“…Furthermore, this study also expands previous work by measuring clinically relevant variables in longer surgical tasks, assessing learning curve data by repeating the same surgical task on different days to evaluate changes in performance over time, and evaluating the effect of coaching on improving surgical performance [12,13]. In non-neurosurgical simulations, coaching and repeated trials has been shown to improve outcomes and decrease operative error [20,21]. Identification of similar findings for brain surgery simulators would help to promote the use of these simulators as a training tool.…”