Patent ID: 8064993

Claim:
A method for assessing physiological signal reactivity of a subject, the method comprising the steps of: receiving physiological signal data obtained from a subject in a control unit; storing the received physiological signal data in a database of the control unit; applying a single time reference to the physiological signal data corresponding to a stimulus supplied to the subject; aligning the physiological signal data temporally with the time reference; deriving a first set of values in the control unit for a first measure indicative of irregularity in the physiological signal data occurring before the time reference in the time domain, the first set including at least one value of the first measure; producing a second set of values in the control unit for the first measure, the second set being subsequent to the first set and after the time reference in the time domain, the second set including at least one value of the first measure; and determining in the control unit, based on a comparison between the first set and the second set, whether reactivity is present in the physiological signal data.