Cardiac arrest is a leading cause of death worldwide, but modern medicine is now able to rescue many people. However, although cardiac function can often be restored, the critical question is whether brain function also recovers. Many interventions are currently being tested to maximize recovery, but methods are needed to assess brain function. We are collaborating with several researchers across many disciplines (emergency medicine, cardiology, surgery, neurology) to develop tools to monitor cerebral recovery with quantitative analysis of EEG and evoked potentials. We are currently developing these tools in swine and rodent models of cardiac arrest, and implementing them in humans.