@article{ref1,
title="Central station data displays: an experimental evaluation of observer performance. Part 1: Number of displays and observation time",
journal="Intensive care medicine",
year="1989",
author="Crew, A. D. and Old, S. and Graig, A. and Unsworth, G. D. and Fletcher, P. C.",
volume="15",
number="5",
pages="314-318",
abstract="16 experienced ICU nurses monitored simulated central station VDU displays for the occurrence of ectopic beats and for signs of deterioration in general cardiovascular status. Each period of monitoring lasted for 1 h, and on separate occasions each nurse monitored 1, 2, 4 or 6 displays simultaneously. As the number of observed screens increased, performance declined significantly, with reduced identifications of discrete events (e.g., ectopic beat detections), and with increased delays in determining a deterioration in cardiovascular status; in addition, a secondary task was less accurately and efficiently performed, and the nurses tended to become increasingly fatigued. Efficient observing was maintained over the 1 h monitoring period, but only at considerable cost in terms of fatigue and a loss of alertness. The results suggest that there may be restrictions in the use of complex central station facilities at first-line observation posts for patient care.<p /><p>Language: en</p>",
language="en",
issn="0342-4642",
doi="",
url="http://dx.doi.org/"
}