Catastrophe models for cognitive workload and fatigue in a vigilance dual task

Area of Science:

• Cognitive psychology
• Human-computer interaction
• Performance dynamics

Background:

• Cognitive workload and fatigue effects are complex, especially in team settings.
• Cusp catastrophe models offer a framework to disentangle these effects.
• Understanding group dynamics is crucial for team performance analysis.

Purpose of the Study:

• Investigate cusp catastrophe models for cognitive workload and fatigue in a vigilance dual task.
• Examine the influence of emotional intelligence and frustration on performance dynamics.
• Analyze performance dynamics for individuals and teams.

Main Methods:

• 141 undergraduates performed a vigilance dual task (simulated security camera display) with varying stimulus speeds while completing a jigsaw puzzle.
• Participants worked individually or in pairs.
• Additional measurements were taken before and after the main tasks.

Main Results:

• The workload cusp model confirmed the impact of speed and frustration on performance changes.
• The fatigue cusp model indicated greater performance fluctuations with increased secondary task work.
• Faster initial vigilance conditions correlated with reduced fatigue.

Conclusions:

• The study supports the effectiveness of cusp catastrophe models for analyzing cognitive tasks.
• Training interventions varying stimulus presentation speed may buffer fatigue.
• Findings generalize to vigilance tasks, warranting further investigation across diverse conditions.