<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello all,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’d like to ask a question about mne_compute_raw_inverse and snr option.<o:p></o:p></p><p class=MsoNormal>I’m working with raw fif files and I recently read on this mailing list that for single trial analysis (which I want to do) we should use a lower snr (for ex 1) instead of the default option (snr=3)<o:p></o:p></p><p class=MsoNormal>Now I’m using the command mne_compute_raw_inverse with the following options:<o:p></o:p></p><p class=MsoNormal>--in <fif file><o:p></o:p></p><p class=MsoNormal>--inv <inv file><o:p></o:p></p><p class=MsoNormal>--labeldir <label file><o:p></o:p></p><p class=MsoNormal>--spm<o:p></o:p></p><p class=MsoNormal>--snr 1<o:p></o:p></p><p class=MsoNormal>--out <output file><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I compared my file previously computed with no srn option (should be default, snr=3) and the one obtain with snr=1 option, I have the same output. Now if I force with snr=3, the file is different from the one computed with no snr option?? I also have the same pattern if I remove the spm option..<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>My file has a nave=1 (raw) does this mean that MNE is adapting the snr to the appropriate level of noise regarding the nave number if the snr option is not used?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks in advance for your answer<o:p></o:p></p><p class=MsoNormal>Best<o:p></o:p></p><p class=MsoNormal>Elisabeth<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>__________________________________________________________<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Dr Elisabeth Fonteneau<o:p></o:p></p><p class=MsoNormal>Neurolex Group<o:p></o:p></p><p class=MsoNormal>Department of Psychology<o:p></o:p></p><p class=MsoNormal>University of Cambridge<o:p></o:p></p><p class=MsoNormal>Downing Street, Cambridge CB2 3EB, UK<o:p></o:p></p><p class=MsoNormal>Phone: +44 1223 333 548<o:p></o:p></p><p class=MsoNormal>Email: <a href="mailto:ef309@cam.ac.uk"><span style='color:blue'>ef309@cam.ac.uk</span></a><o:p></o:p></p><p class=MsoNormal>Web: <a href="http://www.neurolex.psychol.cam.ac.uk/directory/ef309@cam.ac.uk"><span style='color:blue'>www.neurolex.psychol.cam.ac.uk/directory/ef309@cam.ac.uk</span></a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>