title: Complacency and bias in human use of automation: an attentional integration.
abstract: OBJECTIVE
  Our aim was to review empirical studies of complacency and bias in human interaction with automated and decision support systems and provide an integrated theoretical model for their explanation.
  
  
  BACKGROUND
  Automation-related complacency and automation bias have typically been considered separately and independently.
  
  
  METHODS
  Studies on complacency and automation bias were analyzed with respect to the cognitive processes involved.
  
  
  RESULTS
  Automation complacency occurs under conditions of multiple-task load, when manual tasks compete with the automated task for the operator's attention. Automation complacency is found in both naive and expert participants and cannot be overcome with simple practice. Automation bias results in making both omission and commission errors when decision aids are imperfect. Automation bias occurs in both naive and expert participants, cannot be prevented by training or instructions, and can affect decision making in individuals as well as in teams. While automation bias has been conceived of as a special case of decision bias, our analysis suggests that it also depends on attentional processes similar to those involved in automation-related complacency.
  
  
  CONCLUSIONS
  Complacency and automation bias represent different manifestations of overlapping automation-induced phenomena, with attention playing a central role. An integrated model of complacency and automation bias shows that they result from the dynamic interaction of personal, situational, and automation-related characteristics.
  
  
  CONCLUSIONS
  The integrated model and attentional synthesis provides a heuristic framework for further research on complacency and automation bias and design options for mitigating such effects in automated and decision support systems.
authors.affiliation: Arch Lab, George Mason University, Fairfax, Virginia 22030, USA. rparasur@gmu.edu
authors.forename: Raja
authors.initials: R
authors.lastname: Parasuraman
authors.forename: Dietrich H
authors.initials: DH
authors.lastname: Manzey
mesh_terms: D001288:Attention; D001292:Attitude to Computers; D001331:Automation; D001359:Aviation; D003658:Decision Making, Computer-Assisted; D006801:Humans; D008328:Man-Machine Systems; D008960:Models, Psychological; D035502:Trust; D014584:User-Computer Interface