MTM

(Multi-Taper Methods)

21-Dec-2001 beta version GUI

Preliminaries

Download the latest software in a compressed tar from: ftp://ftp.cmrr.umn.edu/pub/mtm

Under UNIX, unpack the code in some directory, for example in /usr/local/mtm

   # cd /usr/local
   # zcat  mtm_beta_21Dec2001.tar.Z | tar xvf -
   # ln -s /usr/local/mtm_beta_21Dec2001 /usr/local/mtm

Invoke the program
   # matlab
   >> addpath( '/usr/local/mtm' )
   >> mtm

For intro to multitaper analysis see:

P. Mitra and B. Pesaran,
"Analysis of Dynamic Brain Imaging Data"
Biophys.J.1999 76:691-708

Wayne M. King, John P. Strupp, Partha P. Mitra, and Kamil Urgubil
"An Introduction to Multitaper Spectral Analysis for fMRI Data"
In work

The main MTM (Multi-Taper Methods) window has a set of button which when pressed will popup a processing GUI (graphical user interface). These buttons are layed out vertically in the typical order in which they should be run.

There are four major processing sections:

Data-input
- Diary (record)
  Popup diary control GUI.
- Workspace (globals)
  Popup global GUI.
- Load Data (loadIt)
  Popup Load Data GUI.
- Threshold (imgRng)
  Popup image range GUI.
Exploratory
- Cine (cineIt)
  Generate and Show a movie of data.
- Mass Center (massCtr)
  Calculate and display the center of mass.
- Variance (std_dev)
  Calculate and display the variance over time.
- Physiologic (physioShow)
  Popup to load and display physiologic waveforms
- Time SVD (timeSVD)
  Popup to perform a Time-Space SVD
- Freq SVD (freqSVD)
  Popup to perform a Freq-Space SVD
Pre-processing
- Detrend (runline)
  Popup to perform running linear regression detrending.
- Denoise (physioCorr)
  Popup to perform physiologic noise removal.
Confirmatory
- T-test (tTest)
  Popup to calculate t-Test map.
- Cross Corr (xcr)
  Popup to calculate Cross correlation map.
- Freq F-test (freqFtest)
  Popup to calculate a Frequency F-test map.
- Overlay (map_cmp)
  Popup to compare map overlays.

The fMRI data set used is courtesy of Josef Pfeuffer

TR = 0.125 sec per vol
120 control + (16 * (16 stim , 128 control)) + 40

/home/raid145/ku_grp/pfeuffer/jp10627a/51_dft1.sdt
/archive/local/ku/pfeuffer/backup_27Jun2001/jp10627a/06270001.acq
/archive/local/ku/pfeuffer/backup_27Jun2001/jp10627a/51.fid