Learning and distraction: Evidence for cognitive load interference in medical education.

Area of Science:

• Cognitive psychology
• Educational technology
• Medical education

Background:

• Distraction can increase cognitive load, while cues may decrease it.
• The effectiveness of instructional cues in distracted learning environments is unclear.
• Investigating whether instruction can mitigate distraction's negative impact on learning.

Purpose of the Study:

• To examine the combined effects of instructional cues and distraction on learning and cognitive load.
• To determine if instructional cues can buffer against learning impairments caused by distraction.

Main Methods:

• A 2x2 factorial experiment with 117 medical students.
• Standardized instructional video on abdominal ultrasound.
• Distraction induced by mental arithmetic; cues via eye movement modeling.

Main Results:

• Cueing alone reduced cognitive load and improved learning.
• Distraction alone impaired learning.
• Combined cueing and distraction eliminated cueing benefits; no compensatory effect observed.

Conclusions:

• Distraction blocks the effectiveness of instructional cues, suggesting a load interference mechanism.
• Working memory overload prevents learners from benefiting from helpful instructions.
• Implications for medical education in distraction-rich environments (AI, notifications, EHR alerts).