I would like to reveal the transition of coherence between pre- and post-operation in one patient with epilepsy. I’ve recorded resting state row data at pre and post operation (1000Hz; sampling ratio). After the pre-processing, I could get 20 epoch data (3.5s each epoch) in each condition. For calculating the coherence of each epoch, I’ve done the process as below,
- I selected one scout.
- I calculated the coherence [1×N] at each epoch. (Process options: scout function:Max, After) (Max freq is 1Hz, Highest Freq is 100Hz, Metric significativity is <0.01)
Next, I’m going to compare these coherence data between conditions. What I want to know is where, what frequency band coherence value is increased or decreased.
How should I compare these coherence data between pre- and post? As far as I know, there is no tutorial related to comparing the coherence or Time-frequency data. Could you give me some advise?