Past research suggests that performance declines in vigilance originate from the diminishment in available attentional resources. In healthcare, this decline in attention results in errors that potentially influence life-or-death outcomes in many high-level care environments. This study investigated how vigilance performance is influenced by manipulating mental workload (i.e., patient load) during a cardiac telemetry monitoring task. Nursing and psychology students (N = 38) were evaluated for vigilance performance, cognitive and affective states, and physiological arousal. The hypotheses focused on the manifestation of the vigilance decrement as characterized by fewer correct detections and false alarms, increases in perceived workload and stress, as well as greater physiological arousal (less heart rate variability). Results were interpreted via the resource theory of vigilance. Findings from this study support past research for the manifestation of the vigilance decrement, while attesting to its viability for further use in healthcare vigilance research.
|Commitee:||Strybel, Thomas Z., Vu, Kim-Phuong L., Segall, Noa|
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 81/9(E), Masters Abstracts International|
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