Dear Dr. Christian Gaser and all SPMers,
I am so appreciated if anyone could shed me light.
I used the TFCE toolbox for SPM 12 on an ANOVA analysis and faced two
confusions:
1. After running 'Estimate TFCE', the toolbox generated the file of
TFCE_log_pFWE_0001.
I found they did not cover the whole brain (just a small area shows
results while other parts of the brain are black), though my analysis
went
over the whole brain as well as the data.
I understand it should first cover the whole brain, and then a
significant map would be generated by a threhold of 0.05.
2.
I surprisedly found that there were large areas showing negative
values (constant -0.00043) in the file TFCE_log_pFDR_0001.
It should not show neg. values for this.
Could you please give me some explainations?
Thanks a lot!
--
Zhijiang Wang, Ph.D.,
Peking University Institute of Mental Health
Peking University Sixth Hospital
National Center for Mental Health, China CDC
No.51, Huayuanbeilu Rd, Haidian District,
Beijing 100191, P.R. CHINA
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