Embodiments of the invention relate to a method and apparatus for a zero voltage processor sleep state. That data is provided as factors for passive authenticating the user for access to a device andor a resource. In such circumstances, a user may be enabled to analyze an electrophysiological map of a patient’s brain and, at the same time or within a short time period before or after the mapping process, may be enabled to apply ablation energy for treatment of a central nervous system disorder.