We developed Micro SAINT computational networks for numerical integration and solving initial value problems for linear and nonlinear first- and second-order ordinary differential equations, as well as for systems of differential equations. These Micro SAINT computer programs are written with a user friendly approach where the user will be required to supply the input information and the functional form(s) of the function(s) in the function library section of Micro SAINT without any changes in the main programs. These computational modules could be used as subnetworks in modeling psychophysiological and biomedical problems of interest in naval aerospace medical research. For example, Micro SAINT developed models can be used by staff medical officers to predict psychophysiological performance of naval aircrew personnel under sustained operational work schedules. (KR).