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Angle of Camera View Influences Resumption Lag in a Visual-Motor Task
Natalie R Lodinger1, Patricia R DeLucia2
1Texas Tech University, Lubbock, USA.
Human Factors
|August 28, 2018
Summary
Laparoscopic surgery training should incorporate task interruptions. This practice helps surgeons improve their ability to resume visual-motor tasks, reducing the time needed after interruptions, especially with cognitively demanding side-view camera angles.
Area of Science:
- Cognitive psychology
- Surgical simulation
- Human-computer interaction
Background:
- Resumption lag, the time to restart a task after interruption, increases with task workload.
- Laparoscopic surgery camera views (top vs. side) present different cognitive demands and workloads.
Purpose of the Study:
- To investigate how top-view and side-view camera angles affect resumption lag in a visual-motor task relevant to laparoscopic surgery.
- To determine if differing cognitive demands of camera angles impact task resumption time.
Main Methods:
- Participants performed a peg transfer task, interrupted by a mental rotation task of varying durations and angles.
- Resumption lag and subjective workload ratings were recorded for both top-view and side-view conditions.
Main Results:
- Longer resumption lags were observed with the side-view camera angle compared to the top-view.
- Increased interruption duration also led to longer resumption lags.
- Subjective workload ratings correlated with performance, with the side view rated as more mentally demanding.
Conclusions:
- Cognitively demanding visual-motor tasks require more time to resume after interruptions.
- The findings suggest a need to account for cognitive load associated with camera views in surgical training.
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