[FieldTrip] Neuroscan .cnt files

[Giulia Rizza]

Dear Fieldtrippers,
hi to everyone and thanks in advance for your time.
I'm not 
an expert and I'd like to share with you a problem I found in reading cnt files 
acquired with Neuroscan.

I read the data with ft_read_data function and I find 
the attached link Plot1, for instance the first channel. It seems that the 
signal is forced to pass per zero every two samples, so I tried to read them  
excluding the even samples and I find the result in Plot2, while excluding the 
odd values I find the result in Plot3.

http://dl.dropbox.com/u/28258961/Plot01.
rar

Unfortunately there are still some problems since the maximum value that 
can be represented (about 900) is smaller than some values in the data and the 
result is that I find a sharp change of sign. How can I fix it?

Thanks to 
anyone who can help me

Giulia


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