Dear all
We have found a bug that could affect the results of some
analyses. Most analyses should be valid but please,
1- download the updates on the web to insure validity of further analyses
(http://www.fil.ion.ucl.ac.uk/spm/spm99.html)
2- read the following to make sure that your old analyses are OK.
The bug could affect analyses with these specific combinations :
1-designs where the number of parameter is greater than
half the number of scans,
2- AND when there is a limited number of scans in the analysis
(roughly 160 if you haven't edited the maxMem parameter in
spm_spm.m. If you have, compute sqrt(maxMem/8/5) : the analysis
is OK if the number of scans entered is greater than this number).
To check whether you should be re-analysing (estimation part),
use the little m-file attached. I apologize for the possible
(great) inconvenience.
JB
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| Jean-Baptiste Poline [log in to unmask] |
| 4 Pl General Leclerc |
| CEA/DRM/SHFJ Tel +33 (0) 1 69 86 78 52 |
| 91406 ORSAY FRANCE Fax +33 (0) 1 69 86 78 68 |
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