%0 Journal Article %@ 2561-326X %I JMIR Publications %V 7 %N %P e37269 %T An Emerging Screening Method for Interrogating Human Brain Function: Tutorial %A Sudre,Gustavo %A Bagić,Anto I %A Becker,James T %A Ford,John P %+ Brain FIT Imaging, LLC, 141 Main Street, Unadilla, NY, 13849, United States, 1 607 435 0930, gsudre@brainfitimaging.com %K screening %K brain function %K cognition %K magnetoencephalography %K MEG %K neuroimaging %K tutorial %K tool %K cognitive test %K neuroimaging %K signal %K cognitive function %D 2023 %7 27.4.2023 %9 Tutorial %J JMIR Form Res %G English %X Cognitive decline can be observed due to a myriad of causes. Clinicians would benefit from a noninvasive quantitative tool to screen and monitor brain function based on direct measures of neural features. In this study, we used neuroimaging data from magnetoencephalography (with a whole-head Elekta Neuromag 306 sensor system) to derive a set of features that strongly correlate with brain function. We propose that simple signal characteristics related to peak variability, timing, and abundance can be used by clinicians as a screening tool to investigate cognitive function in at-risk individuals. Using a minimalistic set of features, we were able to perfectly distinguish between participants with normative and nonnormative brain function, and we were also able to successfully predict participants’ Mini-Mental Test score (r=0.99; P<.001; mean absolute error=0.413). This set of features can be easily visualized in an analog fashion, providing clinicians with several graded measurements (in comparison to a single binary diagnostic tool) that can be used for screening and monitoring cognitive decline. %M 37103988 %R 10.2196/37269 %U https://formative.jmir.org/2023/1/e37269 %U https://doi.org/10.2196/37269 %U http://www.ncbi.nlm.nih.gov/pubmed/37103988