[Eeglablist] Neuroscan data files

[Christopher.Brown at manchester.ac.uk]

Hi JR,

Thanks very much, that solved one problem. For some reason I though all
Neuroscan 4.3 cnt files were in 32 bit format, but it turns out I need 16
bit. Thanks again!

Chris

Christopher Brown 
Human Pain Research Group 
Clinical Sciences Building, 
Hope Hospital, 
Eccles Old Road, 
SALFORD, 
M6 8HD 
0161 2064528 
www.hop.man.ac.uk/painresearch


-----Original Message-----
From: Jeng-Ren Duann [mailto:duann at sccn.ucsd.edu] 
Sent: 08 March 2006 22:24
To: Christopher.Brown at manchester.ac.uk
Cc: eeglablist at sccn.ucsd.edu
Subject: Re: [Eeglablist] Neuroscan data files

Hi,

I am using .cnt file, too. Did you try to play around with the options
16-bit or 32-bit?

JR

> Hello,
>
> I'm wondering if anybody has experience loading Neuroscan .cnt files into
> EEGLAB. When I try this, and view the data, it looks fine from the plot
> but
> the actual data values are completely different from in the original .cnt
> file, out by about 5 orders of magnitude. When I then export the data as
> an
> acsii, these altered values are exported.
>
> The reason I want to do this is that I'd like to import continuous data
> from
> Neuroscan, perform an ICA artefact rejection, and then export the files
> back
> into Neuroscan. Does anybody have an alternative method of doing this that
> may work better? There is a writecnt function in EEGLAB but I can't get it
> to work with my imported and ICA-corrected data.
>
> Best wishes,
> Chris
>
> Christopher Brown
> Human Pain Research Group
> Clinical Sciences Building,
> Hope Hospital,
> Eccles Old Road,
> SALFORD,
> M6 8HD
> 0161 2064528
> www.hop.man.ac.uk/painresearch
>
>
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