Marcus Watson

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Three experiments explored the effectiveness of continuous auditory displays, or sonifications, for conveying information about a simulated anesthetized patient's respiration. Experiment 1 established an effective respiratory sonification. Experiment 2 showed an effect of expertise in the use of respiratory sonification and revealed that some apparent(More)
OBJECTIVE We explore whether ecological interface design (EID) principles can be applied to the design of an auditory display for anesthesia monitoring. BACKGROUND EID examples focus almost exclusively on visual displays. In the anesthesia work environment, however, auditory displays may provide better individual and team awareness of patient state. (More)
We have proposed an extension of Ecological Interface Design (EID) to encompass the design of auditory displays. Our analysis shows that EID can succeed in this task if all stages of Cognitive Work Analysis (CWA) are employed and if an extra “attentional mapping” stage is added, which maps the attentional need of the human operators. A review of auditory(More)
BACKGROUND Previous studies have demonstrated the construct validity of virtual reality colonoscopy simulators by showing that they can distinguish between users according to their level of endoscopic experience. Although physical model simulators are known to simulate looping more realistically than these devices, they lack published validation evidence.(More)
BACKGROUND No useful comparative data exist on the relative realism of commercially available devices for simulating colonoscopy. OBJECTIVES To develop an instrument for quantifying realism and provide the first wide-ranging empiric comparison. DESIGN Repeated measures, observational study. Nineteen experienced colonoscopists completed cases on 4(More)
The goal of this paper is to illustrate the potential use of Ecological Interface Design (EID), with an additional attentional mapping step, to design sonifications for complex real time systems. EID aims to support the human operator’s reasoning at different levels of abstraction, so that an interface maps physical functions and measurement to higher order(More)
Three experiments explored the effectiveness of continuous auditory displays, or "sonifications", for conveying information about an anesthetized patient's respiratory state. Experiment 1 established aneffective respiratory sonification. Experiment 2 showed an effect of expertise in using respiratory sonfication and revealed that some apparent differences(More)
We examined the effect of no music, classical music or rock music on simulated patient monitoring. Twenty-four non-anaesthetist participants with high or low levels of musical training were trained to monitor visual and auditory displays of patients' vital signs. In nine anaesthesia test scenarios, participants were asked every 50-70 s whether one of five(More)
We reviewed the use of advanced display technologies for monitoring in anesthesia. Researchers are investigating displays that integrate information and that, in some cases, also deliver the results continuously to the anesthesiologist. Integrated visual displays reveal higher-order properties of patient state and speed in responding to events, but their(More)
We discuss the phenomenon of system tailoring in the context of data from an observational study of anaesthesia. We found that anaesthetists tailor their monitoring equipment so that the auditory alarms are more informative. However, the occurrence of tailoring by anaesthetists in the operating theatre was infrequent, even though the flexibility to tailor(More)