help > RE: Calculating an overall network connectivity score based on individual ROi-to-ROI z-scores (subject level)
Sep 11, 2023  09:09 PM | Alfonso Nieto-Castanon - Boston University
RE: Calculating an overall network connectivity score based on individual ROi-to-ROI z-scores (subject level)

Dear Reka,


Yes, computing the average of those 21 Fisher-transformed connectivity values is a perfectly reasonable/meaningful marker of within-network connectivity (see for example conn_withinbetweenROItest.m for a similar computation/analysis)


Best


Alfonso


Originally posted by Réka Borbás:



Dear Alfonso and conn users,

Using a ROI-to-ROI approach, is it meaningful to calculate an overall network connectivity score based on the individual ROI-to-ROI fiher-z scores? 

To be more specific: 
I have a network of 7 ROIs (defined by me). For each subject I have 21 fisher-z transformed correlation scores representing all possible connections within the network. If I calculate the average of these 21 scores per subject, can it be a meaningful marker of overall network connectivity? 

Thank you in advance,
Réka



 

Threaded View

TitleAuthorDate
Réka Borbás Aug 22, 2023
RE: Calculating an overall network connectivity score based on individual ROi-to-ROI z-scores (subject level)
Alfonso Nieto-Castanon Sep 11, 2023
Michela Leocadi Nov 21, 2024