[Homer-users] Release of Homer2 versus 1.5

[David Boas]

For those who aren't using the developers version of Homer2 via the CVS 
repository, we have finally compiled an updated release of Homer2. The 
exe and m-file packages are available through our web site at
     http://www.nmr.mgh.harvard.edu/DOT/resources/homer2/download.htm

Here are the release notes

Homer 2 Version 1.5
==============
-- Added feature to load .nirs group file set from subject sub folders. 
This means that instead of naming files of one subject with the same 
prefix you can place them in separate sub-folders. Both ways can be now 
used to distinguish files of one subject from another.

-- Implemented new motion correction algorithms based on recent 
publications (Wavelet, Spline, CBSI):

hmrMotionCorrectionSpline()
Adapted from Scholkmann, F., Spichtig, S., Muehlemann, T.,& Wolf, M. 
(2010). How to detect and reduce movement artifacts in near-infrared 
imaging using moving standard deviation and spline interpolation. 
Physiological measurement, 31(5), 649-662.

hmrMotionCorrect_Wavelet()
Adapted from Molavi, B.,& Dumont, G. A. (2012). Wavelet-based motion 
artifact removal for functional near-infrared spectroscopy. 
Physiological measurement, 33(2), 259-270.

hmrMotionCorrect_Cbsi()
Adapted from Cui, X., Bray, S.,& Reiss, A.L. (2010). Functional near 
infrared spectroscopy (NIRS) signal improvement based on negative 
correlation between oxygenated and deoxygenated hemoglobin dynamics. 
Neuroimage, 49(4), 3039-3046.

-- Improved the consistency of displaying, adding and editing multiple 
stim conditions across subjects. Also renaming conditions can now be 
done for a single run (file) or the whole group.

-- Standardized the spatial units in the SD structure. Homer now 
requires spatial units of millimeters, too be consistent with the 
upcoming tool AtlasViewerGUI. The units previously were centimeters. 
This only impacts the source and detector positions defined in the SD 
structure.

-- Various small bug fixes and enhancements in the areas of
a) HRF Export.
b) Detection, reporting and fixing of errors in the .nirs format when 
loading group files.
c) Deconvolution (short sep)
d) Handling of more than 2 wavelengths in OD-to-Concentration conversion.