Dear Prof. Gaser,
Your toolbox TFCE is very convenient to use in SPM. However, I am not clear on how to report the results after TFCE correction.
1) After TFCE estimation, your toolbox also asks for the choice to correct multiple comparisons. In that case, should we report the result as p<0.001 uncorrected, TFCE-estimated, or p<0.05, FDR corrected, TFCE-estimated?
However, I saw that some papers (including DTI, T1 and fMRI studies) only reported as p<0.01 (TFCE-corrected), but did not indicate multiple comparison way. Is this an acceptable way to report for publication?
2) after using your TFCE toolbox to show the results, in the whole brain p-value report (SPM-Graphics), there is a TFCE column, the values like 394.50, etc for each peak voxel. What is the meaning of that column? Shall we report that in the Tables?
3) also in that report, no p-value is provided for each supra-threshold cluster. Should we understand that as each supra-threshold cluster's p < the value that we set for multiple comparison correction (e.g uncorrected p<0.001, FDR<0.05, etc)?
Many thanks!
Best regards,
Haobo Zhang
Lecturer
School of Psychology and Sociology
Shenzhen University
China
|