The stress and workload of virtual reality training: the effects of presence, immersion and flow.

The present investigation evaluated the effects of virtual reality (VR) training on the performance, perceived workload and stress response to a live training exercise in a sample of Soldiers. We also examined the relationship between the perceptions of that same VR as measured by engagement, immersion, presence, flow, perceived utility and ease of use with the performance, workload and stress reported on the live training task. To a degree, these latter relationships were moderated by task performance, as measured by binary (Go/No-Go) ratings. Participants who reported positive VR experiences also tended to experience lower stress and lower workload when performing the live version of the task. Thus, VR training regimens may be efficacious for mitigating the stress and workload associated with criterion tasks, thereby reducing the ultimate likelihood of real-world performance failure. Practitioner Summary: VR provides opportunities for training in artificial worlds comprised of highly realistic features. Our virtual room clearing scenario facilitated the integration of Training and Readiness objectives and satisfied training doctrine obligations in a compelling engaging experience for both novice and experienced trainees.

Prospective study of telephone consultation and communication in pediatric infectious diseases.

BACKGROUND: Subspecialists are often called on to provide informal or "curbside" telephone consultation. There is limited documentation of the time spent on, content, nature and source of such consultations by pediatric infectious disease (PID) specialists. Nursing staff frequently assist physicians by triaging telephone calls. No previous studies have examined this aspect of their role in subspecialty practice. METHODS: We prospectively recorded all telephone calls to a newly established PID program for 1 year. Results were entered into a database and analyzed using the ABSTAT software. RESULTS: A total of 621 calls were received by the PID specialist and 1,260 by the PID nurse from March 1, 1999, through February 29, 2000. The mean number of calls per month was 51.8 +/- 24.8 for the physician and 105 +/- 43.3 for the nurse. The mean time spent per call was 9.6 +/- 5.9 min for the physician and 3.3 +/- 1.4 min for the nurse. A total of 103.5 h were spent directly on telephonic consultation/communication by the physician and 68.7 h by the nurse, respectively. Of the calls to the physician 78.6% came from other physicians, 51.5% being pediatricians in practice and 57% involving case management. Calls to the nurse were primarily from the laboratory (26.3%), with 93% regarding patients seen on the inpatient or outpatient service. CONCLUSIONS: Telephone consultation/communication is an integral and important part of a PID practice.