The effect of different distractions on remembering delayed intentions

Area of Science:

• Cognitive Psychology
• Human Factors Engineering

Background:

• Delayed intentions are common in safety-critical domains.
• Previous research indicated interruptions during delays cause forgetting.
• Real-world distractions are often handled via multitasking or acknowledgment, not direct interruption.

Purpose of the Study:

• To investigate the impact of multitasking and different interruption types on remembering delayed intentions.
• To compare memory performance under multitasking, interruption, and context change conditions.
• To evaluate the trade-offs between memory improvement and performance on concurrent tasks.

Main Methods:

• Three experiments were conducted using a delay-execute paradigm.
• Experiment 1 examined multitasking and interruption effects compared to a no-distraction control.
• Experiment 2 analyzed interruptions with and without context changes, assessing both intention recall and concurrent task performance.

Main Results:

• Multitasking significantly decreased intention recall compared to no distraction.
• Interruptions further reduced recall compared to multitasking.
• Interruptions without context change improved intention memory but impaired concurrent task performance.

Conclusions:

• Multitasking and interruptions, especially with context changes, can lead to forgetting of delayed intentions in safety-critical settings.
• Findings support the contextual cueing mechanism in delay-execute tasks.
• Strategies to mitigate forgetting in safety-critical domains need to consider the effects of multitasking and interruptions.