Multitask electrical stimulation for cortical language mapping: Hints for necessity and economic mode of application

Purpose:  Electrical stimulation mapping (ESM) is the gold standard for identifying language‐relevant cortex prior to neurosurgical resections near the eloquent cortex. However, its application mode is not standardized, as some procedures rely on a single task, whereas others depend on task batteries. In this study, we examine whether multitask ESM is necessary, quantify the information loss that occurs from restricting the number of applied tasks, and search for a procedure that allows for time‐efficient, multitask ESM.