PowerPoint Presentation - Activation Delays in FMRI: Estimation and Variability

7/2/2004 SSCC/NIMH 43

Results: Volume à Surface

•Demo:

HRun the script: ./run_3dVol2Surf

HThe output: out_Del.1D.dset is tabulated below:

•Why did we insist on having an output for every node, although we have data on a just a few ?

•This file format (1D) is simple to understand however it is not efficient for reading and writing large files.

HNIML Format that allows for faster I/O will be in use next.

•In some cases, the output file is larger than the limit of 2GB on most current systems. You can get around this limitation by writing the output file in chunks using the options -first_node and -last_node.