Hi Susanne
maybe tSNR in ROI showing activations vs those that do not? but a t value is some sort of SNR already ..
this function https://github.com/CPernet/spmup/blob/master/spmup_temporalSNR.m take
time series and masks as input, so it should do the trick for full brain and ROI --> multiple ROI mask by the spm segmented images GM and maybe WM and input those (I never tried but should work, let me know if you try)
cyril
Dear experts,
A reviewer asked whether there is enough signal to noise in our fMRI task with a X number of trials per condition.
Given the ambiguous use of (t) signal-to-noise / contrast-to-noise ratio definitions for task related fMRI design and their dependence on scanning parameters, I am unsure which approach to choose. Would you calculate several mean tSNR on a single subject level
to demonstrate stable results?
Sorry for the possibly very basic question.
Thanks so much,
Susanne
The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.
