L Hedman1, T Klingberg, L Enochsson, A Kjellin, L Felländer-Tsai. 1. Department for Clinical Science Intervention and Technology, Division of Orthopaedics, Karolinska Institutet and Center for Advanced Medical Simulation at Karolinska University Hospital Huddinge, SE-141 86, Stockholm, Sweden.
Abstract
BACKGROUND: This study addresses for the first time the relationship between working memory and performance measures in image-guided instrument navigation with Minimally Invasive Surgical Trainer-Virtual Reality (MIST-VR) and GI Mentor II (a simulator for gastroendoscopy). In light of recent research on simulator training, it is now prime time to ask why in a search for mechanisms rather than show repeatedly that conventional curriculum for simulation training has effect. METHODS: The participants in this study were 28 Swedish medical students taking their course in basic surgery. Visual and verbal working memory span scores were assessed by a validated computer program (RoboMemo) and correlated with visual-spatial ability (MRT-A test), total flow experience (flow scale), mental strain (Borg scale), and performance scores in manipulation and diathermy (MD) using Procedicus MIST-VR and GI Mentor 11 (exercises 1 and 3). RESULTS: Significant Pearson's r correlations were obtained between visual working memory span scores for visual data link (a RoboMemo exercise) and movement economy (r = -0.417; p < 0.05), total time (r = -0.495; p < 0.01), and total score (r = -0.390; p < 0.05) using MIST-MD, as well as total time (r = -0.493; p < 0.05) and efficiency of screening (r = 0.469; p < 0.05) using GI Mentor 11 (exercise 1). Correlations also were found between visual working memory span scores in rotating data link (another RoboMemo exercise) and both total time (r = -0.467; p < 0.05) and efficiency of screening (r = -0.436; p < 0.05) using GI Mentor 11 (exercise 3). Significant Pearson's r correlations also were found between visual-spatial ability scores and several performance scores for the MIST and GI Mentor II exercises. CONCLUSIONS: Findings for the first time demonstrate that visual working memory for surgical novices may be important for performance in virtual simulator training with two well-known and validated simulators.
RCT Entities:
BACKGROUND: This study addresses for the first time the relationship between working memory and performance measures in image-guided instrument navigation with Minimally Invasive Surgical Trainer-Virtual Reality (MIST-VR) and GI Mentor II (a simulator for gastroendoscopy). In light of recent research on simulator training, it is now prime time to ask why in a search for mechanisms rather than show repeatedly that conventional curriculum for simulation training has effect. METHODS: The participants in this study were 28 Swedish medical students taking their course in basic surgery. Visual and verbal working memory span scores were assessed by a validated computer program (RoboMemo) and correlated with visual-spatial ability (MRT-A test), total flow experience (flow scale), mental strain (Borg scale), and performance scores in manipulation and diathermy (MD) using Procedicus MIST-VR and GI Mentor 11 (exercises 1 and 3). RESULTS: Significant Pearson's r correlations were obtained between visual working memory span scores for visual data link (a RoboMemo exercise) and movement economy (r = -0.417; p < 0.05), total time (r = -0.495; p < 0.01), and total score (r = -0.390; p < 0.05) using MIST-MD, as well as total time (r = -0.493; p < 0.05) and efficiency of screening (r = 0.469; p < 0.05) using GI Mentor 11 (exercise 1). Correlations also were found between visual working memory span scores in rotating data link (another RoboMemo exercise) and both total time (r = -0.467; p < 0.05) and efficiency of screening (r = -0.436; p < 0.05) using GI Mentor 11 (exercise 3). Significant Pearson's r correlations also were found between visual-spatial ability scores and several performance scores for the MIST and GI Mentor II exercises. CONCLUSIONS: Findings for the first time demonstrate that visual working memory for surgical novices may be important for performance in virtual simulator training with two well-known and validated simulators.
Authors: Kyle R Wanzel; Stanley J Hamstra; Marco F Caminiti; Dimitri J Anastakis; Ethan D Grober; Richard K Reznick Journal: Surgery Date: 2003-11 Impact factor: 3.982
Authors: E Matt Ritter; David A McClusky; Andrew B Lederman; Anthony G Gallagher; C Daniel Smith Journal: J Gastrointest Surg Date: 2003-11 Impact factor: 3.452
Authors: Mona W Schmidt; Karl-Friedrich Kowalewski; Sarah M Trent; Laura Benner; Beat P Müller-Stich; Felix Nickel Journal: Surg Endosc Date: 2019-05-28 Impact factor: 4.584
Authors: Marcus Schlickum; Leif Hedman; Lars Enochsson; Lars Henningsohn; Ann Kjellin; Li Felländer-Tsai Journal: World J Surg Date: 2011-04 Impact factor: 3.352