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Articles by M Oliver
Total Records ( 2 ) for M Oliver
  D. H. J Davis , M Oliver and A. J. Byrne
  Background

Cognitive overload has been recognized as a significant cause of error in industries such as aviation, and measuring mental workload has become a key method of improving safety. The aim of this study was to pilot the use of a new method of measuring mental workload using a previously published study design.

Methods

Ten trainee anaesthetists were exposed to a simulated crisis, similar to that used in a previous study. The mental workload of the trainees was assessed by measuring their response times to a wireless vibrotactile device.

Results

Although all subjects treated the ‘patient’ adequately, response times increased significantly during the crisis (P=0.005). These findings are consistent with increased mental workload and with the findings of other studies using similar techniques.

Conclusions

These findings confirm the importance of mental workload to the performance of anaesthetists, and suggest that raised mental workload is likely to be a common problem. Although further studies are required, the method described may provide a useful method for the measurement of the mental workload of anaesthetists.

  A. J Byrne , M Oliver , O Bodger , W. A Barnett , D Williams , H Jones and A. Murphy
  Background

Cognitive overload has been recognized as a significant cause of error in industries such as aviation and measuring mental workload has become a key method of improving safety. The aim of this study was to pilot the use of a new method of measuring mental workload in the operating theatre using a previously published methodology.

Methods

The mental workload of the anaesthetists was assessed by measuring their response times to a wireless vibrotactile device and the NASA TLX subjective workload score during routine surgical procedures. Primary task workload was inferred from the phase of anaesthesia.

Results

Significantly increased response time was associated with the induction phase of anaesthesia compared with maintenance/emergence, non-consultant grade, and during more complex cases. Increased response was also associated with self-reported mental load, physical load, and frustration. These findings are consistent with periods of increased mental workload and with the findings of other studies using similar techniques.

Conclusions

These findings confirm the importance of mental workload to the performance of anaesthetists and suggest that increased mental workload is likely to be a common problem in clinical practice. Although further studies are required, the method described may be useful for the measurement of the mental workload of anaesthetists.

 
 
 
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