Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Cognitive Dissonance01:38

Cognitive Dissonance

37.5K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
37.5K
Causes of Social Behavior II: Cognitive Processes01:15

Causes of Social Behavior II: Cognitive Processes

203
Cognitive processes affect social behavior by guiding how individuals perceive, interpret, and respond to social stimuli. These mental processes enable individuals to assess others' behaviors, attribute causes to their actions, and form expectations based on past experiences.Causes of Behavior and Social JudgmentsIndividuals determine the causes of others' behaviors by distinguishing between personal traits and external circumstances. For example, if a friend frequently arrives late, an...
203
Reliability and Validity01:29

Reliability and Validity

13.9K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
13.9K
Virtual Work01:20

Virtual Work

1.4K
The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
1.4K
Data Validation01:15

Data Validation

1.9K
Method validation is a crucial process in analytical chemistry designed to confirm that a given method consistently produces reliable and high-quality results. This process is essential when a method is applied to different sample matrices or when procedural modifications are made, ensuring that the results meet acceptable standards across various applications.
Key parameters for method validation include:
1.9K
Data Validation01:03

Data Validation

6.8K
Data validation is an essential part of a comprehensive assessment. Validation is confirming or verifying and opening the door to gathering more assessment data as it clarifies vague or unclear data. The process of checking and verifying the collected information is called data validation. The primary purpose of data validation is to ensure data is as free from error, bias, and misinterpretation as possible.
Nursing assessment guides are generally based on holistic models rather than medical...
6.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Frostbite - Time is Tissue: The Modern Vascular Management of Freezing Cold Injuries.

European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery·2026
Same author

Case Report: Transrectal ultrasound in adolescent Müllerian anomalies - bridging the gap between conflicting international guidance and real-world clinical pragmatism.

Frontiers in reproductive health·2026
Same author

Long-term surgical outcomes for the surgical management of complete intrathoracic stomach (CIS).

Surgical endoscopy·2026
Same author

Role of Outdoor Air Pollution, Noise Pollution, and Green Exposure on Abdominal Aortic Aneurysm Progression.

European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery·2026
Same author

Modified abdominal access for the obese population requiring laparoscopic cholecystectomy: Our recommendation.

Journal of minimal access surgery·2025
Same author

Transabdominal Preperitoneal (TAPP) Approach for Spigelian Hernia: Our Clinical Experience and a Comprehensive Review of the Literature.

Cureus·2025

Related Experiment Video

Updated: Feb 2, 2026

Virtual Reality Experiments with Physiological Measures
07:09

Virtual Reality Experiments with Physiological Measures

Published on: August 29, 2018

13.3K

Validation of a virtual reality laparoscopic appendicectomy simulator: a novel process using cognitive task analysis.

Sandeep Krishan Nayar1,2, Liam Musto3, Roland Fernandes3

  • 1Department of General Surgery, Maidstone and Tunbridge Wells NHS Trust, Maidstone, UK. sandeep.nayar@doctors.org.uk.

Irish Journal of Medical Science
|November 21, 2018
PubMed
Summary

The LAP Mentor virtual reality simulator effectively trains laparoscopic appendicectomy (LA). Repeated practice on the simulator helps novices achieve expert benchmarks in surgical performance and reduces mental workload.

Keywords:
Cognitive task analysisLaparoscopic appendicectomyLearning curve assessmentVirtual reality simulation

More Related Videos

Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior
06:38

Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior

Published on: June 9, 2020

5.3K
Developing a Virtual Reality Video Game to Simulate Rip Currents
08:37

Developing a Virtual Reality Video Game to Simulate Rip Currents

Published on: July 16, 2020

6.0K

Related Experiment Videos

Last Updated: Feb 2, 2026

Virtual Reality Experiments with Physiological Measures
07:09

Virtual Reality Experiments with Physiological Measures

Published on: August 29, 2018

13.3K
Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior
06:38

Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior

Published on: June 9, 2020

5.3K
Developing a Virtual Reality Video Game to Simulate Rip Currents
08:37

Developing a Virtual Reality Video Game to Simulate Rip Currents

Published on: July 16, 2020

6.0K

Area of Science:

  • Medical Simulation
  • Surgical Education
  • Virtual Reality Technology

Background:

  • Virtual reality (VR) simulation is crucial for surgical training, enhancing surgical quality and patient outcomes.
  • The LAP Mentor (Simbionix™) is a VR simulator used for surgical training.

Purpose of the Study:

  • To validate the LAP Mentor VR simulator for laparoscopic appendicectomy (LA) training.
  • To incorporate Cognitive Task Analysis (CTA) for a comprehensive assessment of the simulator's validity.

Main Methods:

  • Thirty-two novices and nine experienced surgeons performed simulated LAs.
  • Face, content, and construct validity were assessed using expert consensus, CTA-derived questions, dexterity metrics, OSATS, NASA-TLX, and SMEQ.
  • Learning curve was evaluated by having ten novices perform multiple simulated LAs.

Main Results:

  • The LAP Mentor demonstrated face, content, and construct validity for LA simulation.
  • Experienced surgeons outperformed novices in speed, efficiency (fewer movements), and surgical quality (higher OSATS scores).
  • Novices showed significant improvements in performance and reduced mental workload after repeated practice, reaching expert benchmarks.

Conclusions:

  • The LAP Mentor VR simulator is a valid and effective tool for laparoscopic appendicectomy surgical training.
  • Task repetition and simulator use lead to skill acquisition and performance comparable to experienced surgeons.