1. A system for controlling an entity in response to activity in a peripheral nerve comprising a plurality of fascicles comprising: a multicontact electrode assembly configured to record activity from the peripheral nerve; a processing component comprising: a sensor mapping component configured to quantify activity associated with a proper subset of the plurality of fascicles; an evaluation component configured to determine an adjustment of the status of the controlled entity from the quantified activity of the proper subset of the plurality of fascicles; and a controller configured to provide a control signal, representing the adjustment of the status of the controlled entity, to the controlled entity.