Abstract
Background: Heads-up-displays (HUDs) and similar projection technologies are increasingly used in complex environments. Their impact
on cognitive load is an important consideration before introduction of such technology into complex #healthcare environments.
Methods: We will search the available literature for studies
reporting cognitive load during the use of HUDs for task performance.
All study
designs will be included as long as a comparison group (no-HUD) was
included in the design.
Population: Adult humans, who were not novices, performing a complex task. Complex task was defined as any task involving simultaneous
performance and processing of information.
Intervention: Heads-up display; Head-mounted display; Projection glasses; Other projection displays including augmented reality and
virtual reality displays
Comparator: No display technology; Heads-down display (as is the status quo for automobile controls and avionics)
Outcome: Broadly defined cognitive impacts including #fatigue,
#cognitivetunneling, task errors, and response times. Data will be
synthesized
and where possible a meta-analysis will be performed using a
random-effects model.
Discussion: This systematic review will be informative for
future implementation of HUDs and similar display technologies for use
in
complex environments. The implications are of importance to groups
implementing HUDs for decision support and as an adjunct to complex
tasks.
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