PC and Mac sharing?
In case you ever need this feature, it is possible! And it is fairly easy to set up. This tutorial will tell you how to connect to shared volumes on your Mac from a PC on the same network.
June 30, 2005
June 20, 2005
Test
New Blog.
Testing...
June 10, 2005
FUNDING... SOME USEFUL URLS
"Of course our work is about human betterment and mercy... but there can be no mercy without money. And recognizing that is why, perhaps, we run the only profitable Level IV trauma facility in the Western World." ----Sister John Mary Francis O.F.M.
No comment on my part. Below however, are list of links to funding resources that i have categorized for our usage in the never ending quest for ducets.
May 19, 2005
Sample tcl Scripts
This script is a template for a FEAT design.fsf file. When you run the script it replaces the subject's name everywhere in the design file and creates a new one. Download DesignTemplate.tcl
This script takes a FEAT design.fsf file and creates a template file from it (as illustrated above)Download makeTemplatefromDesign .sh
This script takes the output of featquery from several subjects and puts them together in one Excel file, along with the average and standard deviation. This greatly speeds up the path from analysis to a nice pretty graph. Download makeExcelFile .tcl
May 12, 2005
Tools update on miles
Some of the tools we currently have installed on miles change frequently enough that we needed to create a script to automatically update them (for now, once a week). This will ensure that the cluster users run the latest available versions, but will remove the need for manual downloads/updates.
The tools that are currently automatically updated - UCLATools and AFNI, are both available for download so it was relatively easy to script updates using 'wget'. 'wget' is available on miles as a part of fink distributed tools (/sw/bin/wget). The script that handles the updates can be found at /Volumes/local/Updates/Tools_wget.sh and the crontab file with scheduling command is /Volumes/local/Updates/crontab.tools_update.
This script is running as a user (me) cron job. The difference between scheduling task using system cron (executed by root) and user cron, is that users' crontab files cannot be edited directly. When editing system crontab file, simply open /etc/crontab file in an editor (as root). However, if tasks need to be added to users' cron, create a separate file (in this case crontab.tools_update), schedule tasks, and then execute 'crontab crontab.tools_update' command to add the commands to the users' crontab file. To make sure that they have been added, type 'crontab -l' and the crontab file will be listed. To find out more about scheduling tasks on os x see Scheduling Tasks in Panther.
April 20, 2005
INTERPRETING THE RESULTS OF MELODIC
1. Melodic identifies groups of voxels that are temporally correlated.
2. These are called Components
3. The Output of Melodic displays these various components
Note: The following Picture shows a particular component identified by Melodic
The following Graph charts the timecourse of the component identified by Melodic
The following Graph charts the "Fourier Transform" of the timecourse that was previously identified by Melodic
The task of the researcher is to examine the spatial distribution and/or timecourse of each component to determine whether it is meaningful to the data analysis.
FOR EXAMPLE: Based on the spatial distribution of the component around the edges of the brain, the following Melodic Report, suggests that this component is possibly motion artifact..
The numbers on the Y axis represent the change of voxel intensity compared to baseline....the X axis represents the time line increments.
Generally speaking, if the activation occurs around the edge of the brain or around the ventricles, it is reasonable to presume that it could be motion artefact because any small motion at a border can result in large fluctuations in intensity.
April 10, 2005
Fitting an hrf to your data
Read about it here.