The effect of stress on prospective memory in robotic command and control

Area of Science:

• Cognitive Psychology
• Human Factors Engineering
• Neuroscience

Background:

• Prospective memory (PM) is crucial for timely task execution, especially in high-stress environments like military operations.
• Limited research exists on stress's impact on PM, particularly in applied settings and concerning activity-based PM.
• Previous studies often used basic lab paradigms, not reflecting real-world high-risk scenarios or the combined effects of stress and divided attention.

Purpose of the Study:

• To investigate the effects of stress and divided attention on both event-based and activity-based prospective memory.
• To utilize an applied paradigm simulating high-risk/high-stress conditions (remote piloting of robotic reconnaissance missions).
• To differentiate the impact of stress on distinct types of prospective memory under demanding cognitive loads.

Main Methods:

• A between-subjects design manipulated stress (via induction and noise) and divided attention (auditory odd-digit task).
• Prospective memory types (event-based and activity-based) were manipulated within subjects.
• Participants engaged in remotely piloting robotic reconnaissance missions as the applied task.

Main Results:

• Event-based prospective memory accuracy was not significantly affected by stress or divided attention.
• Activity-based prospective memory accuracy showed an increase under high stress conditions.
• Divided attention did not demonstrate a significant effect on either type of prospective memory.

Conclusions:

• Stress uniquely affects activity-based prospective memory, enhancing its performance.
• Stress does not appear to impair event-based prospective memory, consistent with some prior literature.
• Findings highlight the differential impact of stress on cognitive functions in applied, high-demand settings.