Fig. 5: Average receiver operating characteristic curve (ROC) for predicting behavioural outcome from spatial maps.
From: A framework for focal and connectomic mapping of transiently disrupted brain function
The performance of a simple classifier of the behaviour based on an SPM map (red) or an ROI map (blue), both derived from held-out data, is presented as the average of the ROC curves from 100 bootstraps of the test set. The standard deviation (± 1 SD) are plotted in shaded colours. Predictive performance was superior with the SPM map for all behaviours. Note the purpose of this analysis is not to craft an optimal behavioural classifier based on stimulation data but to quantify the comparative value of SPM vs ROI-based maps in providing spatial priors for downstream individual-level localisation.
