[Eeglablist] Gratton ocular correction issue

[Arnaud Delorme]

Dear Le,

the correction method you mention is an EEGLAB plugin so you might want to contact the authors of the plugin directly.
The problem might be that the plugin only works on continuous data not on segmented data.
Hope this helps,

Arno

On 2 Oct 2012, at 08:17, Thang Le wrote:

> Hi everyone,
> 
> I am running into a problem with the Gratton's ocular correction method in EEGLAB and I was wondering whether you could help me troubleshoot. 
> 
> I have been attempting to apply the Gratton's ocular correction method to a 64-channel data set. The two EOG channels are 65 and 66. So far I have downsampled the data to 256Hz, rereferenced and segmented. The values I used for Gratton's were: 
> 
> Number of EOG channel for regression: [65 66]
> Channels: [1 64]
> Window for Blink-detection: 24
> Voltage for Blink-detection: 200
> 
> However, EEGLAB would give me an error message that says "To RESHAPE the number of elements must not change". I wasn't sure what to use for blink window but it does not look like 24 is the right value.
> 
> Thank you so much for your help.
> 
> Le
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