[Homer-users] Formatting for NIRS-SPM

[Nagels-Coune, Laurien (Stud. FPN)]

Hi all,

I am also interested in the answer to Drew's question. Who has experience with bringing .nirs files to NIRS-SPM?

Kind regards,
Laurien Nagels-Coune

Laurien Nagels-Coune | Visiting Graduate Researcher at UCLA | Research Master in Clinical and Cognitive Neuroscience, track Cognitive Neuroscience | I6073928 | Faculty of Psychology and Neuroscience | Maastricht University
________________________________________
From: homer-users-bounces at nmr.mgh.harvard.edu [homer-users-bounces at nmr.mgh.harvard.edu] On Behalf Of Drew Halliday [d.halliday at ucl.ac.uk]
Sent: 03 July 2015 18:35
To: homer-users at nmr.mgh.harvard.edu
Subject: [Homer-users] Formatting for NIRS-SPM

Dear Homer2 Users,

I am attempting to bring data that I've pre-processed in Homer2 to NIRS-SPM to run GLM analyses and am following what appears to be relatively out-dated protocol from NIRS-SPM (2009).  I'm wondering if anyone has had success with importing to NIRS-SPM and if so, if they might be able to help.

Specifically, following the conversion option and after specifying that the data are from "HomER Software" I select the .nirs file and am then asked to import a .mat file, which according to the available protocol, comes from exporting Hb concentrations through 'delta Concentrations' in the  'Data Display Controls' menu.  My suspicion is that this description is based on an older version of HomER/EasyNIRS and that this option no longer exists in Homer2.  This .mat file is to contain the Hb concentrations, so is presumably what is exported through the export HRF option.  I tried loading a .nirs file and them writing a .mat file with procResult.dcAvg, but receive an error that the .mat file should be binary.  NIRS-SPM doesn't accept .txt or .csv.

Any direction would be greatly appreciated.

Cheers,
Drew