Abstract: Disclosed in one embodiment is a multimodal neuromonitoring system for providing clinicians with measures of important higher order, clinically relevant neurophysiological functions by combining the output of multiple medical devices each of which provides a measure of a more basic neurophysiological function. Also disclosed are electronic displays that present clinically meaningful relationships between various physical and chemical measurements of brain function, and a process for calculating when a patient's current neurophysiological state is different from a nominal “healthy” neurophysiological state.