.lay layout file for neuromag 306 channels

[Sameer Walawalkar]

Hello Ingrid,

Thanks for your email. Here is some info which might help you.

lay =

       prj: [307x2 double]
       box: [307x2 double]
     label: {307x1 cell}


compRR_orig =

       fsample: 1000
          time: {1x30 cell}
         trial: {1x30 cell}
         label: {307x1 cell}
     topolabel: {307x1 cell}
          topo: [307x307 double]
           cfg: [1x1 struct]

The command I used was
topoplot([], lay.prj(1:307,1), lay.prj(1:307,2), compRR_orig.topo(:,1))

so my cfg was essentially cfg = [];

I am not sure what you mean by which topoplot. The vector compRR_orig
contains independent components calculated by componentanalysis.m; maybe
this helps.

thanks,
sameer


On Mon, 19 Feb 2007, Ingrid Nieuwenhuis wrote:

> Hi Sameer,
>
> I might be able to help, but could you specify a bit more what you did? So
> which topoplot did you call, and what was your cfg? And what are the fields
> in your data that you want to plot?
>
> Best,
> Ingrid
>
> -----Original Message-----
> From: FieldTrip discussion list [mailto:FIELDTRIP at NIC.SURFNET.NL] On Behalf
> Of Sameer Walawalkar
> Sent: Monday, February 19, 2007 6:24 PM
> To: FIELDTRIP at NIC.SURFNET.NL
> Subject: Re: [FIELDTRIP] .lay layout file for neuromag 306 channels
>
> Thanks Dasha for the files, though I learned from Christaian's email and
> further studying createlayout that if the appropriate layout files do not
> exist, createlayout can be used to create them.
>
> But now I am getting an error which I dont understand.
>
> topoplot([], lay.prj(1:307,1), lay.prj(1:307,2), compRR_orig.topo(:,1))
> ??? Error using ==> topoplot
> Flag arguments must be strings
>
>
> While trying to understand this error, I realized that in the topoplot.m
> file
>
> 	function [handle] = topoplot(varargin)
>
> handle is never assigned a value....
>
>
> best,
> sameer
>
>
>
>
>
>
>
>
>
>
>
> On Mon, 19 Feb 2007, Daria Osipova wrote:
>
>> Hi
>>
>> Attached are 306-channel Neuromag layout files (also for magnetometers and
>> gradiometers separately).
>>
>> Cheers,
>>
>> Dasha
>>
>>
>>
>>
>>
>>  _____
>>
>> From: FieldTrip discussion list [mailto:FIELDTRIP at NIC.SURFNET.NL] On
> Behalf
>> Of Christian Hesse
>> Sent: Monday, February 19, 2007 9:19 AM
>> To: FIELDTRIP at NIC.SURFNET.NL
>> Subject: Re: [FIELDTRIP] .lay layout file for neuromag 306 channels
>>
>>
>>
>> Hi Sameer,
>>
>>
>>
>> please have a look at the FT (in fieldtrip/private) function
>> "createlayout.m" (in the fieldtrip/private directory) which should be able
>> to create a layout for your Neuromag306 data on the fly. The function
> takes
>> a structure containing gradiometer information as input. If you read in
> your
>> data using "preprocessing.m" then the gradiometer info will be contained
> in
>> a field called data.grad.
>>
>>
>>
>> Hope this helps,
>>
>> Christian
>>
>>
>>
>>
>>
>>
>>
>> On 16 Feb 2007, at 21:46, Sameer Walawalkar wrote:
>>
>>
>>
>>
>>
>> Hi,
>>
>>
>>
>> As I had written some time ago, I could not find a .lay file which would
> be
>> useful for neuromag 306 (there is a NM122.lay file there).
>>
>>
>>
>> Is there some way around this?
>>
>>
>>
>> sameer
>>
>>
>>
>>
>>
>> ----------------------------------------------------------------------
>>
>> Christian Hesse, PhD, MIEEE
>>
>>
>>
>> F.C. Donders Centre for Cognitive Neuroimaging
>>
>> P.O. Box 9101
>>
>> NL-6500 HB Nijmegen
>>
>> The Netherlands
>>
>>
>>
>> Tel.: +31 (0)24 36 68293
>>
>> Fax: +31 (0)24 36 10989
>>
>>
>>
>> Email: c.hesse at fcdonders.ru.nl
>>
>> Web: www.fcdonders.ru.nl
>>
>> ----------------------------------------------------------------------
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>