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Article: The Impact of Expert Visual Guidance on Trainee Visual Search Strategy, Visual Attention and Motor Skills

TitleThe Impact of Expert Visual Guidance on Trainee Visual Search Strategy, Visual Attention and Motor Skills
Authors
Issue Date2015
PublisherFrontiers Research Foundation. The Journal's web site is located at http://www.frontiersin.org/humanneuroscience/
Citation
Frontiers in Human Neuroscience, 2015, v. 9, p. article no. 526 How to Cite?
AbstractMinimally invasive and robotic surgery changes the capacity for surgical mentors to guide their trainees with the control customary to open surgery. This neuroergonomic study aims to assess a “Collaborative Gaze Channel” (CGC); which detects trainer gaze-behavior and displays the point of regard to the trainee. A randomized crossover study was conducted in which twenty subjects performed a simulated robotic surgical task necessitating collaboration either with verbal (control condition) or visual guidance with CGC (study condition). Trainee occipito-parietal (O-P) cortical function was assessed with optical topography (OT) and gaze-behavior was evaluated using video-oculography. Performance during gaze-assistance was significantly superior [biopsy number: (mean ± SD): control = 5.6 ± 1.8 vs. CGC = 6.6 ± 2.0; p < 0.05] and was associated with significantly lower O-P cortical activity [ΔHbO2 mMol × cm [median (IQR)] control = 2.5 (12.0) vs. CGC 0.63 (11.2), p < 0.001]. A random effect model (REM) confirmed the association between guidance mode and O-P excitation. Network cost and global efficiency were not significantly influenced by guidance mode. A gaze channel enhances performance, modulates visual search, and alleviates the burden in brain centers subserving visual attention and does not induce changes in the trainee’s O-P functional network observable with the current OT technique. The results imply that through visual guidance, attentional resources may be liberated, potentially improving the capability of trainees to attend to other safety critical events during the procedure.
Persistent Identifierhttp://hdl.handle.net/10722/229230
ISSN
2015 Impact Factor: 3.634
2015 SCImago Journal Rankings: 1.841
PubMed Central ID

 

DC FieldValueLanguage
dc.contributor.authorLeff, DR-
dc.contributor.authorJames, DRC-
dc.contributor.authorOrihuela-Espina, F-
dc.contributor.authorKwok, KW-
dc.contributor.authorSun, LW-
dc.contributor.authorMylonas, G-
dc.contributor.authorAthanasiou, T-
dc.contributor.authorDarzi, AW-
dc.contributor.authorYang, GZ-
dc.date.accessioned2016-08-23T14:09:47Z-
dc.date.available2016-08-23T14:09:47Z-
dc.date.issued2015-
dc.identifier.citationFrontiers in Human Neuroscience, 2015, v. 9, p. article no. 526-
dc.identifier.issn1662-5161-
dc.identifier.urihttp://hdl.handle.net/10722/229230-
dc.description.abstractMinimally invasive and robotic surgery changes the capacity for surgical mentors to guide their trainees with the control customary to open surgery. This neuroergonomic study aims to assess a “Collaborative Gaze Channel” (CGC); which detects trainer gaze-behavior and displays the point of regard to the trainee. A randomized crossover study was conducted in which twenty subjects performed a simulated robotic surgical task necessitating collaboration either with verbal (control condition) or visual guidance with CGC (study condition). Trainee occipito-parietal (O-P) cortical function was assessed with optical topography (OT) and gaze-behavior was evaluated using video-oculography. Performance during gaze-assistance was significantly superior [biopsy number: (mean ± SD): control = 5.6 ± 1.8 vs. CGC = 6.6 ± 2.0; p < 0.05] and was associated with significantly lower O-P cortical activity [ΔHbO2 mMol × cm [median (IQR)] control = 2.5 (12.0) vs. CGC 0.63 (11.2), p < 0.001]. A random effect model (REM) confirmed the association between guidance mode and O-P excitation. Network cost and global efficiency were not significantly influenced by guidance mode. A gaze channel enhances performance, modulates visual search, and alleviates the burden in brain centers subserving visual attention and does not induce changes in the trainee’s O-P functional network observable with the current OT technique. The results imply that through visual guidance, attentional resources may be liberated, potentially improving the capability of trainees to attend to other safety critical events during the procedure.-
dc.languageeng-
dc.publisherFrontiers Research Foundation. The Journal's web site is located at http://www.frontiersin.org/humanneuroscience/-
dc.relation.ispartofFrontiers in Human Neuroscience-
dc.rightsThis Document is Protected by copyright and was first published by Frontiers. All rights reserved. It is reproduced with permission.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleThe Impact of Expert Visual Guidance on Trainee Visual Search Strategy, Visual Attention and Motor Skills-
dc.typeArticle-
dc.identifier.emailKwok, KW: kwokkw@hku.hk-
dc.identifier.authorityKwok, KW=rp01924-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.3389/fnhum.2015.00526-
dc.identifier.pmid26528160-
dc.identifier.pmcidPMC4604246-
dc.identifier.hkuros259935-
dc.identifier.volume9-
dc.identifier.spagearticle no. 526-
dc.identifier.epagearticle no. 526-
dc.publisher.placeSwitzerland-

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