<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//DE"><HTML><HEAD><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><TITLE></TITLE></HEAD><BODY><div style="font-family:arial,helvetica,sans-serif;font-size:10pt;"><p style="margin:0px;padding:0px;">Dear all</p>
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<p style="margin:0px;padding:0px;">I am currently using the LCMV beamformer (beamformer_lcmv.m) with my own data.</p>
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<p style="margin:0px;padding:0px;">Your function:</p>
<p style="margin:0px;padding:0px;">beamformer_lcmv(dip, grad, vol, dat, Cy, varargin)</p>
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<p style="margin:0px;padding:0px;">My input:</p>
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<p style="margin:0px;padding:0px;">dip - structure array, with fields: - pos Nx3 array (N- sources)</p>
<p style="margin:0px;padding:0px;"> - inside 1xN array</p>
<p style="margin:0px;padding:0px;"> - outside empty (all sources inside)</p>
<p style="margin:0px;padding:0px;"> - leadfield 1xN cell array with 1xM arrays (M- channels)</p>
<p style="margin:0px;padding:0px;"> </p>
<p style="margin:0px;padding:0px;">grad - empty -> because I am using my own leadfield</p>
<p style="margin:0px;padding:0px;">vol - empty -> because I am using my own leadfield</p>
<p style="margin:0px;padding:0px;">dat - MxS array (S- samples)</p>
<p style="margin:0px;padding:0px;">Cy - MxM array</p>
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<p style="margin:0px;padding:0px;">The problem:</p>
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<p style="margin:0px;padding:0px;">I want to check my own implementation of LCMV beamformer against MNE (software) an your LCMV beamformer with similar data</p>
<p style="margin:0px;padding:0px;">( measurement, leadfield, data covariance).</p>
<p style="margin:0px;padding:0px;">The MNE and my own beamformer show the same activity of sources. But your LCMV beamformer calculates activities on other places in the brain.</p>
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<p style="margin:0px;padding:0px;">My question:</p>
<p style="margin:0px;padding:0px;">What I am doing wrong?</p>
<p style="margin:0px;padding:0px;">Are the input arguments false or the numbers of sources change?</p>
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<p style="margin:0px;padding:0px;">Thanks in advance for the help.</p>
<p style="margin:0px;padding:0px;">Diana</p>
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