title: A delayed functional observer/predictor with bounded-error for depth of hypnosis monitoring.
abstract: With the motivation of providing safety for a patient under anesthesia, this paper suggests conditions for evaluating the correctness of an available user interface for systems under shared control based on observability and predictability requirements. Situation awareness is necessary for the user to make correct decisions about the inputs. In this article, we develop a technique to investigate the conditions under which an anesthetists can attain situation awareness about a limited but important aspect of anesthesia, namely depth of hypnosis (DOH). Furthermore, we consider that, in practice, to attain situation awareness, the estimation of the task states does not necessarily need to be precise but can be bounded within certain margins. Hence, attaining situation awareness about DOH is modeled as a bounded-error delayed functional observation/prediction. Unless such an observer/predictor exists for a system with a given user-interface, the safety of the operation may be compromised. The suggested technique proves that, in order to provide safety for the patient under anesthesia, it is necessary for the anesthetist to have access to the predictive information from a clinical decision support system.
authors: Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, Canada. nedae@ece.ubc.ca.
authors: Neda
authors: http://orcid.org/0000-0002-7335-557X
authors: N
authors: Eskandari
authors: Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, Canada.
authors: Z Jane
authors: ZJ
authors: Wang
authors: Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, Canada.
authors: Guy A
authors: GA
authors: Dumont
mesh_terms: D000465:Algorithms; D000768:Anesthesia, General / Q000379:methods*; D000776:Anesthesiology / Q000379:methods; D020000:Decision Support Systems, Clinical; D006801:Humans; D006990:Hypnosis; D007858:Learning; D008962:Models, Theoretical; D016343:Monitoring, Intraoperative / Q000379:methods*; D015203:Reproducibility of Results; D014584:User-Computer Interface
keywords: Bounded-error; Delayed estimator; Functional estimator; Situation-awareness; User-modeling