Ever wondered if your interesting brain-behavior correlation was somehow impacted by head motion, but were afraid to ask? We’ve created a motion impact score for detecting spurious brain-behavior associations. (Preprint cross-posted from Twitter.) https://biorxiv.org/cgi/content/short/2022.12.16.520797v1
Our motivation for creating the motion impact score came from the realization that lots of behavioral traits (87% in the ABCD study) are, surprisingly, correlated with head motion. Even seemingly unrelated traits like matrix reasoning score were correlated with motion.
@ScienceBenKay very cool work, but as someone who works with movement disorders and ADHD, I'd say not surprising.
@kjbinstl, I'm a big fan of your work on attention and movement disorders! Part of the motivation for this was to see whether we could look at ADHD in the ABCD study without our findings getting lost in spurious motion artifact. (You can, with motion censoring at FD < 0.2 mm.) Would love to try our code on more motion-enriched data sets if you are interested in collaborating!
@ScienceBenKay cool. Let's talk maybe next week? Not sure we have data you don't but happy to try.
