Version 1.0 of NUTMEG has been released! After downloading, please consider joining our mailing list for discussion and tips on using NUTMEG. Send a message to listserv@itssrv1.ucsf.edu containing only the words subscribe nutmeg. (Windows users, please note that older versions of WinZip can corrupt the extracted files, preventing MATLAB from successfully loading NUTMEG.)
We are continually updating NUTMEG and are currently working on version 2.0. If you are interested in trying a beta-quality development version, you can download it below. Note that this will contain many unfinished features, some offensive comments, and probably a few major bugs. Data formats may evolve until we release the final version of 2.0, meaning saved work may have to be converted if variable names change. UCSF users can always get the latest development version via CVS. What you can look forward to are time-frequency analyses, improved spatial normalization and across-subjects statistics, and new denoising algorithms.
We have repackaged SPM2 with mex files compiled to run on Matlab for Intel Macs and 64-bit Intel Linux... this should allow NUTMEG to run smoothly on these computers, though note that other SPM2 features have not been tested. Download it here.
For help on using NUTMEG, check out our attempt at documentation. Some tips on time-frequency analysis using the 2.0b1 version are available here.
NUTMEG runs on MATLAB 7.x and requires SPM2. Note that, as of MATLAB 7.2 (2006a), OS-wide language settings may affect the behavior of fread for characters; this can cause unpredictable results when importing raw data. For example, in Linux, setting the LANG environment variable to "en_US.UTF-8" should work properly for American English. However, Japanese and other Asian languages may be problematic.
Graphical VOI selection currently requires MATLAB's image processing toolbox and filtering functions require the signal processing toolbox, but NUTMEG is quite usable without either. Data from CTF, KIT/Yokogawa, and 37/74-channel BTi Magnes systems can currently be imported.
This article may be found here, at the University of California's eScholarship Repository, or from PubMed Central. A copy of the Biomag2004 poster with a description of NUTMEG's capabilities and screenshots is available here (~3MB).