An exemplary method for monitoring neonate brain function includes processing electroencephalographic data of the neonate to calculate at least one measure, the at least one measure including a non-linear measure, comparing the calculated at least one measure against at least one baseline threshold, wherein the at least one baseline threshold corresponds to a neonate age range, and outputting a result of the comparison. An exemplary system for monitoring neonate brain function includes a computing device for processing electroencephalographic data of the neonate to calculate at least one measure, the at least one measure including a non-linear measure, and for comparing the calculated at least one measure against at least one baseline threshold, wherein the at least one baseline threshold corresponds to a neonate age range, and a display for displaying a result of the comparison.