Robust spatial extent inference in R using the "pbj" package

Date: 
August 19, 2020
Time: 
3:00 - 4:00pm
Place: 
Zoom meeting

Spatial extent inference (SEI) is widely used across neuroimaging modalities to study brain-behavior associations that inform our understanding of disease. Recent studies have shown that Gaussian random field (GRF) based tools can have hugely inflated family-wise error rates (FWERs).  We developed a semiparametric bootstrap joint (sPBJ) testing procedure to address the limitations of available methods; our approach is the image equivalent of a robust sandwich covariance estimator and yields consistent estimates of standard errors, even under model misspecification.