Visual scanning behavior and mental workload in aircraft pilots

Area of Science:

• Human-Computer Interaction
• Cognitive Psychology
• Aerospace Psychology

Background:

• Skilled performance in man-machine control tasks is influenced by operator skill and mental workload.
• Visual scanning behavior is a critical component of effective performance in dynamic control environments.

Purpose of the Study:

• To investigate the relationship between operator skill, mental workload, and visual scanning performance in a simulated piloting task.
• To determine if visual scanning patterns can serve as an indicator of operator workload and skill level.

Main Methods:

• An experimental paradigm was developed to assess performance on a simulated piloting task.
• A verbal loading task was introduced to manipulate mental difficulty (workload).
• Visual scanning of instruments was recorded and analyzed, focusing on fixation dwell time.

Main Results:

• Visual scanning varied significantly with the difficulty of the verbal loading task.
• Average fixation dwell time on the primary instrument increased as mental workload increased.
• Novice pilots were more affected by increased workload than expert pilots, showing greater changes in scanning behavior.

Conclusions:

• Visual scanning patterns during skilled control tasks are sensitive to changes in mental workload.
• The findings suggest that visual scanning performance can be a valuable indicator of both operator workload and skill level.
• This research has implications for designing training programs and monitoring operator status in high-demand environments.