Patent ID: 8088076

Claim:
A method for monitoring the response of a nervous system of a body to a sensory stimulus, said method comprising: providing a plurality of electrodes on a surface of the body and passing current between selected areas of the surface of the body by passing current between at least one pair of electrodes of said plurality of electrodes, said current being provided by a current source external to said body; and collecting a set of voltage measurements between selected ones of said plurality of electrodes while said current is passing between said at least one pair of electrodes; wherein the set of voltage measurements is collected over a predetermined measurement period, the predetermined measurement period is initiated after a predetermined delay based upon a neurological model following occurrence of the sensory stimulus, and the collected voltage measurements are compared with reference measurements to determine normal or abnormal response of the nervous system, the sensory stimulus comprises a series of second stimuli, a set of voltage measurements is collected during current injection periods initiated after application of each second stimulus, the collection of voltage measurements related to each second stimulus is initiated at a time delay relative to the respective second stimulus, and the time delay differs for each second stimulus, and differences between collected sets of voltage measurements are interpreted as representing changes in nervous system activity over the time difference between the respective time delays.