See John Ashburner's recent message about this issue:
http://www.mailbase.ac.uk/lists/spm/1999-06/0058.html
basically the story is that images are being written by matlab routines
in SPM99b rather than compiled MEX files, which slows things down. This
was done to allow flexibility for writing to different image formats.
My 2 cents: I am willing to sacrifice flexibility for speed (especially
given how big the differential seems to be), and I would suggest that
these routines be replaced with MEX files in the final release of SPM99.
best,
russ
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Russ Poldrack Phone: (650) 725-0797
Dept. of Psychology Fax: (650) 725-5699
Stanford University
Jordan Hall Email: [log in to unmask]
Stanford, CA 94305 Web Page: http://www-psych.stanford.edu/~poldrack/
After August 1, 1999:
MGH-NMR Center
Building 149, 13th St.
Charlestown, MA 02129
Email: [log in to unmask]
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