About the statistical analysis of coherence

Discussions
1

Hello,

I’m calculating the “test against baseline” of N×N imaginary coherence (the 68-scout Densikan-Killany atlas was used for N×N coherence). For the statistical settings, I used Bonferroni correction, and I checked signals, time, and frequency for “control over dims”. Frequency range was “78: 2: 92”. The time window was (-4.0000s, 4.0000s), and the baseline was (-4.0000s, -2.0005s).

I want to know how many time points, frequencies, and regions/edges were included in the correction. Can I get those information in the Matlab files?

Looking forward to your reply!

2

You can check this in the GUI, by opening the statistics matrix, then when you check/uncheck dimensions for the Bonferroni correction, a message is displayed in the Matlab command window, showing the number of repeated tests that are considered, and the corrected p-value threshold (or the average if there are multiple corrected p-thresholds, when not all the dimensions are selected):

BST> Average corrected p-threshold: 5.0549e-07  (Bonferroni, Ntests=98914)

https://neuroimage.usc.edu/brainstorm/Tutorials/Statistics#Correction_for_multiple_comparisons