ANXIETY METER

摘要

Methods and systems for detection of anxiety using physiological signals. The detection of anxiety may take place in real-time and in a naturalistic setting. A modified Kalman filter may be used.

主权项

1. A system for detection of anxiety in a subject, the system comprising:
a processor configured to:
receive at least one physiological signal that is relevant to a measurement of anxiety;extract at least one feature from the at least one physiological signal, wherein the at least one extracted feature has a value that is affected by the subject's anxiety level;process the at least one extracted feature using a modified Kalman filter, the modified Kalman filter being modified to update a state model using a first weighting of the at least one extracted feature when the at least one extracted feature has a value within a predicted noise model, and to update the state model using a second weighting of the at least one extracted feature when the at least one extracted feature has a value outside of the predicted noise model, the second weighting being less than the first weighting; andprovide one or more output signals indicating presence of anxiety when the at least one extracted feature has a value outside of the predicted noise model.