1. A method of modulating a patient'neurological disease state, the method comprising: sensing at least one neurological signal from the patient; processing the at least one neurological signal using a disease state processor to estimate the neurological disease state; generating a therapy output, wherein the generated therapy output is a function of the estimated neurological disease state; delivering the therapy output to the patient; and communicating the estimated neurological disease state to the patient using a patient interface module external to the patient's body.