help > Negative connectivity-behavior correlations
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Aug 29, 2015  12:08 PM | Darren Yeo
Negative connectivity-behavior correlations
Hi everyone,

I am working on a seed-based resting-state analysis, particularly focusing on the relationship between intrinsic connectivity of seed ROIs and a behavioral measure. I was wondering if anyone has experience interpreting negative connectivity-behavior correlations.

Firstly, if for instance, I found that connectivity between seed A and region X is negatively correlated to a behavioral measure, is the appropriate next step to run an analysis without the behavioral measure and mask it with region X to examine the direction of intrinsic connectivity between the seed A and region X (because the intrinsic connectivity could a positive correlation or anticorrelation)?

Then this leads me to the next question: As I obtained several negative connectivity-behavior relationships for my seed ROIs, I was wondering if the strength of connectivity is primarily interpreted uni-directionally (i.e., stronger connectivity always means positive connectivity, and anticorrelations are not meaningfully interpreted) or bi-directionally (i.e., stronger connectivity could imply stronger positive connectivity or stronger anticorrelations). So, which is more appropriate -  "The greater the negative intrinsic connectivity between seed A and region X, the greater the behavior score" or the lower the intrinsic (positive) connectivity between seed A and region X, the greater the behavior score"? - or are both acceptable ways to interpret such negative connectivity-behavior correlations?

Thanks!

Best,
Darren
Sep 12, 2019  10:09 AM | Kulpreet Cheema - University of Alberta
RE: Negative connectivity-behavior correlations
Hi Darren, I have similar questions regarding the negative connectivity-behavior correlations, did you get any answers to this? 

Thanks!