question about more details for the FC behavior correlation

Submitted by jane on Sat, 10/19/2013 - 00:46

Hi,

I chosed a seed and finished the funcational connectivity with the whole brain. And then how to do the correlation between the altered  funcational connectivity and the behavior data?
Thanks!

Jane

Thu, 10/17/2013 - 02:18 — ZHANG_RESTadmin

Re: FC behavior correlation

 You can use SPM "multiple regressions", or use REST "correlation analysis" to do this.

Thu, 10/17/2013 - 13:03 — jane

Re: FC behavior correlation

Thank you for the reply. But I am still confused. Use the zMap ? Every subject has one zMap, which contains the whole brain functional connectivities. what I need is only one functional connectivity of them. So how can I know that the connectivity I am interested in was correlated with the behavior data?

Thanks!

Jane

Submitted by ZHANG_RESTadmin on Sat, 10/19/2013 - 18:39

 yes everyone has a zmap for FC.  You need to perform correlation analysis between zFC in each voxel and behaviour data. 
You can confine such correlation analyses within a mask in which all voxels have a significant FC.  To do this, you may need a one-sample t test to define significant FC and then form the mask. This mask is then entered the following correlation analysis.