Strange error with Time-frequency map

Discussions
1

hello,

I came across a weird error when calculating time-frequency map.
I calculated TF map twice for one run of one subject. The parameters were all the same, but the results were totally different.

The first one calculated half a month ago looks good and fits my study design(top), but the second one calculated today was absolutely abnormal(bottom).

And I also calculated for other subjects, the results are similar to the abnormal one(bottom).

Anything wrong with my software or computer? (I've just updated to latest version of Brainstorm)

スクリーンショット 2024-07-18 10.46.16
スクリーンショット 2024-07-18 10.46.161570×1540 170 KB

2

One of the first things i'm noticing is that the scale of both pictures is different. The colorbar of the first image runs to 8*10^-29 and the second picture runs to 3*10^-29. Could it be that by using smoothing and a different colorbar you would get closer to the first?

3

Thank you for your reply.
I've already applied smoothing on these two. And the colorbar doesn't work, either.

5

Could it be that some pre-processing in the data was different, thus their TF decomposition?