which have 4-5 Chinese characters. My question is: subjects' eye 
> movements are going to be numerous because the present pictures and 
> bits of sentences probably longer than 1 or 2 characters. So I worry 
> that eye movement signals would interfere with what we really want to 
> record. And I am afraid that whether filtering is enough effective. 
> Except for filtering, another possible resolution is that set the eye 
> movement into the matrix in the analysis of covariance. However, I 
> don¡¯t know whether this is enough yet. Since eye movement would be 
> quite of a problem in the EEG study, how can I promote my design?
>
> Best regards. Zude.
>