Adrian Harvey1, Joan N Vickers2, Ryan Snelgrove3, Matthew F Scott2, Sheila Morrison2. 1. Faculty of Medicine, University of Calgary, Foothills Medical Centre, 1403 29th Street NW, Room 1023 North Tower, Calgary, AB P2N 2T9, Canada. 2. Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada. 3. Faculty of Medicine, University of Calgary, Foothills Medical Centre, 1403 29th Street NW, Room 1023 North Tower, Calgary, AB P2N 2T9, Canada. Electronic address: rsnelgrove@gmail.com.
Abstract
BACKGROUND: Long quiet eye (QE) duration is central to expertise in sports, while cognitive "slowing down" has been identified as a perceptual skill possessed by skilled surgeons. Eye-tracking evidence is lacking about the relationship of QE duration to slowing down in surgeons. The aim of this study was to examine QE duration, hand movement time (MT), fixation location, and fixation duration in highly experienced (HE) and less experienced (LE) surgeons. METHODS: A mobile eye tracker and camera recorded coupled gaze and hand movements. Performance was quantified by blinded review. RESULTS: HE surgeons were rated higher than LE surgeons but did not differ in operating time or MT. HE and LE surgeons differed in fixation duration on the ligament of Berry during phases 1 and 2 and QE duration on the recurrent laryngeal nerve in phase 2. CONCLUSIONS: Long-duration fixation on the ligament of Berry and long-duration QE on the recurrent laryngeal nerve combined with no significant differences in MT provide empirical evidence that HE surgeons cognitively slow down more than LE surgeons during critical phases of the operation.
BACKGROUND: Long quiet eye (QE) duration is central to expertise in sports, while cognitive "slowing down" has been identified as a perceptual skill possessed by skilled surgeons. Eye-tracking evidence is lacking about the relationship of QE duration to slowing down in surgeons. The aim of this study was to examine QE duration, hand movement time (MT), fixation location, and fixation duration in highly experienced (HE) and less experienced (LE) surgeons. METHODS: A mobile eye tracker and camera recorded coupled gaze and hand movements. Performance was quantified by blinded review. RESULTS: HE surgeons were rated higher than LE surgeons but did not differ in operating time or MT. HE and LE surgeons differed in fixation duration on the ligament of Berry during phases 1 and 2 and QE duration on the recurrent laryngeal nerve in phase 2. CONCLUSIONS: Long-duration fixation on the ligament of Berry and long-duration QE on the recurrent laryngeal nerve combined with no significant differences in MT provide empirical evidence that HE surgeons cognitively slow down more than LE surgeons during critical phases of the operation.
Authors: T Kyle Harrison; T Edward Kim; Alex Kou; Cynthia Shum; Edward R Mariano; Steven K Howard Journal: J Anesth Date: 2016-03-15 Impact factor: 2.078
Authors: Stephanie Brams; Ignace T C Hooge; Gal Ziv; Siska Dauwe; Ken Evens; Tony De Wolf; Oron Levin; Johan Wagemans; Werner F Helsen Journal: PLoS One Date: 2018-11-21 Impact factor: 3.240