[Homer-users] (no subject)

[Meryem Ayse Yucel]

Hi Bryan,

Before anything, I'd check the matrix sizes, SD structure etc in your data
file. You can compare them with tapTest.

Meryem



> Hi,
>
> I've noticed I don't get the error on the tapTest data, but I do get the
> error on my data that I've created. One thing I notice is that the
> hemoglobin concentration is greater in the reference channel than it is in
> the channels that reach the brain.
>
> Two considerations:
> 1) Does that mean I am not seeing any of the hemoglobin activity in the
> brain since the signal looks VERY much like the reference channel but
> weaker?
> 2) Does the error stem from the fact that the reference channel has a
> stronger signal (and as a result a higher concentration) than a channel
> that reaches the brain?
>
> Let me know what you think.
>
> - Bryan
> ________________________________
> From: homer-users-bounces at nmr.mgh.harvard.edu
> [homer-users-bounces at nmr.mgh.harvard.edu] on behalf of Chiu, Bryan (PHTH)
> [bryan.chiu at ubc.ca]
> Sent: Tuesday, August 19, 2014 10:15 AM
> To: homer-users at nmr.mgh.harvard.edu
> Subject: [Homer-users] (no subject)
>
> Hi,
>
> I am currently working with HOMER2 and trying to remove hemoglobin signal
> as a result of scalp interference via short separation (reference
> channels). I wanted to emulate the finger tapping task from the tutorial
> data and I come across this error when trying to ''run''. What is the
> workaround for this?
>
> "Error while evaluating uicontrol Callback
>
> Index exceeds matrix dimensions.
>
> Error in hmrDeconvTB_SS3rd (line 71)
>     rho = sum((ones(length(lstSS),1)*posM(iML,:) -
> posM(lstSS,:)).^2,2).^0.5;
>
> Error in EasyNIRS_Process (line 88)
>         eval( fcall );
>
> Error in EasyNIRS>runNIRSsignalProcess (line 1024)
> [procResult procInput err] = EasyNIRS_Process(hmr);
>
> Error in EasyNIRS>popupmenuNIRSsignalProcess_Callback (line 1437)
>         runNIRSsignalProcess(iGrp,iSubj,iRun,handles);
>
> Error in gui_mainfcn (line 96)
>         feval(varargin{:});
>
> Error in EasyNIRS (line 43)
>     gui_mainfcn(gui_State, varargin{:});
>
> Error in
> @(hObject,eventdata)EasyNIRS('popupmenuNIRSsignalProcess_Callback',hObject,eventdata,guidata(hObject))
>
>
> Error while evaluating uicontrol Callback"
>
> It appears to have an error directly from the short sep processing.
>
> Any help is appreciated.
>
> - Bryan
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