Evidence map›Paper›PMID 40624424›Full record

ArticleSurgical endoscopy2025

Visual attention and cognitive workload using different laparoscopic box trainers and mixed-reality feedback.

Aseel F Khanfar, Sanaz Motamedi, Shawn D Safford, Jason Moore, Jessica Menold, Scarlett Miller

Abstract read
In one paragraph

Article in Surgical endoscopy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Aseel F KhanfarDepartment of Industrial Engineering, The Pennsylvania State University, University Park, PA, USA.
Sanaz MotamediDepartment of Industrial Engineering, The Pennsylvania State University, University Park, PA, USA.
Shawn D SaffordDivision of Pediatric General and Thoracic Surgery, UPMC Children's Hospital of Pittsburgh, 111 South Front Street, Harrisburg, PA, 17101, USA.
Jason MooreDepartment of Mechanical Engineering, The Pennsylvania State University, University Park, PA, USA.
Jessica MenoldDepartment of Mechanical Engineering, The Pennsylvania State University, University Park, PA, USA.
Scarlett MillerDepartment of Industrial Engineering, The Pennsylvania State University, University Park, PA, USA. scarlettmiller@psu.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLaparoscopic techniques have revolutionized minimally invasive surgery (MIS) but remain visually and mentally demanding, especially in smaller operative sites (e.g., pediatric patients). Though traditional box trainers serve as the golden standard for laparoscopic simulation-based training (SBT), they are limited due to their lack of real-time feedback and objective assessments. Advancements in SBT using Visual Reality (VR) and Augmented/Mixed-Reality (AR/MR) can provide objective real-time evaluations. This study assessed the effects of mixed-reality feedback on trainees' visual attention and mental workload during adult and pediatric laparoscopic SBT.

methodsExpert (n = 4) and novice surgeons (n = 24) were recruited to investigate the effects of various laparoscopic box trainers (e.g., adult and pediatric patients), as well as different feedback conditions in a MR setting, on trainees' visual attention and perceived mental workload. Peg transfer task was chosen to evaluate novices' ambidexterity and eye-hand coordination. Eye-tracking metrics (fixations, fixation durations, saccades, and saccade durations) and mental workload indicators (pupil diameter and NASA-TLX scores) were collected. K-means clustering was used to classify novices into proficiency groups based on these metrics.

resultsEye-tracking and mental workload metrics successfully differentiated two novice proficiency groups, significantly different from expert performance. Analysis revealed two key findings: novices demonstrated shorter fixation durations when using the pediatric trainer when compared to the adult trainer, and pupil diameter was lower for participants who started their trials with pediatric trainers (p = 0.016). However, the presence or absence of mixed-reality feedback did not significantly affect visual attention patterns or mental workload measures.

conclusionsVisual attention and mental workload metrics in mixed-reality environments effectively differentiated novice proficiency levels in laparoscopic box trainers. Our findings validate eye-tracking metrics for objective skill assessment in both adult and pediatric trainers, highlighting their potential for adaptive training programs and competency evaluation in surgical education.

Indexed as

AttentionClinical CompetenceCognitionLaparoscopySimulation TrainingVirtual RealityWorkloadAdultEye-Tracking TechnologyFemaleHumansMaleEye-tracking metricsLaparoscopic trainingMental workloadMixed-reality simulatorsPediatric laparoscopyVisual attention

Identifiers

PMID40624424
PMCPMC12287135

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.